Respiration in Plants
1. Which of the following complex in ETS during (ii) In fermentation less than 7% of the energy in
aerobic respiration is not involved in the electron glucose is released.
transfer ? (iii) Net gain in both types of fermentation is 4 ATP
(1) Complex I and II (with respect to one glucose molecule)
(2) Complex II and III (iv) During glycolysis enzyme involved in
(3) Complex IV phosphorylation of hexose sugar is Enolase
(4) Complex V (1) i, ii, iii
2. Which of the following product is formed by Krebs (2) ii, iii, iv
cycle ? (3) i and ii
(1) NADPH + H+ (4) ii and iii
(2) ADP 6. Mark the incorrect statement
(3) ATP (1) Cytochrome C is a peripheral protein
(4) NADP+ (2) RQ of maturing fatty seeds is > 1
3. Mark the correct statement (3) Succinyl CoA is an intermediate of TCA cycle
(1) Fats are preferred energy fuel (4) In glycolysis, during oxidation electrons are removed
(2) Glycerol enters glycolysis through serine formation by molecular oxygen
(3) In cellular respiratory ETS, electron movement 7. Read the following statements and state True (T) or
releases energy False (F)
(4) A number of TCA cycle intermediates are used in A. Oligomycin inhibits oxidative phosphorylation
various catabolic reactions only. B. During aerobic respiration, end products are lactic
4. How many ATP will be produced from two acid or alcohol
molecules of succinyl CoA till it gets catabolised into C. The RQ value of oxalic acid is 4.
oxaloacetic acid through oxidative phosphorylation D. Cytochrome-c is a non-mobile protein attached to
only inner membrane
(1) 10
Select the correct option
(2) 11
(3) 12 A B C D
(4) 8 (1) T F T F
5. Read the following statement from i – iv and (2) T T T F
identify the correct ones (3) T F F T
(i) Yeast poison themselves to death when the (4) T T F T
concentration of alcohol reaches about 13%
, 8. Site of link reaction is 13. Find the incorrect match from the following
(1) Mitochondrial matrix (1) Glycolysis – Cytosol
(2) Cytoplasm (2) β-oxidation of fatty acids – Mitochondrial matrix
(3) Perimitochondrial space (3) ETC – Inner mitochondrial membrane
(4) Both (1) & (3) (4) TCA cycle – Ribosome
9. How many ATP will be formed through substrate
14. The metallic ions that are required in the first step
level phosphorylation in Krebs’ cycle for one molecules
and last step of glycolytic pathway are A and B and
of sucrose ?
these are activator molecule of enzyme C. A, B and C
(1) 1
respectively represents
(2) 4
(1) Mn²⁺, K⁺ and Enolase
(3) 2
(2) Mg²⁺, K⁺ and Pyruvate kinase
(4) 6
(3) Ca²⁺, Mg²⁺ and Kinase
10. In aerobic respiration
(4) Mn²⁺, Mg²⁺ and Mutase
(i) Oxygen acts as terminal electron acceptor
(ii) Transfer of electrons from Complex III to Complex 15. Find the correct statement from the following
IV occurs by cytochrome oxidase (1) Alcoholic fermentation of pyruvate requires only
(iii) Ubiquinone also receives reducing equivalent via alcohol dehydrogenase
FADH2 (2) Lactobacillus lacti is a heterofermentative lactic acid
(iv) Krebs’ cycle doesn’t involve any substrate level bacteria
phosphorylation (3) Less than seven percent of the energy in glucose is
Which of the above statements are true ? released during fermentation
(1) i, ii, iv (4) CO₂ is released during lactic acid fermentation
(2) ii, iii, iv
16. Read the statement carefully
(3) i and iii
A. Three NADH + H⁺ and one FADH₂ molecules are
(4) i and ii
generated during two turns of TCA cycle
11. The term floating respiration is used for the
B. Two molecules of CO₂ are released per molecule of
oxidation of ________
acetyl CoA oxidized in TCA cycle
(1) Carbohydrate and Fat
C. The continued oxidation of acetyl CoA via the TCA
(2) Organic acid
cycle requires the continued replenishment of OAA.
(3) Fat and organic acid
D. Krebs’ cycle is an amphibolic pathway
(4) Protein and Fat
How many of the above statements are correct?
12. How many enzyme complex/complexes is/are
(1) All are correct except A
involved in oxidative phosphorylation ?
(2) A, B and D are correct
(1) Four (2) Five
(3) A and B are incorrect
(3) One (4) Two
(4) A, B, C and D are correct
1. Which of the following complex in ETS during (ii) In fermentation less than 7% of the energy in
aerobic respiration is not involved in the electron glucose is released.
transfer ? (iii) Net gain in both types of fermentation is 4 ATP
(1) Complex I and II (with respect to one glucose molecule)
(2) Complex II and III (iv) During glycolysis enzyme involved in
(3) Complex IV phosphorylation of hexose sugar is Enolase
(4) Complex V (1) i, ii, iii
2. Which of the following product is formed by Krebs (2) ii, iii, iv
cycle ? (3) i and ii
(1) NADPH + H+ (4) ii and iii
(2) ADP 6. Mark the incorrect statement
(3) ATP (1) Cytochrome C is a peripheral protein
(4) NADP+ (2) RQ of maturing fatty seeds is > 1
3. Mark the correct statement (3) Succinyl CoA is an intermediate of TCA cycle
(1) Fats are preferred energy fuel (4) In glycolysis, during oxidation electrons are removed
(2) Glycerol enters glycolysis through serine formation by molecular oxygen
(3) In cellular respiratory ETS, electron movement 7. Read the following statements and state True (T) or
releases energy False (F)
(4) A number of TCA cycle intermediates are used in A. Oligomycin inhibits oxidative phosphorylation
various catabolic reactions only. B. During aerobic respiration, end products are lactic
4. How many ATP will be produced from two acid or alcohol
molecules of succinyl CoA till it gets catabolised into C. The RQ value of oxalic acid is 4.
oxaloacetic acid through oxidative phosphorylation D. Cytochrome-c is a non-mobile protein attached to
only inner membrane
(1) 10
Select the correct option
(2) 11
(3) 12 A B C D
(4) 8 (1) T F T F
5. Read the following statement from i – iv and (2) T T T F
identify the correct ones (3) T F F T
(i) Yeast poison themselves to death when the (4) T T F T
concentration of alcohol reaches about 13%
, 8. Site of link reaction is 13. Find the incorrect match from the following
(1) Mitochondrial matrix (1) Glycolysis – Cytosol
(2) Cytoplasm (2) β-oxidation of fatty acids – Mitochondrial matrix
(3) Perimitochondrial space (3) ETC – Inner mitochondrial membrane
(4) Both (1) & (3) (4) TCA cycle – Ribosome
9. How many ATP will be formed through substrate
14. The metallic ions that are required in the first step
level phosphorylation in Krebs’ cycle for one molecules
and last step of glycolytic pathway are A and B and
of sucrose ?
these are activator molecule of enzyme C. A, B and C
(1) 1
respectively represents
(2) 4
(1) Mn²⁺, K⁺ and Enolase
(3) 2
(2) Mg²⁺, K⁺ and Pyruvate kinase
(4) 6
(3) Ca²⁺, Mg²⁺ and Kinase
10. In aerobic respiration
(4) Mn²⁺, Mg²⁺ and Mutase
(i) Oxygen acts as terminal electron acceptor
(ii) Transfer of electrons from Complex III to Complex 15. Find the correct statement from the following
IV occurs by cytochrome oxidase (1) Alcoholic fermentation of pyruvate requires only
(iii) Ubiquinone also receives reducing equivalent via alcohol dehydrogenase
FADH2 (2) Lactobacillus lacti is a heterofermentative lactic acid
(iv) Krebs’ cycle doesn’t involve any substrate level bacteria
phosphorylation (3) Less than seven percent of the energy in glucose is
Which of the above statements are true ? released during fermentation
(1) i, ii, iv (4) CO₂ is released during lactic acid fermentation
(2) ii, iii, iv
16. Read the statement carefully
(3) i and iii
A. Three NADH + H⁺ and one FADH₂ molecules are
(4) i and ii
generated during two turns of TCA cycle
11. The term floating respiration is used for the
B. Two molecules of CO₂ are released per molecule of
oxidation of ________
acetyl CoA oxidized in TCA cycle
(1) Carbohydrate and Fat
C. The continued oxidation of acetyl CoA via the TCA
(2) Organic acid
cycle requires the continued replenishment of OAA.
(3) Fat and organic acid
D. Krebs’ cycle is an amphibolic pathway
(4) Protein and Fat
How many of the above statements are correct?
12. How many enzyme complex/complexes is/are
(1) All are correct except A
involved in oxidative phosphorylation ?
(2) A, B and D are correct
(1) Four (2) Five
(3) A and B are incorrect
(3) One (4) Two
(4) A, B, C and D are correct
