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Semester 1 Practice Quiz

Total questions: 79

Worksheet time: 1hrs 28mins

Name
Class
Date
1.

What is the primary source of energy for the food web?

4 lines
2.

What happens to the amount of energy as it moves through each trophic level?

4 lines
3.

Why is it not possible to have unlimited Top Carnivores?

4 lines
4.

Due to warmer water temperature, kelp populations have decreased. Predict what will happen to the carrying capacity of this ecosystem and explain why.

4 lines
5.

Using information from Figure 1, describe the growth of each species while grown alone. a. Species 1 - b. Species 2 -

4 lines
6.

How does the cell membrane help the cell maintain homeostasis?

4 lines
7.

What does “selectively permeable” mean?

4 lines
8.

Lactic acid is a wasteful product produced in the cytoplasm of muscle cells. Lactic acid will move (a)   the cell.

9.

What is the role of proteins in the cell membrane?

4 lines
10.

Describe the general reaction that occurs during cellular respiration.

4 lines
11.

The reintroduction of wolves led to a decrease in biodiversity in Yellowstone National Park.

a)

True

b)

False

12.

Describe what would happen to a cell in the following situations: Cell surrounded by an environment with equal solute concentration to the internal environment -

(a)  

13.

Name 4 ways in which carbon is moved into the atmosphere.

4 lines
14.

Match the function to each organelle by placing the letter on the blank. Lysosome: Removes wastes from the cell by using digestive enzymes.

(a)  

15.

Match the function to each organelle by placing the letter on the blank. Golgi apparatus: Collects, modifies, & packages molecules such as proteins.

(a)  

16.

What molecule is pictured?

a)

Integral Protein

b)

Carbohydrate chain

c)

Phospholipid

17.

Where would you most likely find water molecules?

a)

A only

b)

B only

c)

C only

d)

A and C

18.
Identify the part of the membrane identified as A.
a)
carbohydrate
b)
cholesterol
c)
protein
d)
phospholipid
19.
The _____ in the plasma membrane prevents the fatty acids tails from sticking together and not moving too far apart or too close to each other.
a)
carbohydrate chains
b)
cholesterol
c)
proteins
d)
lipids
20.
Hydrophobic region of the cell membrane?
a)
E
b)
B
c)
C
d)
A 
21.

This image is an example of a phospholipid. Which part of a phospholipid is HYDROPHOBIC?

a)

the phosphate "head"

b)

the lipid "tails"

22.

Where can PROTEINS be found when part of a plasma membrane?

a)

On the outside of the membrane

b)

On the inside of the membrane

c)

Embedded part of the way into the membrane

d)

Embedded the whole way through the membrane

e)

All of the above

23.
The molecule responsible for increasing the fluidity of the membrane are:
a)
Glycolipids
b)
Glycoproteins
c)
Cholesterols
d)
Aquaporins
24.

Hydrophilic region of the cell membrane?

a)
E
b)
B
c)
C
d)
A 
25.

identify a glycolipid

a)

structure a

b)

structure d

c)

structure e

d)

structure g

26.

Selectively Permeable

a)

Only Large Molecules can get through the membrane

b)

Charged Molecules can get through the membrane

c)

Only Small Molecules can get through the membrane

d)

No molecules can get through the membrane

27.

Name the correct trophic level for level 1.

a)

Tertiary

b)

Consumer

c)

Producer

d)

Quatemary

28.

Name the trophic level in Level 2.

a)

Primary

b)

Tertiary

c)

Consumer

d)

Secondary

29.
Autotrophs make up the _______ trophic level in all ecosystems.
a)
First
b)
Second
c)
Third
d)
Fourth
30.
In the energy pyramid here, which organisms have the most energy available?
a)
Producers
b)
Carnivores
c)
Herbivores
d)
Top Predator
31.
An energy pyramid represents what?
a)
How much sunlight is available for the ecosystem to use. 
b)
How much energy a particular organism needs. 
c)
How much energy is needed to build a pyramid. 
d)
The amount of energy available to the next 'feeder' in a food web.
32.

A carnivore obtains energy by eating other animals. Which of the following shows the process by which energy flows to a carnivorous animal?

a)

light energy → plant → carnivore

b)

plant → light energy → carnivore

c)

light energy → herbivore → carnivore

d)

light energy → plant → herbivore → carnivore

33.

In the energy pyramid below, which organism has the least amount of energy available?

a)

Producers

b)

Herbivores

c)

Carnivores

d)

Top Predator

34.

The diagram below represents four trophic levels in an ecosystem. Which explanation best explains how energy passes through the trophic levels?

a)

Energy flows through all the trophic levels and then back to the producers.

b)

Most of the energy from the plants is transferred to the mice, grasshoppers, and rabbits because plants don't have to search for their food.

c)

About ten percent of the energy at one trophic level is passed to the next trophic level.

d)

Birds have the most energy because energy from all the other trophic levels flows to the birds.

35.
Which organism recieves the least amount of energy from the producer?
a)
Owl
b)
Grasshopper
c)
Lilypad
d)
Mouse
36.

In the energy pyramid below, which organism has the most amount of energy available?

a)

Producers

b)

Herbivores

c)

Carnivores

d)

Top Predator

37.
Which organism receives the least amount of energy from the producer?
a)
The squirrel
b)
The shrew
c)
The deer
d)
The rabbit
38.

Think about how energy decreases as we go higher up in the energy pyramid. Why do you think there can't be more trophic levels above the hawk?

4 lines
39.

Energy for this ecosystem originally comes from

a)

water

b)

consumers

c)

sunlight

d)

plants

40.

Isla is studying an energy pyramid in her biology class. In the energy pyramid below, which organism has the least amount of energy available?

a)

Producers

b)

Herbivores

c)

Carnivores

d)

Top Predator

41.
What cycle is demonstrated in the diagram?
a)
The Carbon cycle
b)
The Water cycle
c)
The Nitrogen cycle
d)
The Life cycle
42.

12D: Students designed an experiment to model the carbon cycle. The students combined water and carbon dioxide-producing disks in a sealed flask. The flask represented Earth’s atmosphere, and the lamp represented the sun. Their design is shown. Which component can be added to the flask to reduce the concentration of carbon dioxide in the model atmosphere created by the disks?

a)

Bacteria to use carbon during nitrification

b)

Plants to absorb carbon in the process of photosynthesis

c)

Snails to use carbon through cellular respiration

d)

Mushrooms to absorb carbon during decomposition

43.
Organisms require nitrogen to make which of the following?
a)
glucose and starch
b)
lipids and nucleic acids
c)
proteins and nucleic acids
d)
carbohydrates and proteins
44.

Which of the following will DECREASE the amount of carbon dioxide in the atmosphere?

a)

Combustion of fossil fuels

b)

Respiration

c)

Photosynthesis

d)

Decomposition

45.

Which type of organisms are responsible for turning nitrogen gas into a form useable by other organisms?

a)

Animals

b)

Plantae

c)

Fungi

d)

Bacteria

46.

Animals inhale oxygen and exhale....

a)

CH4CH_4  

b)

CO2CO_2  

c)

NH3NH_3  

d)

N2ON_2O  

47.

In order to be considered organic, a compound must contain...

a)

Hydrogen

b)

Carbon

c)

Nitrogen

d)

Phosphorus

48.
What are the products of cellular respiration? 
a)
energy 
b)
carbon dioxide 
c)
water vapor 
d)
all of the other three 
49.
What is the purpose of cellular respiration?
a)
to break down food
b)
to create energy in the body
c)
to release energy from food
d)
there is none; it's a waste of time
50.
Cellular respiration takes place in the
a)
nucleus
b)
cytoplasm
c)
ribosomes
d)
mitochondria
51.
What is the purpose of cellular respiration?
a)
To turn energy from the sun into glucose
b)
To turn oxygen into glucose
c)
To turn ATP into glucose
d)
To turn glucose into energy in the form of ATP
52.

What type of Energy does Cellular Respiration create?

a)

ATP

b)

Water

c)

Carbon Dioxide

d)

Oxygen

53.
This is a balance that organisms maintain through self-regulating adjustments
a)
bilayer
b)
homeostasis
c)
secretions
54.
Cells can function
a)
at any temperature and pH.
b)
only in a narrow range of temperature and pH.
c)
in rapidly changing temperatures and pHs.
d)
in a wide range of pHs and temperatures.
55.

Explain how the structure of the cell membrane contributes to its function.

a)

The cell membrane is rigid, providing structural support.

b)

The cell membrane is composed of a phospholipid bilayer with embedded proteins, allowing selective permeability.

c)

The cell membrane is made of cellulose, providing a barrier to all substances.

d)

The cell membrane is a single layer of lipids, allowing free passage of all molecules.

56.

Which process in the carbon cycle involves the conversion of carbon dioxide into organic compounds by plants?

a)

Respiration

b)

Combustion

c)

Photosynthesis

d)

Decomposition

57.

In a food web, which type of organism is typically at the base of the energy pyramid?

a)

Decomposers

b)

Herbivores

c)

Carnivores

d)

Producers

58.

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

a)

To produce oxygen

b)

To fix nitrogen gas into a usable form

c)

To decompose organic matter

d)

To absorb carbon dioxide

59.
A process where one cell forms two identical daughter cells is called...
a)
cell cycle
b)
cell division (mitosis)
c)
interphase
d)
cytokinesis
60.
A process where one cell forms two identical daughter cells is called...
a)
cell cycle
b)
cell division (mitosis)
c)
interphase
d)
cytokinesis
61.
The cell cycle is ______________.
a)
the process of cells circling throughout the body
b)
the process of splitting the organelles
c)
a process where one cell gets energy
d)
the sequence of stages of growth and division that a cell undergoes
62.
During interphase the cell ___________.
a)
divides into two cells
b)
divides its nucleus
c)
replicates its DNA
d)
replicates the organelles within the cell
63.
What does DNA stand for?
a)
DeNatured Acid
b)
DomiNant Acid
c)
DeoxyriboNucleic Acid
d)
DiriboNucleic Acid
64.
Replication is when __________.
a)
the cell makes a copy of its DNA in nucleus 
b)
the cell forms 2 identical cells
c)
the cell produces 2 sets of organelles
d)
the cell continues to complete the same function
65.
Where does replication occur within the cell?
a)
in the cytoplasm
b)
in the nucleus 
c)
in the ribosome
d)
in the chromatin
66.
After interphase is completed the cell moves into the next stage of the cell cycle called _________.
a)
anaphase
b)
cytokinesis
c)
metaphase
d)
mitosis
67.
Mitosis is made up of how many phases?
a)
4
b)
5
c)
6
d)
7
68.
The genetic material that has the instructions for how the cell is to be run is called the _________.
a)
nucleus
b)
chromatin
c)
chromatid
d)
carbohydrate
69.
What is one half or one rod of the condensed chromatin called?
a)
DNA
b)
chromatin
c)
chromatid
d)
chromosome
70.
What is the  two daughter strands of replicated chromatin that are condensed into two rod shaped structures and connected by a centromere called?
a)
DNA
b)
chromatin
c)
chromatid
d)
chromosome
71.
The following describes __________ during mitosis. The chromatin condenses and spindle fibers form at each side of the cell. The nuclear membrane breaks apart.
a)
prophase
b)
metaphase
c)
anaphase
d)
telophase
72.
The following describes ________  during mitosis. The chromosomes line up along the center of the cell and the spindle fibers attach to each chromosome at the centromere.
a)
prophase
b)
metaphase
c)
anaphase
d)
telophase
73.
The following describes _________ during mitosis. The spindle fiber splits the centromere and the chromatids move to opposite sides of the cell.
a)
prophase
b)
metaphase
c)
anaphase
d)
telophase
74.
What is the correct term for "the sequence of stages of growth and division that a cell undergoes"?
a)
cell
b)
cell cycle
c)
cell plate
d)
centriole
75.
What is the correct term for "the basic building block of all living organisms"?
a)
cell
b)
cell cycle
c)
cell plate
d)
centriole
76.
What is the correct term for "form during prophase of mitosis and attach to chromosomes at the centromere to pull them apart during cell division"?
a)
centriole
b)
nucleus
c)
spindle fibers
d)
cytokinesis
77.

The following describes _________ during mitosis. Two new nuclei form, chromosomes are no longer visible, and the spindle fibers disappear.

a)

prophase

b)

metaphase

c)

anaphase

d)

telophase

78.

The cell spends most of it's life in...

a)

interphase

b)

G2

c)

cytokinesis

d)

metaphase

79.

Last stage of the cell cycle in which the cytoplasm divides to form two identical cells.

a)

interphase

b)

cytokinesis

c)

prophase

d)

telophase

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