Which of the following complex is involved in the transfer of 4 hydrogen ions across the mitochondrial membrane?

(1) Complex I

(2) Complex II

(3) Complex V

(4) Complex IV

Subtopic:  Oxidative Phosphorylation | ETS:1 | ETS |
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Which of the following complex does not allow transfer of Protons across the mitochondrial membrane but transfer of electrones in the inner membrane?

(1) Complex II

(2) Complex III

(3) Complex IV

(4) Complex I

Subtopic:  Oxidative Phosphorylation | ETS:1 | ETS |
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Which of the following complex has got one Domain present in matrix and other domain in the inner membrane?

(1) Complex I

(2) Complex II

(3) Complex III

(4) Complex V

Subtopic:  ETS:2 | ETS:1 | ETS |
 67%
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Why does oxygen is important for complete oxidation of Glucose?

(1) Because it is limited to the terminal stage of the process

(2) Because it drives the whole process by removing hydrogens from the system

(3) It acts as the final hydrogen acceptor not the Electron acceptor

(4) Both B and C

Subtopic:  ETS:2 | ETS:1 | ETS |
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Why do we call it oxidative Phosphorylation?

(1) Because of the presence of oxygen

(2) Because here proton gradient is maintained by the energy of oxidation and reduction

(3) Because of the presence of ADP and oxygen

(4) Because of the presence of Phosphorylation derived by oxygen

Subtopic:  Oxidative Phosphorylation |
 71%
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The amount of energy which is produced by one molecule of FADHand one molecule of NADH?

(1) 2 ATPs, 3 ATPs

(2) 5 ATPs, 3 ATPs

(3) 3 ATPs, 3 ATPs

(4) 3 ATPs, 2 ATPs

Subtopic:  ETS:2 | ETS:1 | ETS |
 93%
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Which of the following gradient is observed in ETS?

(1) Chemical

(2) Electrical

(3) Osmotic

(4) Electrochemical

Subtopic:  ETS:2 | ETS:1 | ETS |
 65%
From NCERT
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Which of the following statements is incorrect?

(1) Glucose is the favoured substrate for respiration

(2) All carbohydrates are usually first converted into glucose before they are used for respiration

(3) Other respiratory substrates are also respired but they do not enter the respiratory pathway at very first step

(4) Fats directly enter the respiratory pathway

Subtopic:  Amphibolic Nature of Respiration |
 87%
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Glycerol and Fatty acids are the result of breaking down of Fats:

(1) Fatty acids enter at the step of formation of BPGA

(2) Fatty acids enter as acetyl CoA

(3) Fatty acids enter as PGAL

(4) Fatty acids enter as Pyruvate

Subtopic:  Amphibolic Nature of Respiration |
 84%
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The individual amino acid enter the respiratory pathway at

(1) Within Krebs’ cycle

(2) As Pyruvate or Acetyl CoA

(3) As PGAL

(4) Both A and B

Subtopic:  Amphibolic Nature of Respiration |
 72%
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