OBJECTIVE LIFE SCIENCE
DEVELOPMENTAL BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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List three external conditions required for seed germination
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soil, water, air
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suitable temperature, water, sunlight
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oxygen, water, suitable temperature
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None of the above
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Explanation:
Detailed explanation-1: -So, the correct answer is ‘Oxygen, moisture and suitable temperature’
Detailed explanation-2: -Oxygen is necessary for the germination because respiration increases sharply during seed germination. Since respiration is essentially for oxidation of food to produce energy. Thus, an adequate supply of oxygen is a must for the germination.
Detailed explanation-3: -Germination requires the breakdown of storage compounds, and this metabolism depends upon respiration, making oxygen one of the limiting factors in seed germination. In microgravity lack of run-off of excess water requires careful testing of water dispensation and oxygen availability.
There is 1 question to complete.