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2nd monthly test revision

Total questions: 58

Worksheet time: 49mins

Name
Class
Date
1.

The starting molecule for glycolysis is

a)

ADP

b)

pyruvic acid

c)

glucose

d)

crtric acid

2.

Glycolysis requires

a)

ATP

b)

oxygen

c)

sunlight

d)

NADP+

3.

Which of the following is NOT a product of glycolysis?

a)

NADH

b)

pyruvic acid

c)

ATP

d)

glucose

4.

Which of the following is an electron carrier that plays a role in cellular respiration?

a)

NAD+

b)

pyruvic acid

c)

NADP+

d)

ATP

5.

Which of the following is an electron carrier that plays a role in photosynthesis?

a)

NAD+

b)

NADP+

c)

FAD+

d)

ADP

6.

The starting molecule for the Krebs cycle is

a)

glucose

b)

NADH

c)

pyruvic acid

d)

critric acid

7.

The first acid produced in the Krebs cycle is

a)

citric acid

b)

pyruvic acid

c)

CO2

d)

FADH2

8.

The number of ATP produced in glycolysis___

a)

2

b)

4

c)

32

d)

36

9.

Glycolysis provides a cell with a net gain of___

a)

2 ATP

b)

4 ATP

c)

32 ATP

d)

36 ATP

10.

Krebs cycle provides a cell with a gain of

a)

2 ATP

b)

4 ATP

c)

32 ATP

d)

36 ATP

11.

Electron transport chain provides a gain of ____

a)

2 ATP

b)

4 ATP

c)

32 ATP

d)

36 AT{

12.

Cellular respiration provides a cell with a net gain of___

a)

2 ATP

b)

4 ATP

c)

32 ATP

d)

36 ATP

13.

Glycolysis takes place in

a)

cytoplasm

b)

matrix

c)

inner membrane of mitocondria

d)

outer membrane of mitocondria

14.

The Krebs cycle takes place in

a)

the matrix

b)

the inner memrbane of the mitochondria

c)

the cytoplasm

d)

the inner membrane of the chloroplast

15.

The proteins of the electron transport chain is located at the

a)

inner membrane of the mitochondria

b)

outer membrane of the mitochondria

c)

the matrix

d)

the intermembrane space

16.

The Krebs cycle produces

a)

ATP

b)

FADH2

c)

CO2

d)

NADH

17.

The glycolysis produces

a)

pyruvic acid

b)

NADH

c)

ATP

d)

FADH2

18.

The electron transport chain produces

a)

ATP

b)

ADP

c)

NADH

d)

FADH2

19.

In the Krebs cycle, the carbon atoms in a three-carbon molecule are released in

a)

one molecule of water.

b)

three molecules of oxygen.

c)

one molecule of glucose.

d)

three molecules of carbon dioxide.

20.

The Krebs cycle mainly releases energy in the form of

a)

ATP

b)

FADH2

c)

NADH

d)

pyruvic acid

21.

The Krebs cycle releases energy not in the form of

a)

ATP

b)

NADH

c)

FADH2

d)

NADPH

22.

Glycolysis rearranges a 6-carbon glucose molecule into two 3-carbon molecules of

a)

pyruvic acids

b)

citric acid

c)

NADH

d)

ATP

23.

One pyruvic acid produces ___ATP in the Krebs cycle

a)

1

b)

2

c)

4

d)

3

24.

2 pyruvic acids produce ____ATP in the Krebs cycle.

a)

1

b)

2

c)

3

d)

4

25.

Why is the Krebs cycle also known as the citric acid cycle?

a)

It because that citric acid is the first compound produced in this process.

b)

It is because citric acid is produced in this process.

26.

Label the process of glycolysis

a)electron transport chain
b)pyruvic acids
c)cytoplasm
d)4
e)2
f)NAD+
g)glucose
h)ATP
i)ADP
j)NADH
1
2
3
4
5
6
7
8
9
10
1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
27.

NAD+ picks up 4 highenergy electrons from a

glycolysis reaction. This

step makes 2 NADH.

A
B
C
D
28.

Splitting glucose to

make 2 smaller

molecules takes 2

molecules of ATP

A
B
C
D
29.

The last steps make

4 molecules of ATP,

which means a net

gain of 2 ATP

A
B
C
D
30.

How do organisms get the energy they need?

a)

by burning food molecules and releasing their energy as heat

b)

by breathing oxygen into the lungs and combining it with carbon dioxide

c)

by breaking down food molecules gradually and capturing their chemical energy

d)

by using the sun’s energy to break down food molecules and form chemicals

31.

The cellular respiration involves which stages?

a)

Electron transport

b)

Glycolysis

c)

fermentation

d)

the Krebs cycle

32.

Which of the following is the correct sequence of events in cellular respiration?

a)

glycolysis  fermentation  Krebs cycle

b)

Krebs cycle  electron transport  glycolysis

c)

glycolysis  Krebs cycle  electron transport

d)

Krebs cycle  glycolysis  electron transport

33.

Cellular respiration releases energy by breaking down

a)

food molecules

b)

ATP

c)

CO2

d)

water

34.

Which of the following processes are aerobic?

a)

glycolysis

b)

electron transport

c)

the krebs cycle

d)

fermentation

35.

Cellular respiration is called an aerobic process because it requires

a)

light

b)

exercise

c)

oxygen

d)

glucose

36.

Which type of organisms is NOT likely to carry out cellular respiration?

a)

cypress tree

b)

tiger

c)

mushroom

d)

anaerobic bacterium

37.

Where does the cellular respiration take place in this diagram?

a)

A

b)

B

c)

C

d)

D

e)

E

38.

Which process does NOT release energy from glucose?

a)

glycolysis

b)

photosynthesis

c)

krebs cycle

d)

cellular respiration

39.

Which of the following is one of the ways that cellular respiration and photosynthesis are opposite processes?

a)

Photosynthesis releases energy, and cellular respiration stores energy.

b)

Photosynthesis removes carbon dioxide from the atmosphere, and cellular respiration puts it back.

c)

Photosynthesis removes oxygen from the atmosphere, and cellular respiration puts it back.

d)

Photosynthesis consumes glucose, and cellular respiration produces glucose.

40.

Photosynthesis is to chloroplasts as cellular respiration is to

a)

chloroplasts

b)

mitochondria

c)

cytoplasm

d)

nuclei

41.

Unlike photosynthesis, cellular respiration occurs in

a)

animals only

b)

plants only

c)

prokaryotic cells only

d)

eukqryotic cells only

42.

The products of photosynthesis are the

a)

products of cellular respiration.

b)

reactants of cellular respiration.

c)

products of glycolysis.

d)

reactants of fermentation.

43.

Which of these processes takes place in the cytoplasm of a cell?

a)

glycolysis

b)

electron transport

c)

Krebs cycle

d)

photosynthesis

44.

A calorie is the amount of energy needed to raise the temperature of 1 gram of water 1 degree Celsius.

a)

T

b)

F

45.

Animals breathe in order to take in the carbon dioxide their cells need to perform cellular respiration.

a)

T

b)

F

46.

A calorie is the amount of energy needed to raise the temperature of 1 gram of water 10 degree Celsius.

a)

T

b)

F

47.

Muscle cells, which need a lot of ATP, would be expected to have a lot of ____, the organelles involved in cellular respiration.

a)

mitochondria

b)

chloroplast

c)

nuclei

d)

cytoplasm

48.

Which part indicates cellular respiration?

a)

A

b)

B

c)

C

d)

D

49.

Write out the formula of cellular respiration on paper.

4 lines
50.

List the three main stages of cellular respiration in order. Where does each stage take place in the cell?

4 lines
51.

List out the three types of electron carriers and their symbols with high-energy electrons.

4 lines
52.

Lily has eaten a bar of chocolate, calculate her energy intake in Calories.

53.

Pyruvic acid from

glycolysis enters the

mitochondrion’s matrix.

A
B
C
D
E
F
54.

Enzymes split CO2

off from pyruvic acid,

leaving a 2-carbon

molecule. NADH is

produced from NAD+.

A
B
C
D
E
F
55.

The 4-carbonatom molecule can

go through the

cycle again.

A
B
C
D
E
F
56.

More

reactions make

high-energy

molecules of

ATP, FADH2,

and NADH

A
B
C
D
E
F
57.

The 2-carbon-atom

molecule joins a

4-carbon-atom molecule

to become citric acid.

A
B
C
D
E
F
58.

More CO2 and

NADH are made as

citric acid becomes

a 4-carbon-atom

molecule

A
B
C
D
E
F

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