Q.1.
Emerson's enhancement effect and Red drop have been instrumental in the discovery of :- …[AIPMT-2016]
-
33%
a) Photophosphorylation and non-cyclic electron transport
-
33%
b) Two photosystems operating simultaneously
-
33%
c) Photophosphorylation and cyclic electron transport
-
0%
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
-
43%
a) NADH
-
29%
b) ATP
-
29%
c) H2O
-
0%
d) FAD+ or FADH2
Q.3.
Which of the metabolites is common to respiration mediated breakdown of fats, carbohydrates and proteins? …[NEET 2013]
-
33%
a) Glucose-6-phosphate
-
17%
b) Fructose 1,6-bisphosphate
-
33%
c) Pyruvic acid
-
17%
d) Acetyl CoA
Q.4.
Which of the following biomolecules is common to respiration-mediated breakdown of fat s, carbohydrates and proteins ? …[NEET 2016]
-
20%
a) Pyruvic acid
-
40%
b) Acetyl CoA
-
40%
c) Glucose-6-phosphate
-
0%
d) Fructose 1,6-bisphosphate
Q.5.
Oxidative phosphorylation is :- …[NEET 2016]
-
20%
a) Addition of phosphate group to ATP.
-
80%
b) Formation of ATP by energy released from electrons removed during substrate oxidation.
-
0%
c) Formation of ATP by transfer of phosphate group from a substrate to ADP
-
0%
d) Oxidation of phosphate group in ATP
Q.6.
Which statement is wrong for Krebs' cycle? ….[NEET- 2017]
-
0%
a) There are three points in the cycle where NAD+ is reduced to NADH + H+
-
75%
b) There is one point in the cycle where FAD+ is reduced to FADH2
-
25%
c) During conversion of succinyl CoA to succinic acid, a molecule of GTP is synthesised
-
0%
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]
-
0%
a) It functions as an enzymes
-
75%
b) It functions as an electron carrier
-
25%
c) It is a nucleotide source for ATP synthesis
-
0%
d) It is the final electron acceptor for anaerobic respiration
Q.8.
Which of these statements is incorrect ? [NEET 2018]
-
25%
a) Enzymes of TCA cycle are present in mitochondrial matrix.
-
25%
b) Glycolysis occurs in cytosol.
-
0%
c) Glycolysis operates as long as it is supplied with NAD that can pick up hydrogen atoms.
-
50%
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
-
25%
a) CO
-
0%
b) oligimycin
-
50%
c) pyruvic acid
-
25%
d) antimycin