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

Learn Plant Anatomy and Physiology MCQ Questions and answers with easy and logical explanations in Biology Gk . Plant Anatomy and Physiology MCQ question provides all type of technical mcq questions which is important for SSC-CGL, UPPSC, NDA, CDS and all govt examinations Page-3 section-3

Each section contains 100 MCQs on Plant Anatomy and Physiology .
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
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Answer & Solution
Answer: Option C
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22
In the photosynthetic purple bacteria, the phototactic movements shown by them seem to be due to light absorbed by
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Answer: Option C
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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?
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Answer: Option B
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24
Oxygen, which is liberated during photosynthesis comes from
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Answer: Option A
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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 ?
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Answer: Option C
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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
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Answer: Option C
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27
The uredospore stage of Puccinia is called the
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Answer: Option B
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28
Which of these is a micronutrient for plants?
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Answer: Option D
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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
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Answer & Solution
Answer: Option C
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30
Red-rot of sugarcane was first observed by
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Answer: Option A
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