151.  Mechanism of aerobic respiration was discovered by

A. Calvin

B. Krebs

C. Pasteur

D. Hatch and Slack

Answer : Option B

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152.  Which of the following is the first step of glycolysis

A. Conversion of glucose to fructose

B. Dehydrogenation of glucose

C. Breakdown of glucose

D. Phosphorylation of glucose

Answer : Option D

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153.   How many ATP molecules are released when one molecule of glucose is oxidised in our liver cells

A. 36

B. 38

C. 2

D. 8

Answer : Option B

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154.  RQ of anaerobic respiration is

A. < 1

B. 0

C. 1

D. >1

Answer : Option B

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155.  Which one is an important intermediate formed in all types of respiration

A. Acetyl CoA

B. Oxaloacetate

C. Pyruvic acid

D. Tricarboxylic acid

Answer : Option C

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156.  Single turn of citric acid cycle yields

A. 2 \(FADH_2\), 2 \(NADH_2\), 2 ATP

B. 1 \(FADH_2\), 2\(NADH_2\), 1 ATP

C. 1 \(FADH_2\), 4\(NADH_2\), 1ATP

D. 1 \(FADH_2\),1 \(NADH_2), 1ATP

Answer : Option C

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157.  RQ is less than one, if the respiratory substrate is

A. Organic acids

B. Fats and proteins

C. Sucrose

D. Glucose

Answer : Option B

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158.  Enzyme used in conversion of glucose to glucose 6-phosphate is

A. Hexokinase

B. Isomerase

C. Phosphokinase

D. Phosphohexokinase

Answer : Option A

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159.   Identify the compound that links glycolysis and Krebs cycle

A. Oxaloacctate

B. Pyruvic acid

C. Lactic acid

D. Acetyl CoA

Answer : Option D

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160.  \(F_0\) base of oxysome is towards :

A. Outer chamber

B. Matrix

C. Inner chamber

D. Both B and C

Answer : Option A

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