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Cellular Respiration Review

Total questions: 20

Worksheet time: 20mins

Name
Class
Date
1.
Which of the following molecules is NOT a byproduct of cellular respiration? 
a)
CO2
b)
Heat
c)
H2O
d)
ATP
2.

The Krebs Cycle will only start in the presence of which gas?

a)

CO₂

b)

H₂O

c)

O₂

d)

CH₄

3.
What is the correct equation for cellular respiration?
a)
6O2 + C6H12O6 -> 6CO2 + 6H2O + Energy
b)
6O2 + C6H12O6 + Energy -> 6CO2 + 6H2O
c)
6CO2 + 6H2O -> 6O2 + C6H12O6 + Energy
d)
6CO2 + 6H2O + Energy -> 6O2 + C6H12O6
4.
A diagram representing the relationship between photosynthesis and cellular respiration is shown.  The numbered boxes in the diagram represent which of the following?
a)
1 - water; 2 - nitrogen
b)
1 - nitrogen; 2 - oxygen
c)
1 - oxygen; 2 - carbon dioxide
d)
1 - carbon dioxide; 2 - water
5.

Under anaerobic conditions yeast release

a)

oxygen

b)

carbon monoxide

c)

lactic acid

d)

ethyl alcohol

6.

The kreb cycle must complete ___ cycles to complete the breakdown of 1 glucose molecule

a)

1

b)

2

c)

3

d)

4

7.
Which statement best compares aerobic and anaerobic respiration? 
a)
Less ATP is generated during anaerobic respiration than during aerobic respiration. 
b)
More water is generated during anaerobic respiration than during aerobic respiration. 
c)
More oxygen is generated during anaerobic respiration than during aerobic respiration. 
d)
Less lactic acid is generated during anaerobic respiration than during aerobic respiration. 
8.

What happens during GLYCOLYSIS?

a)

Oxygen is used to breakdown glucose molecules.

b)

ATP is produced from oxygen.

c)

Glucose is broken down into pyruvic acid.

d)

Pyruvic acid is broken down into Acetyl-CoA.

9.

Which is not a REACTANT of cellular respiration?

a)

CO₂

b)

NADH

c)

Glucose

d)

O₂

10.
What is cellular respiration?
a)
the breakdown of glucose  to release ATP
b)
the breakdown of glucose to release NADH
c)
the breakdown of glucose to release FADH
d)
the breakdown of glucose to release carbon
11.
The inner membrane of this organelle is highly folded.  What is the advantage of this folding?
a)
It increases the amount of light absorbed by the organelle.
b)
It increases the structural support of the organelle.
c)
It increases the surface area, allowing greater ATP production.
d)
It increases the surface area and the rate of glucose production.
12.

How can energy from the sun be transferred to animals?

a)

The sun's energy is transformed into food by plants, animals eat plants as food so that they can transform that food into energy.

b)

Plants produced energy through photosynthesis, animals that eat that energy can produce food.

c)

Plants transformed energy of the sun into gases that animals can breath in to use as energy through respiration.

d)

Animals are able to use energy from the sun by eating the plants that provides energy for the animals.

13.
A weightlifter is using heavy weights in short bursts for a competition. Because his muscle cells are not able to take in enough oxygen to make very much ATP the weightlifter begins to get fatigue in his muscles. Which of the following processes is most likely going on in the muscles of the weightlifter as he competes in his event? 
a)
 As the cells run out of oxygen they switch to anaerobic respiration, which allows the cell to make small amounts of ATP in the absence of oxygen. 
b)
As the cells run out of oxygen, they die off gradually and the weightlifter's muscles have fewer contracting muscle cells.
c)
The cells will never run out of oxygen if the weightlifter is breathing.
d)
As the cells run out of oxygen, they will continue to make the same amount of ATP, since oxygen is not required to make ATP. 
14.

proteins found on the inner matrix of the mitochondria cristae that are responsible for the majority of ATP production in a cell is called the

a)

electron transport chain

b)

hydrogen transport turbine

c)

kreb cycle

d)

citric acid cycle

15.
Two different species of bacteria are examined. Scientists find that species X always produces CO2 and H2O during cellular respiration. Species Y always produces ethyl alcohol and CO2. Which conclusion can be made from these observations? 
a)
 Only species Y is aerobic.
b)
Only species Y is anaerobic.
c)
Both species X and Y are aerobic.
d)
 Both species X and Y are anaerobic. 
16.
What does metabolism mean?
a)
Converting energy into food
b)
Making light reactions happen
c)
Converting food into energy
17.
What does metabolism mean?
a)
Converting energy into food
b)
Making light reactions happen
c)
Converting food into energy
18.

Cellular Respiration occurs in what cell organelle?

a)

chloroplast

b)

cytoplasm

c)

mitochondria

d)

animal

19.
Fermentation enables glycolysis to continue under 
a)
anaerobic conditions
b)
aerobic conditions
c)
photosynthetic conditions
d)
hydrophobic conditions
20.

Which stage of the cellular respiration process produces the most ATP?

a)

Glycolysis

b)

Acetyl CoA

c)

Kreb's Cycle

d)

Electron Transport Chain

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