OXIDATIVE PHOSPHORYLATION QUIZ

Coenzyme Q is involved in electron transport as

directly to O2

covalently attached cytochrome cofactor

a water-soluble electron donor

a lipid-soluble electron carrier

TRUE ANSWER : ?
YOUR ANSWER : ?

What happens after glycolysis when oxygen is available as an electron acceptor?

Oxidative phosphorylation

Fermentation

Pyruvate is formed

NADH is produced

TRUE ANSWER : ?
YOUR ANSWER : ?

During glycolysis, electrons removed from glucose are passed to

FAD

pyruvic acid

NAD+

acetyl CoA

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is not a feature of oxidative phosphorylation?

A protonmotive force

A membrane bound ATP synthase

An electrochemical gradient across the inner mitochondrial membrane

Direct transfer of phosphate from a substrate molecule to ADP

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is correct sequence of processes in the oxidation of glucose?

Krebs cycle - glycolysis - electron transport

Electron transport - Krebs cycle - glycolysis

Krebs cycle - electron transport - glycolysis

Glycolysis - Krebs cycle - eletron transport

TRUE ANSWER : ?
YOUR ANSWER : ?

In electron transport, electrons ultimately pass to

oxygen

none of these

cytochrome b

ADP

TRUE ANSWER : ?
YOUR ANSWER : ?

The aerobic breakdown of glucose known as respiration involves

Krebs Cycle

electron transport phosphorylation

all of the above

glycolysis

TRUE ANSWER : ?
YOUR ANSWER : ?

Lactic acid is produced by human muscles during strenuous exercise because of lack of

NAD+

oxygen

glucose

ADP and Pi

TRUE ANSWER : ?
YOUR ANSWER : ?

FAD is reduced to FADH2 during

electron transport phosphorylation

glycolysis

lactate fermentation

Krebs cycle

TRUE ANSWER : ?
YOUR ANSWER : ?

How many CO2 molecules are exhaled for each O2 molecule utilized in cellular respiration?

1

12

6

3

TRUE ANSWER : ?
YOUR ANSWER : ?

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