LABORATORY REVIEW
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The plant could not absorb nutrients from soil.
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The plant could not absorb water from the soil.
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The plant could not produce carbon dioxide and oxygen.
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The plant could not produce food through photosynthesis.
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Detailed explanation-1: -The glucose produced during photosynthesis is stored in the plant generally in the form of starch. In the absence of sunlight, the starch will be used up by the plants to obtain the nutrients. This helps maintain the life processes in plant even in the absence of light where photosynthesis does not occur.
Detailed explanation-2: -Without the sun, plants wouldn’t get the necessary food needed to grow, reproduce, and survive. Plants need three basic things to live: sunlight, water, and carbon dioxide. Through a process called photosynthesis, the plants use the energy from the sun to convert carbon dioxide, soil nutrients, and water into food!
Detailed explanation-3: -At night, or in the absence of light, photosynthesis in plants stops, and respiration is the dominant process. The plant uses energy from the glucose it produced for growth and other metabolic processes.
Detailed explanation-4: -Low light was shown to substantially affect the agronomic traits of plants and inhibit physiological metabolic processes, including photosynthesis and antioxidant characteristics, as well as carbon and nitrogen fixation [3–6]. It causes slow growth, decrease of leaf weight and flower bud number.
Detailed explanation-5: -So the plant might grow a bit in the dark, without photosynthesis, from stored reserves, and might continue to survive for a couple weeks or more without growing, but in the long term the plant will not be able to grow or live without photosynthesis and would eventually die.