Respiration in Plants Questions and Answers Part-1

1. Partial oxidation of glucose without the help of oxygen into pyruvic acid is known as
a) Glycolysis
b) Kreb’s cycle
c) ETS
d) All of these

Answer: a
Explanation: Partial oxidation of glucose without the help of oxygen into pyruvic acid is known as Glycolysis.

2. The scheme of glycolysis is given by
a) Embden
b) Meyerhof
c) Parnas
d) All of these

Answer: d
Explanation: All of these

3. Which of the following is correct about glycolysis (EMP pathway)?
a) It is a common path for aerobic and anaerobic respiration.
b) It occurs in cytoplasm.
c) \[O_{2}\] is not required for this process.
d) All the above

Answer: d
Explanation: All the above

4. Number of controlled steps required in glycolysis are:
a) 1
b) 5
c) 10
d) 15

Answer: c
Explanation: 10

5. In plant the end product of photosynthesis is
a) Sucrose
b) Starch
c) Glycogen
d) Glucose

Answer: a
Explanation: Sucrose

6. The enzyme which converts sucrose to glucose and fructose.
a) Maltase
b) Invertase
c) Lactase
d) Hexokinase

Answer: b
Explanation: Invertase

7. Glucose → Glu-6-phosphate occurs due to the enzyme
a) Hexokinase
b) Oxidase
c) Hydrolase
d) Lysase

Answer: a
Explanation: Hexokinase

8. Common to all living organism is
a) Kreb’s cycle
b) EMP pathway
c) ETC
d) All of these

Answer: b
Explanation: EMP pathway

9. 1 molecule of glucose on glycolysis produces
a) 2 molecule of pyruvic acid
b) 1 molecule of pyruvic acid
c) 2 molecule of \[CO_{2}\]
d) 2 molecule of \[O_{2}\]

Answer: a
Explanation: 2 molecule of pyruvic acid

10. Which of the following is a energy yielding process?
a) 2-phosphoglycerate to 2-phosphoenolpyruvate
b) Frutose to fructose-6-phosphate
c) Phosphoenolpyruvic acid to pyruvic acid
d) Fructose 1, 6-bisphosphate to PGAL and DHAP

Answer: c
Explanation: Phosphoenolpyruvic acid to pyruvic acid