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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-8 section-1

Each section contains 100 MCQs on Plant Anatomy and Physiology .
71
Which of the following seems the most appropriate energy level responsible for electron transfer in the reduction of a chemical acceptor and the initiation of the electron flow for ATP production?
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Answer: Option C
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72
Which of the following act as antisenescent hormones in leaves?
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Answer: Option B
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73
What is the impact of advancing glaciers on the rings of trees?
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Answer: Option B
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74
There is a loss of enzyme activity when denaturation of proteins occurs at a temperature ranging between
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Answer: Option D
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75
When an organ grows at an intermediate angle i.e. between 0° to 90° or between 90° to 180° from the vertical, it is said to be
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Answer: Option B
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76
The seeds of certain plants fail to germinate, if they do not pass through the digestive tract of fruit-eating birds. This is due to
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Answer: Option B
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77
Consider the following statements regarding recurrent type apomixis and choose the correct answer:
1. There is meiosis during the formation of megaspore
2. The embryo sac is diploid in nature
3. The embryo sac never develops from a cell of the archesporium
4. The development of embryo from a cell of an embryo sac other than egg is known as apospory
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Answer: Option D
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78
Each biome blends with the next through a fairly broad transition region known as
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Answer: Option B
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79
Consider the following statements and choose the correct answer:
1. The immediate precursor of gibberellin is the diterpene kaurene
2. The gibberellins are compounds consisting of the ent-gibberellane skeleton or ent-20 norgibberellane
3.The gibberellins are easily inter-convertible in the organism by changes in the hydroxyl substitutions
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Answer: Option A
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80
Total soil-moisture stress represents
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Answer: Option B
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