1. Which of the following is correct about cytochrome?
a) Small protein attaches to the outer surface of inner membrane of mitochondria.
b) Act as mobile carrier.
c) Transfers electron between complex III and IV.
d) All the above
Explanation: All the above
2. 1 molecule of NADH gives rise to ________ molecules of ATP, while 1 molecule of FADH2
gives ________ molecule of ATP
a) 3,2
b) 2,3
c) 2,2
d) 3,3
Explanation: 1 molecule of NADH gives rise to 3 molecules of ATP, while 1 molecule of FADH2 gives 2 molecule of ATP
3. \[O_{2}\] acts as
a) Terminal hydrogen acceptor
b) Terminal electron acceptor
c) Both (a) and (b)
d) none of these
Explanation: Both (a) and (b)
4. Which type of phosphorylation occurs in mitochondria?
a) Oxidative phosphorylation
b) Substrate level phosphorylation
c) Photophosphorylation
d) Both (a) and (b)
Explanation: Both (a) and (b)
5.When \[12H^{+}\] pass through \[F_{0}-F_{1}\] particle, how many ATPs are produced?
a) 6 ATP
b) 4 ATP
c) 8 ATP
d) 10 ATP
Explanation: 6 ATP
6.Identify A, B, C and D in the given figure.
a) A–Outer side, B–Inner mitochondrial membrane, C–Inner membrane part, D–ATP
b) A–Inner membrane part, B–Outer side, C–Inner mitochondrial membrane, D–ATP
c) A–ATP, B–Inner membrane part, C–Outer side, D–Inner mitochondria membrane
d) A–Inner mitochondrial membrane, B–ATP, C–Outer side, D–Inner membrane part
Explanation: A–Outer side, B–Inner mitochondrial membrane, C–Inner membrane part, D–ATP
7. To form a respiratory balance sheet, the calculations can be made on certain assumptions like
a) There is a sequential pathway functioning like glycolysis, TCA cycle and ETS following
one after another.
b) NADH formed in glycolysis is transferred to mitochondria and undergoes oxidative
phosphorylation.
c) None of the intermediates in the pathway are utilized to synthesize any other compound
and glucose is being respired no other alternative substrate are entering in the pathway at
any of the intermediary stages.
d) All of above
Explanation: All of above
8. How many molecules of ATP are produce by oxidation of 1 molecule of glucose?
a) 30
b) 36
c) 4
d) 40
Explanation: 36 molecules
9. Which of the following is incorrect about fermentation?
a) It accounts for the partial breakdown of glucose.
b) Net gain is only 2 ATP.
c) The NADH to NAD+ formation reaction is vigorous.
d) It occurs in cytoplasm.
Explanation: "The NADH to NAD+ formation reaction is vigorous". This is incorrect.
10. Respiratory pathway is best defined as
a) Catabolic pathway
b) Anabolic pathway
c) Amphibolic pathway
d) None of these
Explanation: Respiratory pathway is best defined as Amphibolic pathway.