Identify the event(s) that form part of the Calvin cycle.
Protons (H+) are moved against their concentration gradient.
Carbon dioxide (CO2) is incorporated into a preexisting sugar molecule.
Light energy is absorbed by a pigment molecule.
ATP and NADPH are produced.
I think correct answer is, "Carbon dioxide (CO2) is incorporated into a preexisting sugar molecule."
it is
Yes, you are correct. The event that forms part of the Calvin cycle is the incorporation of carbon dioxide (CO2) into a preexisting sugar molecule.
Your answer is partially correct. The event you mentioned, "Carbon dioxide (CO2) is incorporated into a preexisting sugar molecule," is indeed one of the events that form part of the Calvin cycle. However, there are two additional events in the list above that are also part of the Calvin cycle:
1. Protons (H+) are moved against their concentration gradient: This event refers to the movement of protons across a membrane to create a proton gradient, which is later used to produce ATP during the Calvin cycle.
2. ATP and NADPH are produced: This event refers to the production of ATP (adenosine triphosphate) and NADPH (nicotinamide adenine dinucleotide phosphate), which are energy-rich molecules that provide the energy and reducing power needed for the Calvin cycle to occur.
So, to summarize, the correct answer is that all the events mentioned in the options (Protons are moved against their concentration gradient, Carbon dioxide is incorporated into a preexisting sugar molecule, Light energy is absorbed by a pigment molecule, ATP and NADPH are produced) form part of the Calvin cycle.