PHOTOSYNTHESIS
THE CALVIN CYCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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G3P
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RuBisco
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ATP Synthase
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PGA
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Detailed explanation-1: -(a) An enzyme, RuBP carboxylase, catalyzes both the joining of carbon dioxide with RuBP and the joining of oxygen gas with RuBP. The two molecules are alternative substrates that compete with each other for the same active site on the enzyme.
Detailed explanation-2: -Rubisco can bind to either carbon dioxide or oxygen depending on environmental conditions. Binding to carbon dioxide and initiation of the Clavin cycle is favored at low temperatures and at a high carbon dioxide-to-oxygen ratio.
Detailed explanation-3: -Rubisco takes carbon dioxide and attaches it to ribulose bisphosphate, a short sugar chain with five carbon atoms.
Detailed explanation-4: -Ribulose-1, 5-bisphosphate carboxylase/oxygenase (RubisCO) is arguably one of the most abundant proteins in the biosphere and a key enzyme in the global carbon cycle.