Biology Multiple Choice Questions and Answers for Different Competitive Exams

Biology Practice Test on Cellular Respiration

The living cells obtain energy by the oxidation of complex organic compounds. The organic compounds, chiefly carbohydrates, are oxidized completely into carbon dioxide and water with the release of energy. This process is called cellular respiration.

Respiration
Biology Practice Test on Cellular Respiration
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1. Aerobic respiratory pathway is approximately termed
parabolic
anabolic
catabolic
amphibolic

2. Apparatus to measure rate of respiration and R.Q IS
manometer
auxanometer
potometer
respirometer

3. The energy releasing metabolic process in which substrate is oxidised without an external electron acceptor is called
glycolysis
aeropic respiration
photorespiration
fermentation

4. When yeast ferments glucose, the products obtained are
Ethanol and water
Ethanol and carbon dioxide
Methanol and carbon dioxide
Water and carbon dioxide

5. EMP can produce a total of
6 ATP
8 ATP
10 ATP
12 ATP

6. When one molecule of ATP is disintegrated, what amount of energy is liberated?
4.5 kcal
7 kcal
10 kcal
36 kcal

7. Out of 38 ATP molecules produced per glucose, 32 ATP molecules are formed from NADH/ FADH2 in
EMP
Kreb’s cycle
Oxidative decarboxylation
Respiratory chain

8. Net gain of ATP molecules, during aerobic respiration, is
34 molecules
36 molecules
38 molecules
40 molecules

9. At the end of glycolysis, six carbon compound ultimately change into
Ethyl alcohol
ATP
Acetyl Co A
Pyruvic acid

10. In glycolysis, during oxidation electrons are removed by
ATP
NAD+
Molecular oxygen
Glyceraldehyde 3 phosphate

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