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    Help with the following light-dependent reactions: Noncyclic electron flow and the Calvin Cycle.

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    Help with the light-dependent reactions: Non-cyclic electron flow and The Calvin Cycle.

    I. Non-cyclic electron flow

    The first stage of photosynthesis is called non-cyclic electron flow. Photosynthesis begins when light energy enters what is called a photosystem, a cluster of pigment molecules in the thylakoid which reflect the light until it reaches a particular molecule of the pigment chlorophyll a. The particular photosystem that the light enters is called Photosystem II, and the chlorophyll a is called P680. The light energy is transferred to an electron in the P680 molecule. This high energy electron is released and accepted by a nearby electron acceptor molecule. Also, a water molecule is split into hydrogen ions and an oxygen atom, donating an electron to the P680 molecule to ...

    Solution Summary

    This solution discusses noncyclic electron flow and the Calvin cycle.