LABORATORY REVIEW
CELL RESPIRATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Sunlight
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Chlorophyll
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Oxygen
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Carbon dioxide
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Detailed explanation-1: -Photosynthesis is the process of synthesis of food by plants using carbon dioxide and water in presence of sunlight and chlorophyll. Oxygen (O2) is released during the process as a waste product. Hence, oxygen is not essential for the process of photosynthesis.
Detailed explanation-2: -Oxygen is not a limiting factor as it is never considered as an element required for photosynthesis. It is released as a byproduct during photosynthesis.
Detailed explanation-3: -Oxygen (O2) is evolved during photosynthetic electron transport when water is split by the oxygen-evolving complex to provide protons and electrons to the chloroplastic electron chain, thereby generating ATP and NADPH-the energy source and reducing power for plant metabolism.
Detailed explanation-4: -The correct answer is ‘photosynthetic bacteria’.