OBJECTIVE LIFE SCIENCE
PLANT PHYSIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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nothing happens there is no energy
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glucose is synthesized from CO2
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Oxygen is being converted into sugar
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energy is generated in the form of ATP
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Detailed explanation-1: -The Interworkings of the Calvin Cycle. In plants, carbon dioxide (CO2) enters the chloroplast through the stomata and diffuses into the stroma of the chloroplast-the site of the Calvin cycle reactions where sugar is synthesized.
Detailed explanation-2: -The Calvin cycle is a light-independent reaction in photosynthesis and takes place in three steps, viz., carbon fixation, reduction and regeneration. For the fixation of six molecules of CO2, six turns of the cycle are required. Six turns of the Calvin cycle results in the synthesis of one molecule of glucose.
Detailed explanation-3: -Six “turns” of the Calvin cycle use chemical energy from ATP to combine six carbon atoms from six CO2 molecules with 12 “hot hydrogens” from NADPH. The result is one molecule of glucose, C6H12O6.