17 terms

Light Reactions

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What are the purpose of light reactions?
To produce ATP and NADPH to for the Calvin Cycle
NADP+ is used as a....
Hydrogen and electron acceptor
Light
energy used to make electrons move to higher orbit
Photosystems II
the first electron transport chain makes ATP and uses electrons from light
Photosystem I
the second electron transport chain in the light reactions in electron movement, but it's called #1 since it was discovered first.
Products of light reaction
ATP, NADPH
What are the electrons used for after the photosystems and the electron transport chain?
Eventually, they will be used to reduce NAD to NADPH
What picks up the light?
Antenna pigment molecules
Source of electrons to replace Photosystem II
Splitting of Water
Water
Source of Oxygen Plant gives off
Production of ATP
ATP Synthase
Where do light reactions take place?
Thylakoid Membranes
H+ movement down concentration gradient
Turns/Powers the ATP Synthase
Two Reactants of Light Reactions (One is Energy)
Water and Light
grana
stroma
Production of ATP using light
photophosphorylation
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