The first step of cellular respiration is glycolysis which converts glucose to _

Question

The first step of cellular respiration is glycolysis which converts glucose to ____________

acetate

pyruvate

isocitrate

citrate

2 points

Question 2

How many ATPs and how many NADHs are generated during glycolysis. Blank 1 ATPs and Blank 2 NADHs. Give only numerical answers.

2 points

Question 3

Pyruvic acid will be broken down into Acetyl-CoA. This step generates how many NADH?

3

2

1

0

2 points

Question 4

Acetyl-CoA will participate in the Kreb's Cycle by combining with ________________ to form citrate

oxaloacetate

alpha-ketoglutarate

isocitrate

succinate

2 points

Question 5

For every 1 NADH, _________ ATP will come out of Electron Transport Chain (ETC). For every 1 FADH2, ________ ATP wil come out of the ETC.

3, 1

1, 3

3, 2

2, 3

2 points

Question 6

What is the name of the enzyme responsible for making ATP in the Electron Transport Chain?

ATP dehydrogenase

ATP kinase

ATP phosphatase

ATP synthase

2 points

Question 7

The final electron acceptor for the Electron Transport Chain is oxygen

True

False

2 points

Question 8

How many total ATPs are generated throughout the complete step of cellular respiration?

32

34

36

38

2 points

Question 9

If a system undergoes ten complete cycles of Kreb's, how many total ATPs will be generated by the system if all the NADHs and FADH2s are converted into ATPs by the ETC.

(Hint: Focus only on the Kreb's cycle. Do not worry about the NADH and ATP generated during glycolysis and pyruvic acid breakdown to acetyl-COA)

120 ATPs

110 ATPs

100 ATPs

90 ATPs

2 points

Question 10

If oxygen is not utilized, pyruvate will not be converted to acetyl-coA but will undergo fermentation. One type of fermentation, alcohol fermentation, yields what kind of products?

lactic acid and C02 gas

ethanol and C02 gas

lactic acid only

ethanol only

2 points

Question 11

Sunlight energy is absorbed in which organelle of the plant cell?

chloroplast

vacuole

cell wall

mitochondria

2 points

Question 12

The higher the wavelength of the photon, the higher its radiation/energy.

True

False

2 points

Question 13

Plants absorb the energy of the sun in which radiation of the sun?

ultraviolet rays (UV rays)

Xrays

microwave

visible light rays

2 points

Question 14

Where are pigments like chlorophyll located?

in the thylakoid membranes

in the stroma

in the inner membrane of the chloroplast

in th outer membrane of the chloroplast

2 points

Question 15

The two reactions involved in photosynthesis are the light and dark reactions. In light reactions, there are two photosystems involved. Photosystem I generates ___________ for the system and Photosytem II generates ________ for the system.

ATP; NADPH

ATP; NADP+

NADPH, ATP

NADP+, ATP

2 points

Question 16

Light reactions occur in the ____________, while dark reactions occur in the _____________

thylakoid membrane, stroma

stroma, thylakoid membrane

stroma, outer membrane of chloroplast

outer membrane of chloroplast, stroma

2 points

Question 17

Calvin Cycle generates 1 G3P molecule. Thus, calvin cycle must cycle how many times in order to make one glucose molecule?

once

twice

thrice

four times

2 points

Question 18

How many carbon dioxide must be introduced into the Calvin cycle to get the cycle going?

0

1

2

3

2 points

Question 19

When plants make more food than it can use , it is actually stored as starch in roots, tubers and roots.

True

False

2 points

Question 20

What kind of reaction is the conversion of NADPH to NA+

oxidation

reduction

dehydration synthesis

hydrolysis

2 points

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acetate

pyruvate

isocitrate

citrate

Explanation / Answer

1. pyruvate
2. 4ATP, 2NADH; NET 2ATP, 2NADH
3. 1 FOR PYRUVIC ACID AND 2 FOR GLUCOSE MOLECULE
4. oxaloacetate
5. 3, 2
6. ATP synthase
7. True
8. 38
9. 120 ATPs
10. ethanol and C02 gas
11. chloroplast
12. False
13. visible light rays
14. in the thylakoid membranes
15. NADPH, ATP
16. thylakoid membrane, stroma
17. thrice
18. 3
19. True
20. oxidation

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