Chapter 7

Question 1

True or False? Glycolysis results in the release of carbon dioxide.

Answer 1

False

Question 2

True or False? Glycolysis is a cyclical reaction.

Answer 2

False

Question 3

True or False? Glycolysis breaks down to two pyruvate molecules.

Answer 3

True

Question 4

True or False? Glycolysis occurs twice per glucose molecule.

Answer 4

False

Question 5

True or False? Glycolysis is a reduction reaction where only glucose is reduced

Answer 5

False

Question 6

Where does glycolysis take place within a cell?

Answer 6

cytoplasm

Question 7

What are the final products of glycolysis?

Answer 7

pyruvate, ATP, and NADH+H+

Question 8

What are the input requirements of glycolysis?

Answer 8

ATP, NAD+, glucose, and ADP

Question 9

What role does NAD+ play in cellular respiration?

Answer 9

It is a coenzyme, It accepts 2 electrons, It is necessary for glycolysis

Question 10

What is a substrate of cellular respiration?

Answer 10

glucose

Question 11

Which molecules are the products of aerobic respiration?

Answer 11

carbon dioxide and water

Question 12

Which molecules are the reactants/substrates for aerobic respiration?

Answer 12

oxygen and glucose

Question 13

List the reactions of cellular respiration in order

Answer 13

1. Glycolysis
2. Preparatory Reaction
3. Citric acid cycle
4. electron transport chain

Question 14

Muscles undergo fermentation when

Answer 14

no oxygen is available

Question 15

Pyruvate can be converted to lactate instead of going to the preparatory reaction. Why does this occur?

Answer 15

oxygen is not available

Question 16

Why do organisms without oxygen need to convert pyruvate to lactate?

Answer 16

in order to regenerate NAD+

Question 17

Which phase(s) of cellular respiration produce(s) NADH?

Answer 17

glycolysis, preparatory reaction, and citric acid cycle

Question 18

Which stage(s) will produce carbon dioxide in cellular respiration?

Answer 18

both the preparatory reaction and the citric acid cycle

Question 19

The largest number of ATP molecules is produced in which phase of cellular respiration?

Answer 19

electron transport chain

Question 20

Pyruvate is converted to a two-carbon acetyl group attached to coenzyme A (CoA), and CO2 is given off. This place is called

Answer 20

the preparatory reaction

Question 21

True or False? The end product of glycolysis is pyruvate

Answer 21

True

Question 22

True or False? The citric acid cycle begins and ends with pyruvate.

Answer 22

False

Question 23

True or False? NADH2 will eventually produce three ATP molecules.

Answer 23

True

Question 24

True or False? Aerobic respiration uses oxygen and releases carbon dioxide.

Answer 24

True

Question 25

Which pathway in cellular respiration will produce ATP, NADH, and carbon dioxide ?

Answer 25

citric acid cycle

Question 26

The production of ATP as a result of an electrochemical gradient is called

Answer 26

chemiosmosis

Question 27

Why does chemiosmosis require a membrane?

Answer 27

to separate two compartments of the cell to allow for gradient formation

Question 28

What is the final electron acceptor at the end of the electron transport chain in respiration?

Answer 28

oxygen

Question 29

Which molecules donate electrons to the electron transport chain of respiration?

Answer 29

NADH and FAD

Question 30

Where is NAD+ converted to NADH?

Answer 30

Cytoplasm and Matrix of the Mitochondrion

Question 31

ATP and ADP have a strong negative charge. How could that get into and out of the mitochondrion?

Answer 31

Through a membrane transport protein

Question 32

Where is the electron transport chain located?

Answer 32

cristae of mitochondria

Question 33

Fermentation happens where?

Answer 33

cytoplasm

Question 34

lactic acid fermentation

Answer 34

Animals and bacteria

Question 35

alcohol fermentation

Answer 35

Fungi and yeasts

Question 36

The preparatory reaction is located

Answer 36

in the matrix of the mitochondria