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WorksheetsLiving Environment Midterm 2022
Total questions: 88
Worksheet time: 1hrs 8mins
Name
Class
Date
1.
When preparing a wet mount slide, the cover slip is placed at a 45 degree angle. This is to:
a)
not break the slide
b)
reduce the amount of air bubbles
c)
kill the organisms on the slide
d)
prevent bacteria from getting on the slide
2.
To add a stain to a slide, a paper towel was placed at one end of the cover slip on the slide while the stain was added to the other end. This procedure was used to:
a)
add the stain without removing the coverslip
b)
change the color of the slide
c)
remove the speciment from the slide
d)
reduce air bubbles
3.
To bring the specimen into sharp focus on high power, use the:
a)
Coarse Adjustment Knob
b)
Fine Adjustment Knob
c)
Eyepiece
d)
Diaphragm
4.
Identify this structure.
a)
cell wall
b)
cell membrane
c)
sap vacuole
d)
cytoplasm
5.
Which organelle, in both plants and animals, converts the energy in food into energy for the cell (cellular respiration)?
a)
Ribosomes
b)
Nucleolus
c)
Mitochondria
d)
Golgi Body
6.
What is a sac-like structure used to store water and nutrients? These are much larger in plant cells?
a)
Lysosomes
b)
Mitochondria
c)
Vacuoles
d)
Golgi Body
7.
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
8.
ALL living cells have these in common
a)
Nucleus and cell wall
b)
Cell Membrane and cytoplasm
c)
Cell Wall and chloroplasts
d)
Mitochondria and chloroplasts
9.
Burning nutrients for energy (in the form of ATP); the release of energy (ATP) from food (simple sugars) occurs in the mitochondria of both plants and animals. This process is called:
a)
vacuole
b)
cyclosis
c)
respiration
d)
DNA
10.
What is the control center in a cell that contains all hereditary factors (DNA)?
a)
mitochondria
b)
DNA
c)
nucleus
d)
movement
11.
Amoeba have cell membranes but not cell walls. The function of the cell membrane of protists (like the amoeba), as well as all plants and animals, is:
a)
to destroy anything trying to enter the cell
b)
be selectively permeable, only allowing certain substances into and out of the cell
c)
to be composed of a double layer of proteins with carbohydrates
d)
to allow everything into the cell
12.
Which structures are listed in order from the least complex to the most complex? (This question is always on the Regents in some form - it is asking about complexity - organism, organ systems, organs, tissues, cells, organelles.) Hint: always pay attention to if they are asking for least to most or most to least complex!
a)
plant cell, leaf, chloroplast, rose bush
b)
chloroplast, plant cell, leaf, rose bush
c)
chloroplast, leaf, plant cell, rose bush
d)
rose bush, leaf, plant cell, chloroplast
13.
Some cells, such as human nerve and muscle cells, contain many more mitochondria than do other cells, such as skin cells. Why do some cells have more mitochondria than others?
a)
The cells use more energy.
b)
The cells store more nutrients.
c)
The cells degrade more proteins.
d)
The cells divide more frequently.
14.
Which organelle is correctly paired with its specific function?
a)
cell membrane—storage of hereditary information
b)
chloroplast—transport of materials
c)
ribosome—synthesis of proteins
d)
vacuole—production of ATP
15.
Experiment: How does adding cardio to one’s daily schedule affect their heart rate?
The heart rate is the ________________ variable.
The heart rate is the ________________ variable.
a)
independent
b)
dependent
16.
Should experiments be repeated over and over to see if the results are the same each time?
a)
yes
b)
no
17.
Volume?
a)
63.5 mL
b)
63 mL
c)
63.55 mL
d)
6 mL
18.
This part of the experiment serves as a basis of comparison; the one variable being tested has been omitted.
a)
experimental group
b)
control group
c)
data
d)
variables
19.
This variable in an experiment is the one being deliberately changed by the scientist.
a)
dependent variable
b)
independent variable
c)
data
d)
control group
20.
Enzymes are considered to be which of the following?
a)
Lipids
b)
Carbohydrates
c)
Proteins
d)
Nucleic Acids
21.
Starches are considered to be which of the following?
a)
Lipids
b)
Carbohydrates
c)
Proteins
d)
Nucleic Acids
22.
Fats are considered to be which of the following?
a)
Lipids
b)
Carbohydrates
c)
Proteins
d)
Nucleic Acids
23.
Which of the following conclusions can be drawn from this graph?
a)
The optimum pH of the enzyme is 6.6.
b)
The optimum pH of the enzyme is 5.8
c)
The enzyme’s activity increases as pH increases 5.0 to 9.0
d)
The enzyme’s activity is greater around pH of 8.0 .
24.
What makes an enzyme substrate specific?
a)
Size
b)
Shape
c)
Name
d)
Location it is found in
25.
Which of these is NOT true.
a)
Enzymes can denature (change shape) when the temperature gets too high.
b)
Enzymes can only be used once in a chemical reaction.
c)
Enzymes can denature when the pH changes.
d)
Enzymes speed up chemical reactions.
26.
Letter B is the:
a)
active site
b)
enzyme
c)
substrate
d)
products
27.
Letter D is the:
a)
active site
b)
enzyme
c)
substrate
d)
products
28.
If letter A is an enzyme, letter E are:
a)
amino acids
b)
simple sugars
c)
fatty acids
d)
vitamins
29.
If letter A is a starch molecule, letter E are:
a)
amino acids
b)
simple sugars
c)
fatty acids
d)
vitamins
30.
If letter A is a protein molecule, letter E are:
a)
amino acids
b)
simple sugars
c)
fatty acids
d)
vitamins
31.
Enzymes are composed of which of the following monomers?
a)
amino acids
b)
carbohydrates
c)
nucleotides
d)
monosaccharides
32.
Each enzyme (catalyst) only has 1 substrate that will fit its active site. Why is this?
a)
Because enzymes are not reusable.
b)
Because enzymes are carbohydrates.
c)
Because enzymes have a specific shape.
d)
Because enzymes are fragile.
33.
Butter bean seeds were placed in petri dishes lined with moist paper towel for 5 days at different temperatures & germination was measured. Which of the following is the independent variable?
a)
Number of seeds
b)
Time
c)
Temperature
d)
Type of seed
34.
What is diffusion?
a)
when molecules move
b)
when molecules move from a high concentration to a low.
c)
no movement
d)
molecules move everywhere
35.
The picture below is an example of _________________.
a)
osmosis
b)
isotonic
c)
diffusion
d)
active transport
36.
The life process synthesis is when
a)
Organic molecules are broken down to simpler molecules
b)
Simple molecules are made into larger molecules
37.
The life process of synthesis is illustrated by which of the following?
a)
Protein is made by amino acids bonded together by peptide bonds
b)
Starch is made by glucose molecules bonded together
c)
Enzymes are made by amino acids bonded together by peptide bonds
d)
All of the above
38.
The life function regulation can best be defined as:
a)
an organisms balance being offset
b)
burning food to provide energy for an organism
c)
reproduction of cells in a prokaryotic organism
d)
control of physiological activities necessary to maintain homeostasis in an organism
39.
What are tiny organelles that convert glucose into ATP by the process of aerobic respiration (pay attention to what the organelle looks like!!)?
a)
Ribosomes
b)
Vesicles
c)
Cytoskeleton
d)
Mitochondria
40.
What cell structure is represented by te diagram?
a)
cell membrane (plasma membrane)
b)
nucleus
c)
cell wall
d)
vacuole
41.
What type of transport is this?
a)
Endocytosis
b)
Diffusion
c)
Active Transport
d)
Osmosis
42.
In a controlled experiment, all factors have to be kept the same except the :
a)
dependent variable
b)
independent variable
43.
Which molecule is too large to cross the cell membrane?
a)
water
b)
glucose
c)
O2
d)
starch
44.
The diagram shows various molecules that move into and out of the cell. How does molecule C move out the cell?
a)
Active Transport
b)
Diffusion
c)
The use of a protein pump
d)
Manipulated osmosis
45.
In order to see nuclei and nucleoli better in human cells or other clear cells, one could use:
a)
Methylene blue
b)
Bromthymol blue
c)
Benedicts solution
d)
Chloroform solution
46.
What are the two parts of an ecosystem?
a)
water and sunlight
b)
all living and nonliving organisms
c)
producers and consumers
d)
soil and nutrients
47.
What is a niche?
a)
the place where a species lives
b)
what a species eats
c)
the role of a species
d)
how a species uses resources
48.
What do consumers give off that producers need?
a)
oxygen
b)
carbon dioxide
c)
sugars
d)
heat
49.
A food web
a)
shows how energy is released by an organism
b)
compares the amount of energy at each level
c)
shows how different food chains in a community are linked together
d)
is unique since each organism can only be part of one food web
50.
A food chain is a diagram of how
a)
communities are connected
b)
energy and nutrients pass among organisms in an ecosystem
c)
producers make food
d)
an ecosystem develops and changes
51.
An organism that uses what scavengers leave behind is a
a)
herbivore
b)
carnivore
c)
decomposer
d)
omnivore
52.
Consumers cannot do which of the following
a)
give off carbon dioxide
b)
change sugars into energy
c)
give off oxygen
d)
carry out respiration
53.
In an energy pyramid,
a)
the organisms in each level eat those in the level below them
b)
the amount of energy increases as you move up each level
c)
producers are at the top
d)
the smallest organisms are at the top
54.
An individual belonging to a specific species
a)
Biotic
b)
Community
c)
Organism
d)
Reptile
55.
The living part of an ecosystem
a)
Biotic
b)
Abiotic
c)
Mother Earth
d)
Flowers
56.
Organisms that look similar and can produce fertile offspring
a)
Species
b)
Fish
c)
Community
d)
Trees
57.
Two or more members of a particular species living and interacting in the same area
a)
Community
b)
Population
c)
Organisms
d)
Biosphere
58.
Different populations living and interacting with each other in the same area
a)
Biome
b)
Ecosystem
c)
Community
d)
Niche
59.
Organisms that obtains its energy from abiotic sources, such as sunlight or inorganic chemicals
a)
Autotroph
b)
Heterotroph
c)
Omnivore
d)
Carnivore
60.
Temperature, light, air, water, and soil are all _____ parts of the environment
a)
alive
b)
biotic
c)
abiotic
d)
living
61.
An animal that eats only plants.
a)
scavenger
b)
omnivore
c)
herbivore
d)
carnivore
62.
A relationship where both organisms benefit is called __________.
a)
mutualism
b)
commensalism
c)
parasitism
63.
A relationship where one organism benefits and one organism is harmed is called __________.
a)
mutualism
b)
commensalism
c)
parasitism
64.
A relationship where one organism benefits and one organism is unaffected is called __________.
a)
mutualism
b)
commensalism
c)
parasitism
65.
Organisms that hunt other organisms for food are called __________.
a)
predators
b)
prey
c)
producers
d)
heterotrophs
66.
An invasive species
a)
Emerald Ash Borer
b)
Elodea
c)
Ash Tree
d)
Eastern Bluebird
67.
The cause behind all other environmental problems is:
a)
Carbon Dioxide Emissions
b)
Human Population growth
c)
non-point source pollution
d)
Dexter's belly rubs
68.
New fuels are being produced by converting corn and grasses into compounds containing alcohols that can be broken down for energy in various engines. The purpose of this research is to
a)
reduce the use of nonrenewable resources.
b)
increase the rate of air pollution.
c)
reduce the rate of homeostasis in organisms.
d)
cause a loss of biodiversity in the rain forests.
69.
When fertilizers run off farmland into streams and ponds, the nitrogen content of the water increases. This can lead to rapid growth of algae in a process called eutrophication. How can this process affect other organisms in the water?
a)
Oxygen is used up as algae is decomposed, reducing the amount available to other organisms.
b)
The water becomes better able to support aerobic organisms.
c)
The algae provide food for fishes and other organisms, leading to decreased algae populations.
d)
The extra nitrogen provides additional food for the other organisms, increasing their population.
70.
A strip mining company wants to lease some land that is currently part of a national park. They promise to reclaim the land should any minerals be mined from the area, and they are willing to pay top dollar for the rights. As an ecologist, what factors would you raise with the local government?
a)
the threat to local biodiversity
b)
management of the land after the company leaves
c)
the new jobs that would be created
d)
the increased traffic in the area
71.
The diagram shows the carbon cycle. If many trees are removed from a forest by logging, what is the most immediate effect on the carbon cycle in that forest?
a)
increase in the rates of decomposition
b)
increase in the rates of atmospheric carbon dioxide
c)
decreased combustion of fossil fuel
d)
increase production of organic compounds
72.
1. What are renewable resources?
a)
. Resources that are used faster than they form
b)
resources that can replenish themselves over time
c)
resources that formed over millions of years
d)
resources that exist only in rural areas
73.
1. What would Earth be like without the greenhouse effect?
a)
The same temperature
b)
a little cooler than it is now
c)
. Too cold to live
d)
a little warmer than it is now
74.
1. Which level of the food chain is most affected by biomagnifications?
a)
Producers
b)
primary consumers
c)
secondary consumers
d)
tertiary consumers
75.
1. Which biome has the highest biodiversity and is the most threatened?
a)
Temperate forests
b)
grasslands
c)
tropical rain forests
d)
deserts
76.
1. Why is firewood considered to be a renewable resource?
a)
It can be replenished over time.
b)
It is used up faster than it can form.
c)
It is made from coal.
d)
It can be made synthetically.
77.
1. Why has Earth's human carrying capacity increased greatly?
a)
Other organisms have been displaced by agriculture, so there is more space for humans.
b)
Humans have modified their environment due to technological advances.
c)
Humans can live closer together than other animals
d)
Humans are now eating fewer plants than they used to.
78.
1. Which of the following is not a renewable resource?
a)
coal
b)
wind energy
c)
solar energy
d)
water
79.
1. What factor does not determine the size of an individual's ecological footprint?
a)
amount and efficiency of resource use
b)
amount of waste produced
c)
size of population
d)
toxicity of waste produced
80.
Which member of the following food chain is most likely to be affected by mercury, a pollutant? Algae - zooplankton - salmon – bear
a)
algae
b)
salmon
c)
zooplankton
d)
bear
81.
How might an introduced plant species kill native plant species?
a)
. Its rapid growth can deprive native plants of sunlight.
b)
Its rapid growth can deprive native plants of food.
c)
It can cause soil loss from erosion.
d)
Its rapid growth can deprive native plants of oxygen.
82.
1. What is one of the greatest threats to biodiversity on Earth?
a)
habitat destruction
b)
loss of drinking water
c)
decrease in food supply
d)
pollution
83.
1. Why might an introduced animal species overrun native species in an ecosystem?
a)
. Its population size is smaller than those of native species.
b)
. It is more energy efficient, so it eats less food.
c)
It is a predator of the native species.
d)
It often has no natural enemies
84.
An area of land where all the water flows to one location, like a funnel.
a)
Superfund Site
b)
Watershed
c)
Succession
d)
River
85.
The type of ____________ helps us measure water quality.
a)
Macroinvertebrate
b)
Microinvertebrate
c)
Watershed
d)
Succession
86.
The first species to move into a forming ecosystem. Mosses and small grasses are examples.
a)
Pioneer
b)
Opportunistic
c)
Climax community
d)
Primary
87.
_______________ succession occurs after a catastrophic event destroys an area.
a)
Primary
b)
Opportunistic
c)
Climax
d)
Secondary
88.
Final stage of succession
a)
Climax community
b)
Terminal Community
c)
Secondary community
d)
End phase
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