PHOTOSYNTHESIS
THE CALVIN CYCLE
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[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Detailed explanation-1: -A G3P molecule contains three fixed carbon atoms, so it takes two G3Ps to build a six-carbon glucose molecule.
Detailed explanation-2: -Because TP only contains three carbon atoms, and we know that glucose contains six carbon atoms, we need two TP molecules to make one glucose.
Detailed explanation-3: -Two turns are needed because glycolysis produces two pyruvate molecules when it splits glucose. Figure 5.9.
Detailed explanation-4: -When one CO2 molecule is fixed as one molecule of triose phosphate, which of the following photochemically made, high energy chemical intermediates are used in the reduction phase? 1. 1 ATP + 1 NADPH.
Detailed explanation-5: -It is converted into ADP + Pi, which are reconverted into ATP in the light-dependent reactions. Some of the triose phosphate (two molecules out of the twelve) is removed from the cycle, to be converted into glucose, or other molecules such as starch, lipid or protein.