Plant Anatomy and Physiology MCQ question and answer with solution

Section 1 Section 2 Section 3 Section 4 Section 5 Section 6 Section 7 Section 8 Section 9 Section 10

21.
Consider the following statements and choose the correct answer:
1. The integuments of the ovule become dry and firm, the seed coat
2. Insoluble food is formed in the ovule as a result of dehydration
3. In endospermic seeds the insoluble food is stored in cotyledons
4. The ovary wall forms the fruit wall which may be hard or fleshy

A. Only 1, 2 and 3 are true

B. Only 1, 3 and 4 are true

C. Only 1, 2 and 4 are true

D. Only 2, 3 and 4 are true

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22.
In the photosynthetic purple bacteria, the phototactic movements shown by them seem to be due to light absorbed by

A. Xanthophylls

B. Phyobilins

C. Carotenoids

D. Biliproteins

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23.
Who among the following has called a frontier or flat-earth concept of the world instead of spaceship or round-world view?

A. Smith (1977)

B. W. G. Rosen (1970)

C. Brodine (1973)

D. Southwick (1976)

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24.
Oxygen, which is liberated during photosynthesis comes from

A. Water

B. Carbon dioxide

C. Chlorophyll

D. Phosphoglyceric acid

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25.
Except which of the following steps, in all other steps the pair of electrons, released in respiration, reduces NAD⁺ to NADH ?

A. When isocitric acid is oxidised to oxalosuccinic acid

B. ∝-ketoglutaric acid to succinyl Co-A formation

C. During oxidation of succinic acid to fumaric acid

D. During oxidation of malic acid to oxaloacetic acid

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26.
When the water is trickling downwards due to gravity, a portion of the water is retained around and between the soil particles due to surface tension. This water is known as

A. Gravitational water

B. Hygroscopic water

C. Capillary water

D. Combined water

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27.
The uredospore stage of Puccinia is called the

A. Black rust stage

B. Red rust stage

C. Brown rust stage

D. Leaf rust stage

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28.
Which of these is a micronutrient for plants?

A. Carbon

B. Oxygen

C. Nitrogen

D. Boron

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29.
Consider the following statements regarding tobacco mosaic viruses and choose the correct answer:
1. Tobacco mosaic viruses are sap transmissible
2. These can stand a high degree of dilution
3. Breaking of a hair with contaminated instrument serves as a means of transmitting the virus
4. These viruses are insect borne

A. Only 1 and 4 are true

B. Only 3 and 4 are true

C. Only 1, 2 and 3 are true

D. Only 2, 3 and 4 are true

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30.
Red-rot of sugarcane was first observed by

A. Went (1893)

B. Burril (1878)

C. Robert Koch (1876)

D. Stanley (1935)

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

Answer & Solution

22. In the photosynthetic purple bacteria, the phototactic movements shown by them seem to be due to light absorbed by

Answer & Solution

23. Who among the following has called a frontier or flat-earth concept of the world instead of spaceship or round-world view?

Answer & Solution

24. Oxygen, which is liberated during photosynthesis comes from

Answer & Solution

25. Except which of the following steps, in all other steps the pair of electrons, released in respiration, reduces NAD+ to NADH ?

Answer & Solution

26. When the water is trickling downwards due to gravity, a portion of the water is retained around and between the soil particles due to surface tension. This water is known as

Answer & Solution

27. The uredospore stage of Puccinia is called the

Answer & Solution

28. Which of these is a micronutrient for plants?

Answer & Solution

Answer & Solution

30. Red-rot of sugarcane was first observed by

Answer & Solution

Read More Section(Plant Anatomy and Physiology)

22.
In the photosynthetic purple bacteria, the phototactic movements shown by them seem to be due to light absorbed by

23.
Who among the following has called a frontier or flat-earth concept of the world instead of spaceship or round-world view?

24.
Oxygen, which is liberated during photosynthesis comes from

25.
Except which of the following steps, in all other steps the pair of electrons, released in respiration, reduces NAD⁺ to NADH ?

26.
When the water is trickling downwards due to gravity, a portion of the water is retained around and between the soil particles due to surface tension. This water is known as

27.
The uredospore stage of Puccinia is called the

28.
Which of these is a micronutrient for plants?

30.
Red-rot of sugarcane was first observed by