Q1Written answer
The ultimate electron acceptor of respiration in anaerobic organisms is:
a Cytochrome
b Oxygen
c Hydrogen
d Glucose
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Worked solution
Option (b) is the answer.
NCERT Exemplar · Class 11 · Biology
Chapter 14: Respiration in Plants
Practice each question, then open the answer or worked solution.
MULTIPLE CHOICE QUESTIONS
7 questionsQ2Written answer
Phosphorylation of glucose during glycolysis is catalysed by
a. Phosphoglucomutase
b. Phosphoglucoisomerase
c. Hexokinase
d. Phosphorylase
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Worked solution
Option (c) is the answer.
Q3Written answer
Pyruvic acid, the key product of glycolysis can have many metabolic
fates. Under the aerobic condition, it forms
a. Lactic acid
b. CO2 + H2O
c. Acetyl CoA + CO2
d. Ethanol + CO2
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Option (c) is the answer.
Q4Written answer
Electron Transport System (ETS) is located in mitochondrial
a. Outer membrane
b. Inter membrane space
c. Inner membrane
d. Matrix
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Option (c) is the answer.
Q5Written answer
Which of the following exhibits the highest rate of respiration?
a. Growing shoot apex
b. Germinating seed
c. Root tip
d. Leaf bud
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Worked solution
Option (b) is the answer.
Q6Written answer
Mitochondria are called powerhouses of the cell. Which of the following
Do observations support this statement?
a. Mitochondria synthesise ATP
b. Mitochondria have a double membrane
c. The enzymes of the Krebs cycle are found in mitochondria.
d. Mitochondria are found in almost all plants and animal cells.
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Option (a) is the answer.
Q7Written answer
The end product of oxidative phosphorylation is
a. NADH
b. Oxygen
c. ADP
d. ATP + H2OSolution:
Option (d) is the answer.
8. Match the following and choose the correct option from those given
below.
| Column I
A. Molecular oxygen B. Electron acceptor C. Pyruvate dehydrogenase D. Decarboxylation |
Column II
i. α – Ketoglutaric acid ii. hydrogen acceptor iii. cytochrome C iv. acetyl Co A |
Options
a. A-ii, B-iii, C-iv, D-i
b. A-iii, B-iv, C-ii, D-i
c. A-ii, B-i, C-iii, D-iv
d. A-iv, B-iii, C-i, D-ii
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Worked solution
Option (a) is the answer.