Question

Direction: Arrange the following events of electron flow during the light reaction. Use numbers 1-5.

______ This transfer of (H+), along with the release of (H+) from the splitting of water, forms a proton gradient that will be used to make ATP.
______ As the electron moves through this electron transport chain, it goes from a higher to a lower energy level, releasing energy.
______ Some of the energy is used to pump protons (H+), start superscript, plus, end superscript) from the stroma (outside of the thylakoid) into the thylakoid interior.
______ Once an electron has gone down the first leg of the electron transport chain, it arrives at PSI, where it joins the chlorophyll in a special pair called P700.
__6__ NADP + reductase transfers electrons to the electron carrier NADP+ to make NADPH.
__7__ NADPH will travel to the Calvin cycle, where its electrons are used to build sugars from carbon dioxide.
______ Excited P700 is a very good electron donor, and it sends its electron down a short electron transport chain. In this series of reactions, the electron is first passed to a protein called ferredoxin (Fd), then transferred to an enzyme called NADP+ reductase.

Answer 1

Answer:

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