Q.1
Emerson's enhancement effect and Red drop have been instrumental in the discovery of :- …[AIPMT-2016]
  • a) Photophosphorylation and non-cyclic electron transport
  • b) Two photosystems operating simultaneously
  • c) Photophosphorylation and cyclic electron transport
  • d) Oxidative phosphorylation
Q.2
The three boxes in this diagram represent the three major biosynthetic pathways in aerobic respiration. Arrows represent net reactants or products …[NEET 2013] Arrows numbered 4, 8, and 12 can all be
unit-4_ch-5_que_no-362_img_no1.png
  • a) NADH
  • b) ATP
  • c) H2O
  • d) FAD+ or FADH2
Q.3
Which of the metabolites is common to respiration mediated breakdown of fats, carbohydrates and proteins? …[NEET 2013]
  • a) Glucose-6-phosphate
  • b) Fructose 1,6-bisphosphate
  • c) Pyruvic acid
  • d) Acetyl CoA
Q.4
Which of the following biomolecules is common to respiration-mediated breakdown of fat s, carbohydrates and proteins ? …[NEET 2016]
  • a) Pyruvic acid
  • b) Acetyl CoA
  • c) Glucose-6-phosphate
  • d) Fructose 1,6-bisphosphate
Q.5
Oxidative phosphorylation is :- …[NEET 2016]
  • a) Addition of phosphate group to ATP.
  • b) Formation of ATP by energy released from electrons removed during substrate oxidation.
  • c) Formation of ATP by transfer of phosphate group from a substrate to ADP
  • d) Oxidation of phosphate group in ATP
Q.6
Which statement is wrong for Krebs' cycle? ….[NEET- 2017]
  • a) There are three points in the cycle where NAD+ is reduced to NADH + H+
  • b) There is one point in the cycle where FAD+ is reduced to FADH2
  • c) During conversion of succinyl CoA to succinic acid, a molecule of GTP is synthesised
  • d) The cycle starts with condensation of acetyl group (acetyl CoA) with pyruvic acid to yield citric acid
Q.7
What is the role of NAD+ in cellular respiration ? [NEET 2018]
  • a) It functions as an enzymes
  • b) It functions as an electron carrier
  • c) It is a nucleotide source for ATP synthesis
  • d) It is the final electron acceptor for anaerobic respiration
Q.8
Which of these statements is incorrect ? [NEET 2018]
  • a) Enzymes of TCA cycle are present in mitochondrial matrix.
  • b) Glycolysis occurs in cytosol.
  • c) Glycolysis operates as long as it is supplied with NAD that can pick up hydrogen atoms.
  • d) Oxidative phosphorylation takes place in outer mitochondrial membrane.
Q.9
he complex V in ETS can be inhibitted by which of the following? Question submitted by Leo Leo
  • a) CO
  • b) oligimycin
  • c) pyruvic acid
  • d) antimycin
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