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Biology Midterm Real 2021

Total questions: 190

Worksheet time: 3hrs 3mins

Name
Class
Date
1.

The movement of particles from an area of high to low concentration is known as--

a)

Passive Transport

b)

Active Transport

2.

What is it called when large molecules move across the cell membrane from an area of high concentration to an area of low concentration through a protein channel?

a)

Diffusion

b)

Osmosis

c)

Active Transport

d)

Facilitated Diffusion

3.

How does a cell maintain homeostasis?

a)

By controlling what enters and leaves the cell

b)

Flexibility

c)

Protective barrier

d)

Structure and support

4.

Cell membrane transport that occurs without energy is called--

a)

active transport

b)

endocytosis

c)

passive transport

d)

exocytosis

5.

What is the name of the process in which small molecules move from an area of high concentration to an area of low concentration across the cell membrane

a)

Diffusion

b)

Osmosis

c)

Active Transport

d)

Facilitated Diffusion

6.
What is the difference between active and passive transport?
a)
Active does not need energy and passive uses ATP (energy)
b)
Active uses ATP (energy) and passive does not need energy
c)
Active stores transport proteins and passive releases 
d)
Active uses hormones and passive does not 
7.

The movement of molecules from low to high is known as

a)

simple diffusion

b)

facilitated diffusion

c)

active transport

d)

osmosis

8.
ALL living cells have this in common
a)
Nucleus
b)
Cell Membrane
c)
Cell Wall
d)
Mitochondria
9.
Osmosis is the movement of _____ across a membrane.
a)
food
b)
energy
c)
oxygen
d)
water
10.
Which is true about active transport?
a)
It requires energy
b)
It does not require energy
c)
It moves substances down the concentration gradient
d)
it moves material from high to low concentration
11.
The concentration of water is higher in the soil than in plant root cells. Water moves into root cells of a plant by...
a)
Facilitated Diffusion
b)
Simple Diffusion
c)
Active Transport
d)
Osmosis
12.
This cell structure helps organisms maintain homeostasis by controlling what substances may enter or leave cells.
a)
vacuole
b)
nucleus
c)
cell membrane
d)
cell wall
13.
What type of transport is illustrated?
a)
facilitated diffusion
b)
active transport
c)
diffusion
d)
osmosis
14.
The cell membrane is made mostly of
a)
phospholipid monolayer and proteins
b)
phospholipid bilayer and proteins
c)
proteins and carbohydrates bilayer
d)
triglycerides and carbohydrates
15.

What is diffusion

a)

The movement of small particles from an area of high concentration to an area of low concentration

b)

The movement of large particles from an area of high concentration to an area of low concentration

c)

The movement of small particles from an area of low concentration to an area of high concentration

d)

The movement of large particles from an area of low concentration to an area of high concentration

16.
Which type of transport requires an input of energy?
a)
Passive Transport
b)
Osmosis
c)
Simple Diffusion
d)
Active Transport
17.

Which description best identifies this type of cellular transport?

a)

Active transport, because molecules are moving from an area of low concentration to high concentration with the help of an energy source.

b)

Facilitated diffusion, because energy is being used to move molecules from an area of high concentration to low concentration.

c)

Osmosis, because energy is not being used to move molecules from an area of high concentration to low concentration.

d)

Active transport, because molecules are moving from an area of low concentration to high concentration without the help of an energy source.

18.

When you find an unlabeled bottle containing an unknown chemical in the lab, you should –

a)

taste the chemical

b)

smell it to see what it is

c)

pour it down the drain

d)

ask your teacher

19.

Some students used vinegar to dissolve away the shells of three eggs and used these eggs as models of human red blood cells. The students observed the changes in the eggs when they were placed in different solutions.


Which statement best describes the role of the cell membrane in this model?

a)

The cell membrane is an impermeable barrier that prevents water from entering the cell.

b)

The cell membrane allows solutes to enter the cell, which causes the cell to shrink.

c)

The cell membrane allows water to enter and leave the cell.

d)

The cell membrane removes solutes from the environment.

20.
All living things are made of...
a)
atoms 
b)
cells 
c)
bacteria 
d)
plants 
21.
What is unicellular? 
a)
one cell 
b)
many cells 
c)
no nuclues 
d)
DNA 
22.
What is multicellular? 
a)
one cell 
b)
no cells 
c)
many cells 
d)
no nucleus 
23.
What type of cell has a nucleus? 
a)
eukaryotic
b)
prokaryotic 
24.
What type of cell does not have a nucleus?
a)
eukaryotic 
b)
prokaryotic 
25.
Bacteria is what kind of cell?
a)
Eukaryotic
b)
Prokaryotic
26.
What kind of cell is this?
a)
Eukaryotic
b)
Prokaryotic
27.
Cells can only be seen with the help of a...
a)
hand lens 
b)
magnifying glass
c)
3D glasses 
d)
microscope 
28.
Which of the following in NOT a characteristic of eukaryotic cells?
a)
DNA is separated from the cytoplasm by a nuclear membrane
b)
Large
c)
Complex 
d)
Lack membrane-bound organelles
29.
How are prokaryotes and eukaryotes similar?
a)
They both contain membrane-bound organelles.
b)
They both have cell membranes.
c)
The both have nuclei.
d)
They both have chloroplasts.
30.

Which cell is larger?

a)

Prokaryotic

b)

Eukaryotic

31.

Which cell is smaller?

a)

Prokaryotic

b)

Eukaryotic

32.

Which cell is more complex?

a)

Prokaryotic

b)

Eukaryotic

33.

Which cell is simpler?

a)

Prokaryotic

b)

Eukaryotic

34.

This cell has a nucleus, that means it is ...

a)

Prokaryotic

b)

Eukaryotic

35.

This is a __________________cell.

a)

Prokaryotic

b)

Eukaryotic

36.

Which controls all functions of the cell?

a)

Ribosomes

b)

Cytoplasm

c)

Cell Membrane

d)

Nucleus

37.

A scientist observes a cell that is surrounded by a cell wall and that lacks a nucleus and membrane-bound organelles.


What can the scientist conclude about the cell?

a)

The cell is prokaryotic

b)

The cell is eukaryotic plant cell

c)

The cell is eukaryotic animal cell

d)

The cell is part of a multicellular organism

38.

If an animal cell is placed in distilled WATER, it will swell and burst. The bursting of the cell is a result of which biological process?

a)

active transport

b)

enzyme activity

c)

osmosis

d)

respiration

39.

Which process is best illustrated by the diagram above?

a)

fermentation

b)

cell respiration

c)

digestion

d)

photosynthesis

40.

Transmembrane proteins span the width of cell membranes. Four types of transmembrane proteins are shown in a section of a cell membrane.


Although these proteins have different specific functions, they all —

a)

help the cell interact with its external environment

b)

synthesize molecules that signal other cells

c)

stop chemical reactions within the cell

d)

remove large waste particles from the cytoplasm of the cell

41.

What converts nitrogen gas into a usable form for plants and animals?

a)

bacteria

b)

rain

c)

fungi

d)

car exhaust

42.

The process in which nitrogen circulates and is recycled is called

a)

The nitrogen cycle

b)

The carbon cycle

c)

The water cycle

d)

The phosphorus cycle

43.

Organisms that need nitrogen to survive.

a)

only plants

b)

only animals

c)

only bacteria

d)

all living things

44.

How is nitrogen "fixed" into a usable form for plants?

a)

Through action of bacteria only

b)

Through lightning only

c)

Through action of bacteria and lightning

d)

Through photosynthesis

45.

How do animals get the nitrogen they need?

a)

From the air they breathe

b)

From the water they drink

c)

From the food they eat

d)

From the sun

46.

Gas that makes up 78% of our atmosphere.

a)

Oxygen

b)

Nitrogen

c)

Hydrogen

d)

Carbon Dioxide

47.

What is the process of combining nitrogen gas with other elements to make nitrogen into usable compounds?

a)

nitrogen composition

b)

nitrogen fixation

c)

ammonia

d)

denitrification

48.

What is the formula for atmospheric nitrogen?

a)

N

b)

N2

c)

NH3

d)

NO3

49.

What process occurs when dead plant and animal matter decomposes and nitrogen is released back into the atmosphere?

a)

Assimilation

b)

Fixation

c)

Ammonification

d)

Denitrification

50.

Plants and animals cannot use nitrogen directly from the air.

a)

True

b)

False

51.

Bacteria fix nitrogen from the atmosphere into a form plants can use.

a)

True

b)

False

52.
Plants and animals need nitrogen to make __________.
a)
Protein
b)
Carbohydrates
c)
Lipids
d)
Minerals
53.

What is the role of decomposing bacteria in the nitrogen cycle?

a)

change Nitrogen gas into Nitrate

b)

Return the nitrogen compounds to the soil

c)

Turn nitrogen into water

d)

Turn nitrate into nitrogen gas

54.

Where can nitrogen fixing bacteria be found

a)

Free living in the soil

b)

under the leaves of flowering plants

c)

in the atmosphere

d)

living on the nodules of certain plants

55.

Legumes, such as clover and alfalfa, have nodules on their roots that contain nitrogen-fixing bacteria. These bacteria convert nitrogen gas from the atmosphere into nitrates.


Which of the following best accounts for the presence of nitrogen-fixing bacteria in legume root nodules?

a)

Nitrates are a food source for earthworms.

b)

Plants can use nitrates, but not nitrogen gas.

c)

Nitrates are one of the reactants in photosynthesis.

d)

Nitrogen gas is toxic to most plants, but nitrates are nontoxic.

56.

Which food chain correctly summarizes the flow of energy through an ecosystem?

a)

sun -> rabbit -> grass -> fox

b)

rabbit -> fox -> sun -> grass

c)

fox -> sun -> rabbit -> grass

d)

sun -> grass -> rabbit -> fox

57.

Of the following organelles, which is not found in bacteria?

a)

ribosome

b)

nuclear membrane

c)

cytoplasm

d)

cell membrane

58.
Which biomolecule is made of nucleotides and contain you DNA?
a)
Carbohydrate
b)
Lipids
c)
Protein
d)
Nucleic Acid
59.
Which biomolecule has sugars and starches?
a)
Lipids
b)
Proteins
c)
Carbohydrates
d)
Nucleic Acid
60.
Which biomolecule functions include enzymes­ which speeds the rate of chemical reactions, structural components in cells, mechanical functions in muscles and cytoskeleton, cell signaling, and immune response; provides structure and helps with chemical reactions 
a)
Protein
b)
Lipids
c)
Carbohydrate
d)
Nucleic Acid
61.
Which biomolecule is important source of energy for humans; glucose for human cells, tissues, and organs; provides fiber, sugar, and starches; provides structural support, cell wall, and cell membrane maker?
a)
Nucleic Acid
b)
Lipid
c)
Carbohydrate
d)
Protein
62.
Which biomolecule includes fats, such as triglycerides, oils, waxes, and steroids (cholesterol); insoluble in water; provides energy storage, insulation, part of cell membrane, and hormones 
a)
Nucleic Acid
b)
Lipids
c)
Carbohydrate
d)
Protein
63.
Lipids are made up of which of the following?
a)
glycerol and fatty acids tails
b)
glycerol and monolipids
c)
fatty acids and phosolipids
d)
amino acids and nucleotides
64.
What is the monomer of nucleic acids?
a)
Glycerol
b)
Monosaccharides
c)
Amino Acids
d)
Nucleotides
65.
The arrangement of which three components is used to distinguish one molecule from another?
a)
carbon, hydrogen, and oxygen
b)
glucose, fructose, and ribose
c)
peptide, fatty acid, and purine
d)
water, carbon dioxide, and notrogen
66.
Which group of organic compounds contains fatty acids?
a)
Carbohydrates
b)
Lipids
c)
Nucleic Acids
d)
Proteins
67.
Which of the following answers links a biomolecule with one of its proper functions?
a)
Lipids - Store genetic information
b)
Carbohydrates - short term energy storage
c)
Nucleic Acids - Catalyze reactions
d)
Proteins - long term energy storage
68.
Which biomolecule is found in pastas and breads? (Hint: it is a polymer)
a)
Lipid
b)
Protein
c)
Simple Carbohydrate
d)
Complex Carbohydrate
69.
Which biomolecule is made of nucleotides and include your DNA? (Hint: they carry genetic information)
a)
Carbohydrate
b)
Lipids
c)
Protein
d)
Nucleic Acid
70.
Which biomolecule is responsible for insulation and LONG term energy storage?
a)
Proteins
b)
Nucleic Acids
c)
Lipids
d)
Carbohydrates
71.
Which biomolecule includes sugars and starches? (Hint: simple or complex)
a)
Lipids
b)
Proteins
c)
Carbohydrates
d)
Nucleic Acids
72.
Which biomolecule group includes fats, oils, and waxes?
a)
Proteins
b)
Nucleic Acid
c)
Lipids
d)
Carbohydrate
73.
ALL polymers (large molecules) are made up of...
a)
monosaccharides
b)
monomers
c)
proteins
d)
None of these
74.
Which of the following is NOT a biomolecule?
a)
Water
b)
Nucleic Acid
c)
Protein
d)
Lipid
75.
Which 2 molecules contains the elements C-H-O and function pertains to energy?
a)
Lipids and Protein
b)
Carbohydrates and Nucleic Acids
c)
Protein and Carbohydrates
d)
Carbohydrates and Lipids
76.

What is the function of carbohydrates?

a)

provides quick energy

b)

stores energy

c)

helps with growth and repair of tissues

d)

stores genetic information

77.

What is the function of lipids?

a)

provides quick energy

b)

stores energy

c)

helps with growth and repair of tissues

d)

stores genetic information

78.

What is the function of proteins?

a)

provides quick energy

b)

stores energy

c)

helps with growth and repair of tissues

d)

stores genetic information

79.

What is the function of nucleic acid?

a)

provides quick energy

b)

stores energy

c)

helps with growth and repair of tissues

d)

stores genetic information

80.

What is the monomer for carbohydrates?

a)

Monosaccarides

b)

Fatty Acids

c)

Amino Acids

d)

Nucleotides

81.

What is the monomer for Lipids?

a)

Monosaccarides

b)

Fatty Acids

c)

Amino Acids

d)

Nucleotides

82.

What is the monomer for proteins?

a)

Monosaccarides

b)

Fatty Acids

c)

Amino Acids

d)

Nucleotides

83.

What is the monomer for nucleic acid?

a)

Monosaccarides

b)

Fatty Acids

c)

Amino Acids

d)

Nucleotides

84.

Which are examples of a carbohydrate?

a)

glucose, pasta, bread

b)

fats, oils, waxes

c)

meats, enzyme, lactase, eggs

d)

DNA, RNA

85.

Which are examples of proteins?

a)

glucose, pasta, bread

b)

fats, oils, waxes

c)

meats, enzyme, lactase, eggs

d)

DNA, RNA

86.

Which are examples of Nucleic Acids?

a)

glucose, pasta, bread

b)

fats, oils, waxes

c)

meats, enzyme, lactase, eggs

d)

DNA, RNA

87.

Which of the following biomolecules typically contains both nitrogen and phosphate?

a)

lipid

b)

protein

c)

nucleic acid

d)

carbohydrate

88.
During cellular respiration, what do animal cells use to produce energy from food?
a)
sunlight
b)
meat
c)
water
d)
oxygen
89.
During photosynthesis, what gas do plants release?
a)
oxygen
b)
carbon dioxide
c)
water
d)
nitrogen
90.
Photosynthesis is important because....
a)
plants need air to breathe
b)
it makes the plants green
c)
it is the process by which plants make their own food
d)
without it the Earth would all be a desert
91.
The energy that starts the process of photosynthesis comes from....
a)
sunlight
b)
transpiration
c)
cellular respiration
d)
germination
92.
The process by which cells use oxygen to produce energy from food is called?
a)
photosynthesis
b)
transpiration
c)
cellular respiration
d)
germination
93.

Why are many plants green?

a)

plant cells are green

b)

plants absorb green light

c)

chlorophyll reflects green light

d)

rigid cell walls are green

94.

Identify the organelle responsible for photosynthesis.

a)

mitochondira

b)

chloroplast

c)

cell wall

d)

centriole

95.

Identify the organelle responsible for cellular respiration.

a)

mitochondria

b)

centriole

c)

chloroplast

d)

cell wall

96.

What are the reactants of photosynthesis?

a)

carbon dioxide, water, and sunlight

b)

oxygen and glucose

c)

carbon dioxide and glucose

d)

carbon dioxide, water, and ATP

97.

What are the reactants of cellular respiration?

a)

carbon dioxide, water, and sunlight

b)

oxygen and glucose

c)

carbon dioxide and glucose

d)

carbon dioxide, water, and ATP

98.

What are the products of cellular respiration?

a)

carbon dioxide, water, and sunlight

b)

oxygen and glucose

c)

carbon dioxide and glucose

d)

carbon dioxide, water, and ATP

99.

Which statement describes a way in which cellular respiration differs from photosynthesis?

a)

Cellular respiration consists of two phases.

b)

Cellular respiration releases carbon dioxide

c)

Cellular respiration provides energy for the cell.

d)

Cellular respiration is carried out in one specific organelle.

100.

How would the food web be affected if the phytoplankton were removed?

a)

Organisms that feed directly on the phytoplankton would be affected

b)

Organisms that feed indirectly on the zooplankton would not be affected

c)

Only the killer whale and the seals would be affected

d)

None of the organisms would be affected

101.

Two molecules include the type of sugar that forms a section of the molecules and the identity of one of the four nitrogenous bases that make up another section of the molecules.


These two molecules are —

a)

ADP and ATP

b)

ADP and ATP

c)

DNA and RNA

d)

RNA and ATP

102.

Lactose is found in milk products. It is converted by the body into a usable form in a series of chemical reactions. The diagram shows the series of reactions that convert lactose into a usable form.


If Enzyme 2 is denatured, the levels of which substance will increase?

a)

Lactose

b)

Galactose

c)

Galactose-1-phosphate

d)

Glucose-6-phosphate

103.

Pepsin and trypsin are two of the digestive enzymes that break down protein. A group of students studied the pH requirements of these enzymes. The graph below shows the results.


The students found that pepsin functions best in an acid environment and trypsin functions best in a neutral environment. Based on their observations, pepsin most likely aids in digestion in which part of the human body?

a)

Pancreas

b)

Intestines

c)

Mouth

d)

Stomach

104.

What product of photosynthesis and reactant for respiration belongs in the box to complete the cycle?

a)

Glucose and oxygen

b)

ATP and ADP

c)

Hormones

d)

Chlorophyll

105.

Which statement explains the effect of an inhibitor on an enzyme?

a)

A substrate will be able to bond with the enzyme.

b)

The enzyme will likely be attacked by immune cells

c)

The enzyme will be unable to produce more enzymes.

d)

A substrate will be unable to attach to the enzyme.

106.

The Biosphere contains all ecosystems

a)

True

b)

False

107.

Select the examples of biotic things

a)

Plants

b)

Soil

c)

Sun

d)

Animals

108.

Select examples of abiotic things

a)

Soil

b)

Air

c)

Rocks

d)

Water

e)

Animals

109.
The efficiency of energy transfer from a lower trophic level to the next highest level is roughly
a)
1%
b)
10%
c)
100%
d)
1000%
110.
An organism that uses an outside source of energy like the sun to create energy-rich food molecules.
a)
Consumer
b)
Producer
c)
Decomposer
d)
Parasite 
111.
If only 10% of an organism's energy is available for the next trophic level, what happens with the other 90% of the energy?
a)
It is destroyed after it is used up.
b)
It is used for life processes or lost as body heat.
c)
It remains for the next trophic level IF the predator consumes ALL of the organism.
d)
It is lost completely as body heat. 
112.

Organism

a)

Something that is not alive

b)

A complete living thing

c)

Many living things

d)

Where something lives

113.

Species

a)

Broadest groups of taxonomy

b)

The taxonomic group that follows domains

c)

Same type of organism

d)

A living thing

114.

Which of the following correctly lists the levels of organization from most complex to least complex?

a)

Community, Organism, Population, Ecosystem

b)

Population, Community, Ecosystem, Organism

c)

Ecosystem, Community, Population, Organism

d)

Organism, Population, Community, Ecosystem

115.

All the organisms that are the same type in a certain area

a)

Population

b)

Organism

c)

Community

d)

Ecosystem

116.

All the different types of organisms living in a certain area

a)

Community

b)

Ecosystem

c)

Organism

d)

Population

117.

The biotic and abiotic factors that work together in an area

a)

Community

b)

Ecosystem

c)

Organism

d)

Population

118.

The most specific (least complex) level of organization within an ecosystem

a)

Community

b)

Population

c)

Organism

d)

Ecosystem

119.
A duck, a dragonfly, a morel mushroom and a bobcat are all examples of...
a)
organisms.
b)
populations.
c)
communties.
d)
ecosystems.
120.

Jacob is going out to his grandparents farm. On the farm is a stream that he likes to fish at. When he is fishing he sees many differernt speacies of fish as well as maple and oak trees and dragonflies. What Jacob is seeing is an example of what level of organization?

a)

organism

b)

population

c)

community

d)

ecosystem

121.
Which is an example of an abiotic factor?
a)
Grass
b)
Trees
c)
Rain
d)
Birds
122.
What are the biotic factors in this image?
a)
sunlight, elephants, and grasses
b)
sunlight, water,  and air
c)
elephants, plants, trees 
123.
What are the abiotic factors in this image? 
a)
water, sunlight, dirt, air
b)
birds and plants
c)
water, plants, and birds 
124.

A population must be of the same ________________?

a)

Color

b)

Gender

c)

Age

d)

Species

125.

The table lists the organisms that the student observed.

Which level of biological organization has the student described in the table?

a)

Biosphere

b)

Organelle

c)

Ecosystem

d)

Community

126.

Which of the following best describes primary succession?

a)

Volcano wipes out ecosystem that gradually grows back from ash covered soil

b)

Volcano creates a new island of rock that must break down to form an ecosystem

c)

Forest fire burns down forest that must bounce back over time

d)

Tornado destroys a crop that must slowly grow back over time.

127.

Breaking News! A new island has formed off of Hawaii! What must occur for it to become an ecosystem?

a)

Secondary Succession

b)

Aquatic succession

c)

Primary Succession

d)

Ferns must grow

128.

Which would most likely result in primary succession?

a)

old forest growing

b)

undisturbed prairie

c)

pollution kills mountain lake species

d)

a Newly formed volcanic island

129.
succession that occurs in an area where soil is already present
a)
ecological succession 
b)
primary succession 
c)
secondary succession
d)
pioneer speciles
130.
the first organisms that appear in an ecological community
a)
ecological succession 
b)
primary succession 
c)
secondary succession
d)
pioneer speciles
131.
starts with bare rock followed by lichen
a)
primary succession 
b)
secondary succession
c)
both types of succession
132.
reaches a climax community quicker because soil is already present
a)
primary succession 
b)
secondary succession
c)
both types of succession
133.
How do lichens contribute to primary succession?
a)
Lichens decompose organic matter from animals and plants
b)
Lichens begin to break down rock to form soil
c)
Lichens are nitrogen fixing bacteria
134.
Natural disasters such as flooding and tornadoes are linked to ________________.
a)
primary
b)
secondary
c)
old field
d)
ecosystem
135.
What is the order of succession shown in this figure?
a)
A, B, C, D
b)
B, A, D, C
c)
C, D, A, B
d)
D, A, B, C
136.

What is the role of the pioneer species in Primary Succession?

a)

To kill any remaining organisms from before the disturbance

b)

To break down rock and rebuild soil

c)

To provide food for large animals

d)

To put fresh oxygen into the air

137.

After a volcanic eruption, lava covers the land. What is the order that plants grow to repopulate the area?

a)

Lichens → Shrubs → Grasses → Trees

b)

Lichens → tree → shrubs→Grasses

c)

Grasses → Lichens → Shrubs → Trees

d)

Lichens → Grasses → Shrubs → Trees

138.

When the Mount St. Helens volcano erupted, the blast covered much of the surrounding area with ash.


Based on the diagram above, which list shows the sequence of secondary succession that followed that eruption?

a)

X, Y, Z, W

b)

Z, X, Y, W

c)

W, Y, X, Z

d)

Z, Y, W, X

139.

Hydrothermal vents form deep in the ocean when iron-rich magma is released from openings on the seafloor. These vents spew extremely hot water (400°C) mixed with methane and sulfur. Bacteria that thrive in this hostile environment form the base of a food chain that leads to colonization by tube worms, mussels, and many other life-forms. When a hydrothermal vent becomes inactive and cold, the bacterial community


that lives in the hot fluid methane and sulfur dies out. Which organisms most likely succeed the original community in this ecosystem?

a)

Cold-tolerant bacteria that feed on sulfur and iron in the vents

b)

Giant kelp that use sulfur in photosynthesis

c)

Fish that do not need oxygen for cellular respiration

d)

Ocean mammals that tolerate cold and act as top predators in the food chain

140.
A relationship between two organisms in which one organism benefits and the other is unharmed...
a)
Mutualism 
b)
Competition
c)
Parasitsm 
d)
Commensalism 
141.
A relationship between two organisms in which both organisms benefit. 
a)
Mutualism 
b)
Competition
c)
Parasitsm 
d)
Commensalism 
142.
A bird makes a nest in a tree.  The bird gets a house, but the tree is unharmed.
a)
Commensalism
b)
Mutualism
c)
Parasitism
143.
A bear eats fish out of the river
a)
mutualism
b)
parasitism
c)
predator / prey
144.
Coyotes and Foxes both live in Maryland and both eat rabbits and mice
a)
Parasitism
b)
Commensalism
c)
Mutualism
d)
Competition
145.
Mistletoe extracts water and nutrients from a spruce tree. The spruce tree is harmed. 
a)
parasitism
b)
commensalism
c)
mutualism
146.
Two male Giraffes are fighting over the last green leaf of a tree that is dying.  
a)
Competition
b)
Mutualsim
c)
Predation
d)
Commensalism
147.
a relationship that occurs when two or more organims of the same species need the same resource at the same time
a)
competition
b)
symbiosis
c)
predation
148.
In a parasitic relationship, one organism is ___________ and one organism is benefiting. 
a)
helped
b)
harmed
c)
not effected
d)
happy
149.
In a mutual relationship, both organisms are ________________. 
a)
hurt
b)
not effected
c)
harmed
d)
benefiting 
150.
Commensalism is where one organism is benefiting and the other organism is _____________________. 
a)
not effected
b)
helped
c)
harmed
d)
hurt
151.
A tick is a parasite to a horse. Which statement best describes the relationship between the tick and the horse? 
a)
a.  The tick helps the horse get food. 
b)
a.  The tick harms the horse by feeding on its blood. 
c)
a.  The horse harms the tick by feeding on its blood. 
d)
The tick does not affect the horse. 
152.

The acacia ant nests and feeds in the plant’s hollow thorns. The ant helps protect the bullshorn acacia by attacking insects and grazing animals that come near the plant.


The relationship between the acacia ant and the bullshorn acacia is an example of which of the following?

a)

Commensalism

b)

Mutualism

c)

Neutralism

d)

Parasitism

153.

Which of these correctly describes the relationships between the organisms

a)

X: mutualism

Y: parasitism

Z: commensalism

b)

X: commensalism

Y: mutualism

Z: parasitism

c)

X: parasitism

Y: commensalism

Z: mutualism

d)

X: commensalism

Y: parasitism

Z: mutualism

154.

Parrotfish are herbivores that are found in coral reefs. To escape predation, a parrotfish will graze with a rabbitfish, which has venomous spines at the end of its pelvic fins. The rabbitfish does not benefit from this relationship.


Which type of relationship do the parrotfish and the rabbitfish have in the coral-reef environment?

a)

Commensulism

b)

Mutualism

c)

Predator-Prey

d)

Parasitism

155.

Based on the energy flow between trophic levels in an energy pyramid, how much energy would be expected to be found at the secondary consumer level in this pyramid?

a)

100 joules

b)

500 joules

c)

1,000 joules

d)

50 joules

156.

Which table correctly classifies these organisms?

a)
b)
c)
d)
157.

The brown tree snake is a nonnative species found on the South Pacific Island of Guam. The brown snake population in Guam is so large that it negatively effects the humans there.


Which statement best explains why the brown tree snake has flourished in Guam?

a)

There are no natural snake predators

b)

The climate is ideal for snake reproduction

c)

There are many animals for food

d)

D The vegetation provides good habitat for hunting.

158.

Which term best describes the interactions between the physical and living factors shown in the diagram?

a)

Ecosystem

b)

Biosphere

c)

Community

d)

Biome

159.

On March 24, 1989, an oil tanker ran aground on Bligh Reef in Prince William Sound, Alaska, and spilled millions of liters of crude oil. The graph shows pink salmon populations in Prince William Sound from 1970 to 1999.


What do these data suggest about the effect the oil spill had on pink salmon?

a)

Pink salmon were nearly eliminated after the oil spill.

b)

Pink salmon populations steadily declined in the 10 years following the spill.

c)

Pink salmon populations declined and never fully recovered.

d)

Pink salmon populations seemed to be minimally affected.

160.

Which structure composed mainly of proteins and lipids, aids in maintaining homeostasis in a cell?

a)

chromosome

b)

cell membrane

c)

centriole

d)

chloroplasts

161.

The correct order of stages in primary succession of a dry land environment can be illustrated by which of the following?

a)

bare soil, shrubs, hardwoods, pines

b)

shrubs, mosses, pines, grasses

c)

rock, grasses, hardwoods, shrubs

d)

rock, lichen, mosses, grasses

162.

The arrows in the diagrams represent the direction of movement of a certain type of molecule through the cell membrane of two different cells. The dots represent the relative concentrations of this molecule.


Which processes are illustrated in the diagrams?

Cell A is using energy to Pump the molecules out.

Cell B is gradually and naturally releasing the molecules

a)

Phagocytosis and diffusion

b)

Pinocytosis and osmosis

c)

Active transport and diffusion

d)

Dehydration synthesis and circulation

163.

If these organisms were arranged in a food pyramid which organism would have the LEAST amount of total energy available?

a)

bacteria

b)

insects

c)

coyote

d)

shrubs

164.

If these organisms were arranged in a food pyramid which organism would have the MOST amount of total energy available?

a)

bacteria

b)

insects

c)

coyote

d)

shrubs

165.

The concentration of chemical food contaminants is higher in birds of prey than in many of the individual organisms that they eat.


Which of the following statements best explains the reason for the higher concentration of food contaminants in birds of prey?

a)

Only birds of prey store chemical contaminants.

b)

Chemical contaminants are stored and magnified in organisms higher up the food chain.

c)

Birds of prey store more of the food they eat.

d)

Birds of prey catch animals with chemical contaminants more easily.

166.

Mrs. Dyda wants her class to prepare a procedure that would demonstrate cellular transport.


Which of the following procedures would best demonstrate cellular osmosis

a)

A procedure that uses a banana that has been left overnight in milk

b)

A procedure that uses skin of potato left overnight in oil.

c)

A procedure that uses a cluster of grapes left overnight in a high concentration of salt water.

d)

A procedure that uses a 2-liter bottle filled with oil and water.

167.

Which of the following biomolecules typically contains both carbon, nitrogen, and phosphate?

a)

Carbohydrate

b)

Lipid

c)

Protein

d)

Nucleic acid

168.

When a partially rotted log was turned over, fungi, termites, pill bugs, ants, slugs, and earthworms were found to be living in an around it. These organisms collectively represents a ---

a)

population

b)

species

c)

biosphere

d)

community

169.

Flammable materials, like alcohol, should never be dispensed or used near

a)

an open door

b)

an open flame

c)

another student

d)

a sink

170.
What organelle controls and regulates cellular activity?
a)
Ribosome
b)
Nucleus
c)
Mitochondria
d)
Lysosome 
171.
The major function of ribosomes is to
a)
Make fats
b)
Synthesize protein
c)
Digest protein
d)
Make sugars
172.
The ____________ packages and processes material before it exports out of the cell.
a)
Vacuoles
b)
mitochondria
c)
Golgi apparatus 
d)
nucleus 
173.
Which of the following is an enzyme filled organelle that breaks down waste in the cell?
a)
lysosomes
b)
chloroplast
c)
mitochondria 
d)
Golgi apparatus 
174.
Select the statement that best describes the function of the cell wall.
a)
It gives structural support to plant cells.
b)
Its jelly-like fluid surrounds the nucleus and most of the cell’s internal parts.
c)
It contains the cell’s nuclear material. 
d)
It produces food from sunlight. 
175.
What am I?       I'm a real "powerhouse". I break down glucose to make ATP.  
a)
Cell membrane 
b)
ribosome
c)
mitochondria
d)
lysosome
176.
What is the name and function of the organelle displayed above?
a)
Mitochondria: breakdown glucose and produce ATP
b)
Chloroplast: converts solar energy into chemical energy
c)
Vacuole: Stores H2O, salt, food
d)
Nucleus: stores genetic information
177.
Which structure would be found in a grass cell but NOT on your cell?
a)
cell wall
b)
nucleus
c)
mitochondria 
d)
vacuoles 
178.
Rough endoplasmic reticulum has ________________ attached to it. 
a)
ribosomes 
b)
chromosomes 
c)
Golgi apparatus 
d)
nucleolus 
179.
What is the function of vacuoles?  
a)
make protein
b)
store genetic information
c)
storage of salt, H2O, food, and waste
d)
transports material outside the cell
180.
Which of these statements best describes the function of the cell membrane?
a)
It allows things to freely enter and exit the cell
b)
it controls which substances enter and exit the cell
c)
it prevents substances from entering the cell
d)
it prevents substances from leaving the cell
181.
The arrow is point to the 
a)
mitochondria 
b)
Cell membrane 
c)
nucleus 
d)
ribosome
182.

Which cell organelle is most directly involved with producing energy for the cell?

a)

ribosomes

b)

endoplasmic reticulum

c)

cell wall

d)

mitochondria

183.

In a laboratory, which of the following should NOT be worn?

a)

Sandals

b)

Dangling jewelry

c)

Closed toe shoes

d)

Loose clothing

184.

In a laboratory, which of the following should be worn?

a)

Sandals

b)

Dangling jewelry

c)

Closed toe shoes

d)

Loose clothing

185.

The diagram shown represents the nitrogen cycle.


Which letter in the diagram indicates the activity of bacteria of decay?

a)

W

b)

X

c)

Y

d)

Z

186.

A student wants to complete a lab investigation, before the student can begin he/she must

a)

eat something in the lab

b)

put on their goggles and apron

c)

locate the nearest fire blanket

d)

begin picking up beakers and other materials

187.

Two different species with the same ecological niche are placed in the same habitat. These two species will most likely-------

a)

Have different food requirements

b)

Coexist successfully in the same habitat

c)

Compete for the same environmental resources

d)

Interbreed and produce hybrid offspring

188.

If you do not understand a direction of part of a lab procedure, you should

a)

Ask the instructor before proceeding

b)

Skip it and go to the next part

c)

Try several methods until something works

d)

Figure it out as you do the lab

189.

Which of the following correctly states the precaution you should take when working in the laboratory?

a)

Never used chip or cracked glassware

b)

Never wash your hands before and after dissecting

c)

When fire erupts use a beaker of water to extinguish

d)

Proceed with a lab investigation without permission from your lab instructor

190.

Which of the following correctly describes how a diagram of cellular respiration would differ from a diagram of photosynthesis?

a)

The cellular-respiration diagram would show glucose sugar as the main source of energy.

b)

The cellular-respiration diagram would show energy stored in large protein molecules.

c)

The cellular-respiration diagram would show water as the main source of chemical energy.

d)

The cellular-respiration diagram would show electromagnetic waves as the final product.

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