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Unit 4 - Cell Energy

Total questions: 63

Worksheet time: 3hrs 9mins

Name
Class
Date
1.

What is the first source of energy for living things?

a)

food

b)

glucose

c)

the sun

d)

water

2.

What are the inputs (reactants) of photosynthesis?

a)

glucose and oxygen

b)

glucose and carbon dioxide

c)

carbon dioxide and oxygen

d)

carbon dioxide and water

3.

Where does photosynthesis take place?

a)

mitochondria

b)

nucleus

c)

chloroplast

d)

ribosome

4.

What is the main pigment in plants?

a)

chlorophyll

b)

glucose

c)

oxygen

d)

carotene

5.

What are the outputs (products) of photosynthesis?

a)

carbon dioxide and water

b)

glucose and oxygen

c)

glucose and carbon dioxide

d)

water and oxygen

6.

What organisms do photosynthesis?

a)

animals

b)

plants

c)

plants and animals

d)

all living things

7.

What are the inputs (reactants) of cellular respiration?

a)

carbon dioxide and water

b)

glucose and water

c)

carbon dioxide and oxygen

d)

glucose and oxygen

8.

Where does cellular respiration take place?

a)

chloroplast

b)

lungs

c)

mitochondria

d)

nucleus

9.

What are the outputs (products) of cellular respiration?

a)

glucose, oxygen, and energy

b)

carbon dioxide, water, and energy

c)

water, oxygen, and glucose

d)

water and energy

10.

What organisms use cellular respiration to get energy?

a)

animals only

b)

plants only

c)

heterotrophs only

d)

plants and animals

11.

What is an autotroph?

a)

an organism that can makes its own food

b)

an organism that needs to consume food

c)

an organism that has absorbs food by diffusion

d)

all living organisms

12.

What is a heterotroph?

a)

an organism that absorbs food by diffusion

b)

an organism that uses photosynthesis to make its food

c)

an organism that needs to consume food for energy

d)

all plants

13.

What is the purpose of photosynthesis?

a)

to make more plants

b)

to convert sunlight to glucose

c)

to convert glucose to usable energy

d)

to change colors of leaves in the fall

14.

What is the purpose of cellular respiration?

a)

to convert sunlight to glucose

b)

to breathe in oxygen and breathe out carbon dioxide

c)

to have cells grow and develop

d)

to convert glucose to usable energy

15.
What would stop photosynthesis from occuring?
a)
a very sunny day
b)
not enough carbon dioxide
c)
having too much water
d)
having excess ATP
16.
Anaerobic cellular respiration occurs when not enough energy is made with the amount of oxygen available.
a)
True
b)
False
17.
The main form of energy for a cell is
a)
sugar
b)
candy
c)
ATP
d)
GTP
18.
If your body needed to do anaerobic respiration what would be the side effect?
a)
extra energy
b)
lucid muscles
c)
build up of lactic acid
d)
Constant hunger
19.
What term means without oxygen?
a)
aerobic
b)
hydrophobic
c)
anaerobic
d)
hydrophillic
20.

What is the formula for photosynthesis?

a)

C6H12O6 + O2 --> CO2 + H2O + sunlight

b)

Sunlight + Oxygen --> Glucose + Sunlight

c)

CO2 + H2O + sunlight ----> C6H12O6 + O2

21.

Photosynthesis produces ____________ where as cellular respiration produces _________.

a)

Glucose; ATP

b)

ATP; Sunlight

22.

How are the photosynthesis and cellular respiration related?

a)

The products of photosynthesis are the reactants of cellular respiration.

b)

The reactants of photosynthesis are the reactants of cellular respiration.

c)

The products of cellular respiration are the products of photosynthesis.

23.

Which statement explains how autotrophs are dependent upon heterotrophs for their survival?

a)

Heterotrophs supply oxygen for autotrophs to undergo aerobic respiration.

b)

Heterotrophs produce carbon dioxide for autotrophs to use during photosynthesis.

c)

Heterotrophs provide chemical energy needed by autotrophs for cellular respiration.

d)

Heterotrophs make lactic acid that autotrophs use in photosynthesis.

24.

Look at the diagram to above to pick the correct answers below..

a)

Organelle 1 is a chloroplast and the site of cellular respiration.

b)

Organelle 1 is a chloroplast and the site of photosynthesis.

c)

Organelle 2 is a mitochondrion and the site of cellular respiration.

d)

Organelle 2 is a mitochondrion and the site of photosynthesis.

25.
Where is the energy stored in ATP molecules
a)
In the Ribose Sugar
b)
In the Adenine group
c)
In the Phosphate bonds
d)
In the Bank
26.
Which of the following results in the storage of energy in terms of the ATP/ADP cycle?
a)
The breaking of the bond between the 5-carbon sugar and the 1st phosphate group
b)
The addition of a phosphate group
c)
The removal of a phosphate group
d)
The addition of glucose 
27.
Which bond of the ATP molecule is broken in order to release energy?
a)
A
b)
B
c)
C
d)
D
28.
Which cellular organelle is responsible for manufacturing ATP?
a)
Ribosome
b)
Nucleus
c)
Mitochondria
d)
Chloroplast
29.
Energy is released from ATP when
a)
a phosphate group is added
b)
adenine bonds to ribose
c)
ATP is exposed to sunlight
d)
a phosphate group is removed
30.
Which choice correctly shows the gases that enter and exit plants during photosynthesis?
a)
Enter: Oxygen
Exit: Carbon dioxide
b)
Enter: Water vapor
Exit: Glucose
c)
Enter: Carbon dioxide
Exit: Oxygen
d)
Enter: Light
Exit: Water vapor
31.

Where does photosynthesis primarily occur in a plant?

a)

Stem

b)

Root

c)

Leaf

d)

Flower

32.

Which of these are limiting factors for photosynthesis? Choose 3 answers.

a)

Light intensity

b)

CO2 concentration

c)

Temperature

d)

Light

e)

CO2 low levels

33.
Where do the light reactions happen?
a)
mitochondria membrane
b)
thylakoid membrane
c)
stroma
d)
central vacuole
34.

The Calvin Cycle occurs in the

a)

Thylakoid

b)

Grana

c)

Inner membrane of chloroplast

d)

Stroma

35.

Main products of the Calvin Cycle

a)

Oxygen, NADP+, ADP

b)

Glucose, CO2, ADP

c)

ADP, NADP+, Glucose

d)

ATP, NADPH, Oxygen

36.

NADPH and ATP are the forms of the energy carrying molecules that are full of electrons that will be used to power the second part of photosynthesis, the ______________.

a)

Water cycle

b)

Krebs cycle

c)

Carbon cycle

d)

Calvin cycle

37.

In the Calvin cycle, the end result is

a)

water

b)

sugar

c)

oxygen

d)

carbon dioxide

38.

Light reactions occur in the ______________________of the chloroplast

a)

thylakoids

b)

stroma

c)

outer membrane

39.

Light-independent reactions occur in the ______________________of the chloroplast

a)

thylakoids

b)

stroma

c)

outer membrane

40.

Cellular respiration is...

a)

the process by which cells break down glucose into energy.

b)

the process by which cells break light down into energy.

c)

the process by which cells communicate with other cells.

41.

Which type of organism would MOST likely benefit directly from increased levels of CO2?

a)

mushroom

b)

tree

c)

bird

d)

fish

42.

In what part of the cell is glucose initially broken down to form pyruvic acid?

a)

the nucleus

b)

the cytoplasm

c)

the mitochondria

d)

the plasma membrane

43.
In what step of cellular respiration is glucose broken down?
a)
Aerobic Respiration
b)
Krebs Cycle
c)
Electron Transport Chain
d)
Glycolysis
44.
What are the two main products of the Krebs Cycle?
a)
H2O and CO2
b)
ATP and CO2
c)
ATP and O2
d)
ADP and H2O
45.
How would you describe cellular respiration?
a)
Sunlight and CO2 make ATP
b)
ATP and O2 are used to make sugars
c)
Carbon-based molecules from food and oxygen are used to make ATP
d)
ATP and CO2 are used to make ADP and Water
46.

What is the equation for aerobic cellular respiration?

a)
C6H12O6 + 6O2 --> --> --> 6CO2 + 6H2O
b)
C6H12O6 + 6CO2 --> --> --> 6O2 + 6H2O
c)
6 CO2 + 6H2O --> --> --> 6O2 + C6H12O6
47.

Which step of aerobic cellular respiration makes the most ATP?

a)
Glycolysis
b)
Krebs Cycle
c)
Electron Transport Chain
d)
Light Dependent Reactions
48.

The process of glycolysis results in which of the following molecules?

a)
NADPH
b)
Pyruvic Acid
c)
Water
d)
ATP
49.

Which of the following is NOT a stage of cellular respiration?

a)

Glycolysis

b)

Fermentation

c)

Krebs cycle

d)

Electron transport

50.

The starting molecule for glycolysis is

a)

ADP

b)

Pyruvic acid

c)

Glucose

d)

Citric acid

51.

The Krebs cycle does NOT occur if

a)

oxygen is present

b)

oxygen is not present

c)

glycolysis occurs

d)

carbon dioxide is present

52.

In cellular respriration, high-energy electrons that move down the electron transport chain ultimately provide the energy needed to

a)

transport water molecules across the membrane.

b)

convert ADP molecules into ATP molecules.

c)

convert carbon dioxide into water molecules.

d)

break down glucose into pyruvic acid molecules.

53.

Lactic acid fermentation occurs in

a)

bread dough

b)

any environment containing oxygen

c)

muscle cells

d)

mitochondria

54.
Which is not a waste product of cellular respiration?
a)
Water
b)
Heat
c)
Carbon Dioxide
d)
Oxygen
55.

How many steps are there in cellular respiration?

a)

4

b)

2

c)

5

d)

3

56.
Which molecule isn't an energy carrier?
a)
FADH2
b)
NADH
c)
oxygen
d)
ATP
57.
Glycolysis results in a net gain of how many ATP?
a)
0
b)
2
c)
4
d)
1
58.
Which is a product of glycolysis?
a)
pyruvate
b)
carbon dioxide
c)
water
d)
glucose
59.

Which molecule is the product of the Krebs Cycle?

a)

oxygen

b)

pyruvic acid

c)

carbon dioxide

d)

water

60.

Which molecule is the reactant of the Electron Transport Chain?

a)

carbon dioxide

b)

pyruvic acid

c)

oxygen

d)

ATP

61.

What is formed at the end of the Electron Transport Chain by the combination of its reactant and hydrogen?

a)

water

b)

oxygen

c)

carbon dioxide

d)

glucose

62.

What is the total number of ATP molecules formed from the breakdown of one glucose molecule during aerobic cellular respiration?

a)

2-4

b)

32-34

c)

36-38

d)

44

63.

What is the alternative name for the Krebs cycle?

a)

acetic acid cycle

b)

carbon fixation

c)

citric acid cycle

d)

pyruvic acid cycle

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