121.  Final electron acceptor in respiration is

A. Hydrogen

B. Oxygen

C. Cytochromes

D. Dehydrogenases

Answer : Option B

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122.  Oxidative phosphorylation is found in

A. Chloroplasts

B. Leucoplasts

C. Peroxisomes

D. Mitochondria

Answer : Option D

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123.  In Opunita and other succulents, night time R.Q. is

A. One

B. More than one

C. Zero

D. Less than one

Answer : Option C

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124.  RQ of protein rich pulses is ‘

A. Unity

B. Infinity

C. More than unity

D. Less than one

Answer : Option D

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125.  Oxidation of a molecule of acetyl CoA produces

A. 12 ATP

B. 15 ATP

C. 6 ATP

D. 19 ATP

Answer : Option A

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126.  Maximum amount of energy/ATP is liberated on oxidation of

A. Fats

B. Proteins

C. Starch

D. Vitamins

Answer : Option A

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127.  R.Q. is ratio of ;

A. \(C0_2\) produced to substrate consumed

B. \(CO_2\)produced to\(O_2\) consumed

C. Oxygen consumed to water produced

D. (d) Oxygen consumed to \(CO_2\)produced

Answer : Option B

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128.  Connecting link between glycolysis and Krebs cycle is/before entering Krebs cycle pyruvate is changed to

A. Oxaloacetate

B. PEP

C. Pyruvate

D. Acetyl CoA

Answer : Option D

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129.  Apparatus to measure rate of respiration and R.Q. is

A. Auxanometer

B. Potometer

C. Respirometer

D. Manometer

Answer : Option C

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130.  Terminal cytochrome of respiratory chain which donates electrons to oxygen is

A. Cyt b

B. Cyt c

C. Cyt a

D. Cyt \(a_3\)

Answer : Option D

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