2 SEPTEMBER 2021 CURRENT AFFAIRS QUIZ

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

Krebs cycle - electron transport - glycolysis

Electron transport - Krebs cycle - glycolysis

Krebs cycle - glycolysis - electron transport

Glycolysis - Krebs cycle - eletron transport

TRUE ANSWER : ?
YOUR ANSWER : ?

During glycolysis, electrons removed from glucose are passed to

acetyl CoA

FAD

NAD+

pyruvic acid

TRUE ANSWER : ?
YOUR ANSWER : ?

FAD is reduced to FADH2 during

electron transport phosphorylation

glycolysis

Krebs cycle

lactate fermentation

TRUE ANSWER : ?
YOUR ANSWER : ?

A biological redox reaction always involves

a gain of electrons

an oxidizing agent

all of these

a reducing agent

TRUE ANSWER : ?
YOUR ANSWER : ?

In aerobic respiration, the compound that enters a mitochondrion is

acetyl CoA

phosphoglyceraldehyde

oxaloacetate

pyruvate

TRUE ANSWER : ?
YOUR ANSWER : ?

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

12

1

6

3

TRUE ANSWER : ?
YOUR ANSWER : ?

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

An electrochemical gradient across the inner mitochondrial membrane

A protonmotive force

Direct transfer of phosphate from a substrate molecule to ADP

A membrane bound ATP synthase

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Fermentation

NADH is produced

Oxidative phosphorylation

Pyruvate is formed

TRUE ANSWER : ?
YOUR ANSWER : ?

The complete oxidation of glucose yields usable energy in the form of

coenzyme A

FADH2

ATP

pyruvic acid

TRUE ANSWER : ?
YOUR ANSWER : ?

Coenzyme Q is involved in electron transport as

covalently attached cytochrome cofactor

a water-soluble electron donor

directly to O2

a lipid-soluble electron carrier

TRUE ANSWER : ?
YOUR ANSWER : ?

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