Plant Anatomy and Physiology MCQ question and answer with solution

61

Locial necrosis results in open wounds often sunken in stems and surrounded by living tissue which are known as

A) Blight B) Lesions C) Cankers D) Rot

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

62

Cuscuta is a

A) partial stem parasite B) complete stem parasite C) partial root parasite D) complete root parasite

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

63

Match List-I (Horizons of soil profile) with List-II (Contents) and select the correct answer:

List-I	List-II
a. O-horizon	1. Composed of fresh or partially decomposed organic material
b. A-horizon	2. Composed of weathered parent material
c. B-horizon	3. Composed of major organic matter, accumulated by the loss of clay, iron and aluminium
d. C-horizon	4. Composed of consolidated rock
e. R-horizon	5. Composed of alluvial concentration of all or any of the silicates, clay, iron, aluminium and humus, alone or in combination

A) a-1, b-2, c-3, d-4, e-5 B) a-5, b-2, c-4, d-3, e-1 C) a-1, b-3, c-5, d-2, e-4 D) a-2, b-4, c-1, d-3, e-5

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

64

Plants with crassulacean acid metabolism (CAM plants) exhibit different stomatal behaviour in that

A) The stomata are close at night and open during day B) The stomata are close both at night and during day C) The stomata are open at night and close during day D) The stomata are always open

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

65

Which of the following organelles of a cell is/are involved in photosynthesis?

A) Chloroplast B) Mitochondrion C) Endoplasmic reticulum D) Golgi bodies

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

66

In the context of respiration, the stage known as glycolysis involves the breaking down of . . . . . . . . to pyruvic acid.

A) lactic acid B) fructose C) citric acid D) glucose

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

67

Photosynthesis occurs in

A) Night B) Day and night C) Day or night D) Only day

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

68

According to the Calvin-Benson cycle, the first product to accumulate during photosynthesis is

A) Phosphoglyceraldehyde B) Oxaloacetic acid C) Phosphoglyceric acid D) Xylose phosphate

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

69

According to Yoda and Kira (1963), the principles of population regulation include:

A) The changes of a seed developing into a mature plant increase with rise in density B) The maximum size of a population is predetermined and the density can not be increased beyond this limit C) The populations of excessive density ultimately turn into different sizes D) The final density obtained in competition is far related to the morphology of the plant

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

70

The growth movements resulting from a difference between the rates of extension growth on opposite sides of an organ is called as

A) Paratonic movements B) Phototropism C) Gravitotropism D) Nastic movements

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Plant Anatomy and Physiology MCQ question and answer with solution | Biology Gk MCQs