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Respiration in Plants MCQs | Respiration in Plants Short Questions and Answers

(1) Phosphrylation of glucose during glycolysis is catalysed by :
[A] Phosphoglucomutase
[B] Phosphoglucoisomerase
[C] Hexokinase
[D] Phosphorylase
Answer: Phosphorylase
(2) Pyruvic acid the key product of glycolysis has many fates; what are its products during aerobic respiration.
[A] Lactic acid
[B] CO2 + H2O
[C] Acetyl CO A + H2O
[D] Ethanol + CO2
Answer: Acetyl CO A + H2O
(3) Electron transport chain (ETS) is located in mitochondrial:
[A] Outer membrane
[B] intermembranal space
[C] Inner membrane
[D] matrix
Answer: intermembranal space
(4) Which of the following has highest rate of photosynthesis:
[A] Leaf bud
[B] Growing shoot apex
[C] Root tip
[D] Growing root tip
Answer: Growing shoot apex
(5) Mitochondria is called the powerhouse of cell because:
[A] It has mitochondral enzyme for kreb’s cycle and cytochromes
[B] It produces ATP as energy store house
[C] It is found in all plant and animal cell
[D] It has double membrane
Answer: It produces ATP as energy store house
(6) The end product of oxidative phosphorylation is:
[A] NADPH
[B] Oxygen
[C] ADP
[D] ATP + H2O
Answer: ATP + H2O
(7) Respiratry quotient of FATS is :
[A] equal to 1
[B] more than 1
[C] less than 1
[D] none of the above
Answer: less than 1
(8) Red muscle fibre are red due to the presence of:
[A] haemoglobin
[B] myoglobin
[C] megaloglobin
[D] rich no. of RBC
Answer: megaloglobin
(9) Nature of TCA cycle is:
[A] Catabolic
[B] Metabolic
[C] Amphibolic
[D] Anabolic
Answer: Amphibolic
(10) The number of glucose molecule required to produce 38 ATP molecules under anaerobic condition by a yeast cell is:
[A] 2
[B] 4
[C] 19
[D] 38
Answer: 19
(11) Which of the following does not function as an electron carrier?
[A] Coenzyme-Q
[B] Cytochrome-a
[C] Cytochrome-C
[D] H2O
Answer: H2O
(12) The process used to convert pyruvate to acetyl CoA is
[A] Oxidative dehydration
[B] Oxidative decarboxylation
[C] Oxidative dehydrgenation
[D] Oxidative dephosphorylation
Answer: Oxidative decarboxylation

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