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Chapter 7

front 1

The equation, C6H12O6 + 6O2-->6CO2 + 6H2O (ATP + Heat), describes a reaction that

back 1

is exergonic

front 2

The equation, C6H12O6 + 6O2-->6CO2 + 6H2O (ATP + Heat), describes which of the following processes?

back 2

cell respiration

front 3

Which of the following are the final by-products of glucose oxidation during aerobic cell respiration?

back 3

ATP, heat, and carbon dioxide

front 4

Which of the following processes will occur in the presence or absence of oxygen?

back 4

glycolysis

front 5

Where does glycolysis takes place?

back 5

cytosol

front 6

Which of the following is NOT a process of aerobic respiration?

back 6

lactate fermentation

front 7

Which of the following is TRUE of the citric acid cycle?

back 7

It yields ATP, NADH, and FADH2 as energy intermediates.

front 8

Which of the following function: location relationship is INCORRECT?

back 8

acetyl CoA formation; cytosol

front 9

Which compound has the highest free energy and produces the most ATP when oxidized?

back 9

glucose

front 10

Cellular respiration produces the most chemical in the form of ATP from which of the following?

back 10

oxidative phosphorylation

front 11

How many ATP and NADH molecules are produced from each molecule of glucose in the citric acid cycle only?

back 11

2 ATP, 6 NADH

front 12

How many net ATP and NADH molecules are produced from one molecule of glucose during glycolysis?

back 12

2 ATP, 2 NADH

front 13

High-energy electrons from molecules of NADH and FADH2 are transferred to a chain of proteins within the electron transport chain. What is the final electron acceptor of the electron transport chain?

back 13

cytochrome c

front 14

Which of the following statements is TRUE of both aerobic and anaerobic respiration?

back 14

Both use glycolysis to oxidize glucose to pyruvate and both produce NADH as high-energy intermediates.

front 15

Which would be TRUE if a metabolic poison were to completely inhibit the function of mitochondrial ATP synthase?

back 15

The pH difference across the inner mitochondrial membrane would increase.

front 16

Which of the following is most directly responsible for driving ATP synthase and the production of ATP in cellular respiration?

back 16

The ability of oxygen to rapidly capture an electron and energize ATP synthase.

front 17

Which of the following statements about the electron transport chain in cell respiration is CORRECT?

back 17

The loss in free energy of the electron initially donated by NADH is used to transport H+ across the inner mitochondrial membrane against its electrochemical gradient.

front 18

Assuming a fat molecule can be oxidized into 2 glycerol molecules, which are immediately converted to glyceraldehyde-3-phosphate, in intermediate glycolysis, how many ATP can be produced from a fat molecule?

back 18

36

front 19

Where are the protein complexes associated with the electron transport chain located?

back 19

mitochondrial inner membrane

front 20

During glycolysis, glucose is broken down into

back 20

pyruvate.

front 21

The ATP made during glycolysis is generated by

back 21

substrate-level phosphorylation.

front 22

During the cleavage stage of glycolysis, fructose-1, 6 biphosphate is broken down into

back 22

two molecules of glyceraldehyde-3-phosphate.

front 23

In addition to ATP, what are the end products of glycolysis?

back 23

NADH and pyruvate

front 24

In the citric acid cycle, the acetyl group is removed from acetyl CoA and attached to oxaloacetate to form

back 24

citrate

front 25

In the citric acid cycle, succinate is oxidized to form

back 25

fumarate.

front 26

In the citric acid cycle, malate is oxidized to form

back 26

oxaloacetate

front 27

The enzyme responsible for oxidizing pyruvate once it enters the mitochondrial matrix is

back 27

pyruvate dehydrogenase.

front 28

Which pathway shows the correct path of electron transfer from a molecule of NADH?

back 28

NADH hydrogenase-->ubiquinone-->cytochrome b-c1-->cytochrome c--> cytochrome oxidase-->O2

front 29

Which pathway shows the correct path of electron transfer from a molecule of FADH2?

back 29

succinate reductase --> ubiquinone --> cytochrome b-c1--> cytochrome c --> cytochrome oxidase -->O2

front 30

Energy released by the electron transport chain is used to pump H+ ions into which location?

back 30

mitochondrial intermembrane space

front 31

Sports physiologists at an Olympic training center wanted to monitor athletes to determine at what point their muscles were functioning anaerobically. They could do this by checking for the buildup of which molecule?

back 31

lactate

front 32

Which of the following is INCORRECT for ethanol fermentation?

back 32

Results in a net production of NADH.

front 33

Which of the following does NOT occur during yeast fermentation?

back 33

Lactate is produced

front 34

When muscles cells are deprived of oxygen, the heart still pumps. What must the heart cells be able to do?

back 34

derive sufficient energy from fermentation

front 35

Which of the following is NOT considered a secondary metabolite?

back 35

glucose

front 36

Vanillin is to flavonoids as atropine is to

back 36

alkoloids.