Respiration in Plants MCQs | Respiration in Plants Objective Type Questions and Answers

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Questions
1 Protons accumulate on the __________ in mitochondria.
A Inner membrane
B Intermembrane space
C Outer membrane
D None of the above

Answer:Intermembrane space
2 Oxidative phosphorylation usually refers to________
A Anaerobic production of ATP
B Citric acid cycle production of ATP
C Alcoholic fermentation
D None of the above

Answer: Citric acid cycle production of ATP
3 The process of cell respiration is carried out by _______
A Mitochondria
B Chloroplast
C Nucleus
D None of the above

Answer: Mitochondria
4 An important product of the Krebs cycle is
A Water
B Methane
C ATP
D None of the above

Answer:ATP
5 Acetyl CoA forms a 6-C compound after combining with
A Oxygen
B Pyruvic acid
C Citric acid
D Oxaloacetic acid

Answer:Oxaloacetic acid
6 The process of respiration in green plants occurs
A only when stomata are open
B only when photosynthesis ceases
C only when photosynthesis is in progress
D At all times

Answer: At all times
7 Respiratory enzymes are located in
A mitochondrial matrix
B cristae
C perimitochondrial space
D outer membrane

Answer: cristae
8 The site of glycolysis in a cell is
A chloroplast
B nucleus
C cytoplasm
D mitochondria

Answer:cytoplasm
9 Respiration is
A Anabolic process
B Exothermic process
C Endothermic process
D Endergonic process

Answer: Exothermic process
10 The annual plant exchange of gases takes place mainly through
A Leaf scars
B lenticels
C stomata
D stem

Answer: stomata
11 Kreb’s cycle take place in
A vesicles of ER
B Mitochondrial matrix
C lysosomes
D Dictyosomes

Answer: Mitochondrial matrix
12 Common immediate source of energy in cellular activity:
A NAD
B ATP
C DNA
D RNA

Answer: ATP
13 Photorespiration involves
A Glycolate cycle
B Kreb’s cycle
C Calvin cycle
D CAM cycle

Answer: Glycolate cycle
14 In succulent xerophytes the R.Q is :
A Zero
B unity
C less than one
D more than one

Answer: Zero
15 R.Q. of fatty substances is generally:
A unity
B Zero
C more than one
D less than one

Answer: less than one
16 Conversion of pyruvic acid into ethyl alcohol is facilitated by the enzymes:
A carboxylase
B phosphatase
C dehygrogenase
D carboxylase and dehygrogenase

Answer:carboxylase and dehygrogenase
17 During respiration yeast converts glucose to
A ethanol and water
B ethanol and oxygen
C ethanol and CO2
D lactic acid and CO2

Answer: ethanol and CO2
18 The net gain of ATP produced during the oxidation of one glucose molecule in a plant cell
A 38 ATP molecules
B 30 ATP molecules
C 36 ATP molecules
D 24 ATP molecules

Answer:36 ATP molecules
19 The final acceptor of electrons in the electron transport chain is
A Water
B Oxygen
C Hydrogen
D Cytochrome b

Answer: Oxygen
20 In plant cell, digestion of fats occurs with the help of
A lysosomes
B Peroxisomes
C glyoxisomes
D microtubules

Answer: glyoxisomes

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