ENERGY RELEASE AND CONSERVATION QUIZ

Most bacterial fermentations yield how many net ATP molecules per molecule of glucose?

2

6

4

1

TRUE ANSWER : ?
YOUR ANSWER : ?

The amount of ATP that can be obtained by complete oxidation of a glucose by a bacterium is

lesser than by a yeast cell

exactly or approximately equal to by a yeast cell

none of these

greater than by a yeast cell

TRUE ANSWER : ?
YOUR ANSWER : ?

The final electron acceptor in the electron transport chain is

CoQ

a cytochrome

FMN

oxygen

TRUE ANSWER : ?
YOUR ANSWER : ?

How many molecules of carbon dioxide will be given off during ten turns of the Krebs cycle?

20

30

10

40

TRUE ANSWER : ?
YOUR ANSWER : ?

Before most molecules can enter the Krebs citric acid cycle, they must be converted to

oxaloacetic acid

NADH or FADH

acetyl-CoA

citric acid

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following best explains about the usefulness of the production of ethanol in yeast cells under anaerobic conditions?

The process regenerates NAD+, which is required for glycolysis

The process generates oxygen, which is required for glycolysis

Yeast would be unable to activate the enzymes of the Krebs cycle without ethanol

Ethanol keeps the electron transport system functioning

TRUE ANSWER : ?
YOUR ANSWER : ?

In glycolysis, ATP is created by

photophosphorylation

substrate level phosphorylation

the pentose phosphate pathway

the chemiosmotic mechanism

TRUE ANSWER : ?
YOUR ANSWER : ?

The enzymes that catalyze the reactions of the Krebs cycle are found in which subcellular organelle of eukaryotes?

Chloroplast

Endoplasmic reticulum

Mitochondrion

Ribosome

TRUE ANSWER : ?
YOUR ANSWER : ?

In anaerobic respiration, the final electron acceptor can be

nitrate

oxygen

acetyl-CoA

pyruvate

TRUE ANSWER : ?
YOUR ANSWER : ?

For each pair of electrons passing from NADH located inside the mitochondria to oxygen, how many ATP molecules can be generated?

2

4

3

1

TRUE ANSWER : ?
YOUR ANSWER : ?