Question No:1

Pyruvate (pyruvic acid) dehydrogenase is used in converting

[A] pyruvate to glucose
[B] glucose to pyruvate
[C] pyruvic acid to lactic acid
[D] pyruvate (pyruvic acid) to acetyl CoA



Question No:2

The number of molecules of pyruvic acid formed from one molecule of glucose at the end of glycolysis is

[A] 1
[B] 2
[C] 3
[D] 4



Question No:3

What is the other name of glycolysis?

[A] BMP pathway
[B] TCA pathway
[C] HMS pathway
[D] None



Question No:4

The common phase between aerobic and anaerobic respiration is called

[A] Tricarboxylic acid cycle
[B] Oxidative phosphorylation
[C] Embden, Meyerhof, Parnas cycle
[D] Kreb’s cycle



Question No:5

The oxidation of one NADH2 yields

[A] 18ATP
[B] 6ATP
[C] 3 ATP
[D] 2ATP



Question No:6

The end product of glycolysis is

[A] acetyl Co-A
[B] citric acid
[C] pyruvic acid
[D] fumaric acid



Question No:7

Which one of the following is the first step of glycolysis?

[A] Breakdown of glucose
[B] Phosphorylation of glucose
[C] Conversion of glucose into fructose
[D] Dehydrogenation of glucose



Question No:8

Which of the following is the correct sequence of glycolysis?

[A] G 6-P -> PEP -> 3-PGAL -> 3-PGA
[B] G 6-P -> 3-PGAL -> 3-PGA -> PEP
[C] G 6-P -> PEP -> 3-PGA -> 3-PGAL
[D] G 6-P -> 3-PGA -> 3-PGAL -> PEP



Question No:9

Which intermediate compound is involved in the synthesis of amino acids?

[A] Malic acid
[B] Citric acid
[C] oc-ketogluteric acid
[D] Isocitric acid



Question No:10

In ATP molecule energy is stored in

[A] chemical bonds
[B] hydrogen bonds
[C] carbon bonds
[D] pyrophosphate bonds



Question No:11

Kreb’s cycle is termed as the aerobic phase of respiration because

[A] it consumes oxygen
[B] oxygen acts as a catalyst
[C] aerobic conditions are essential for the continued operation of electron transport system
[D] all



Question No:12

Between which of the following stages, GTP is formed by substrate level phosphorylation?

[A] Succinate to fumarate
[B] Ketoglutarate to succinate
[C] Oxalo succinate to glutarate
[D] Fumarate to malate



Question No:13

How many molecules of ATP are produced per molecule of FADH₂ oxidised?

[A] One
[B] Two
[C] Three
[D] Four



Question No:14

A molecule of ATP is formed when electron passes from

[A] Cyt c to Cyt a
[B] Cyt a to Cyt c
[C] Cyt b to Cyt c ₁
[D] Cyt c to Cyt b



Question No:15

Kreb’s cycle is also known as

[A] glyoxylate cycle
[B] BMP pathway
[C] citric acid cycle
[D] glycolate cycle