Photosynthesis: Light-Dependent Reactions

The photoexcited electron is then transferred to PS I’s primary ______ acceptor, creating an electron hole in the P700—

Electrons are passed in a series of ______ reactions from the primary electron acceptor of PS I down a second electron transport chain through the protein ferredoxin (Fd).

The enzyme ______ reductase catalyzes the transfer of electrons from Fd to NADP+.

The concentration of NADPH will help regulate which pathway; ______ or cyclic.

If the chloroplast runs low on ATP for the Calvin cycle, NADPH will begin to ______.

Under certain conditions, photoactivated electron takes an alternative path called ______ electron flow.

The electron from ______ is transferred to cytochrome complex and plastocyanin.

Through ______ PHOTOPHOSPHORYLATION, ATP and NADPH are generated.

The Calvin cycle uses ______ and NADPH to convert CO2 to glucose/sugar.

In the Calvin cycle, ______ is the source of energy.

In the Calvin cycle, ______ is the reducing agent.

The ______ of water is the source of oxygen in the light reaction.

The energy is transferred from one pigment to another until it is passed to the pair of ______ a molecules in the reaction-center complex of PSII.

The electrons are supplied one by one to the P680+ pair, each electron replacing one transferred to the primary ______ acceptor.

The electron transport chain between PS II and PS I is made up of the electron carrier ______ (Pq), a cytochrome complex, and a plastocyanin (Pc).

Each component carries out ______ reactions as electrons flow down the electron transport chain, releasing free energy that is used to pump protons (H+ ) into the thylakoid space.

The potential energy stored in the proton gradient is used to make ATP in a process called ______.

The electron transport chain between PS II and PS I is made up of the electron carrier plastoquinone (Pq), a ______ complex, and a plastocyanin (Pc).