Chapter 9 Quiz Review

Question 1

Substance gains electrons

Answer 1

Reduction

Question 2

Combination of oxidation and reduction reaction

Answer 2

Redox reaction

Question 3

During cellular respiration _______is oxidized, and ______ is reduced

Answer 3

glucose oxidizes

oxygen reduces

Question 4

During energy investment phase of glycolysis, how many ATP are used?

Answer 4

2 ATPs are used

Question 5

During energy pay-off phase of glycolysis, how many ATP are produced?

Answer 5

4 ATPs are produced

Question 6

What is the net ATP and NADH gain at the end of glycolysis?

Answer 6

2 ATPs and 2 NADHs

Question 7

Where does glycolysis takes place?

Answer 7

Cytosol/cytoplasm

Question 8

Which organic molecule is produced at the end of glycolysis?

Answer 8

Pyruvic acid (two molecules per glucose molecule)

Question 9

Pyruvate is converted to ______before entering Citric acid cycle

Answer 9

Acetyl CoA (two of these)

Question 10

The Krebs cycle generates ___ATP, _______NADH, and ______FADH2 per turn

Answer 10

1 ATP, 3 NADHs, and 1 FADH2

Question 11

Which step of cellular respiration generates 90% of ATP?

Answer 11

Oxidative phosphorylation

Question 12

What is the location of chemiosmosis?

Answer 12

Mitochondrial matrix

Question 13

Which steps of cellular respiration require oxygen?

Answer 13

Intermediate step/bridge reaction
Krebs cycle
Oxidative phosphorylation

Question 14

How many ATPs are produced during substrate level phosphorylation?

Answer 14

4 ATPs

Question 15

What is the location for bridge reaction?

Answer 15

Mitochondrion

Question 16

Electron transport chain generates how many ATP(s)?

Answer 16

no ATP

Question 17

What is the total gain of ATP from 1 glucose molecule?

Answer 17

38 ATPs

Question 18

What percentage of the energy of a glucose molecule is converted into ATP?

Answer 18

40%

Question 19

During oxidative phosphorylation, the final acceptor of electrons or hydrogen ion is?

Answer 19

Oxygen

Question 20

Pyruvate is converted to ethanol during what type of fermentation?

Answer 20

Alcohol fermentation

Question 21

Cheese and yogurt are formed through what type of fermentation?

Answer 21

Lactic acid fermentation

Question 22

Substrate level phosphorylation generates what percentage of total ATP produced during cellular respiration?

Answer 22

10%