Photosynthesis A2 Keywords LDS

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Light Dependant Stage (LDS)
The first stage of photosynthesis. Takes place in the Thylakoid Membrane. Produces ATP.
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Light Independant Stage (Calvin Cycle)
Second stage of Photosynthesis. Takes place in the stroma of the chloroplast. Produces ATP, Reduced NADP and Oxygen.
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ATP
Universal currency of energy. Releases and stores energy by the addition and subtraction of inorganic phosphate.
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NADP
Nicotinamide Adenine Dinucleotide Phosphate. A co-enzyme for Redox reactions. Stores electrons (e^-) and Protons for the Calvin Cycle. NADP+ + H+ + 2e- -> NADPH
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Photosystems
Lots of accessory pigment molecules surround a primary pigment molecule (Reaction Centre) in a cone-like structure. There are 2 types of Photosystem, PS1 = P700 (absorbs light best at 700 nm) and PS2 = P680 (absorbs light best at 680nm)
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Reaction Centre
A molecule of Chlorophyll a, which light is funneled into through the photosystem. These span the thylakoid membrane.
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Photophosphurylation
Formation of ATP using ADP and Pi using energy derived from light.
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Photolysis
When light energy is absorbed by PSII, some is used by an enzyme to split water molecules, generating waste oxygen.
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Card 2

Front

Second stage of Photosynthesis. Takes place in the stroma of the chloroplast. Produces ATP, Reduced NADP and Oxygen.

Back

Light Independant Stage (Calvin Cycle)

Card 3

Front

Universal currency of energy. Releases and stores energy by the addition and subtraction of inorganic phosphate.

Back

Preview of the back of card 3

Card 4

Front

Nicotinamide Adenine Dinucleotide Phosphate. A co-enzyme for Redox reactions. Stores electrons (e^-) and Protons for the Calvin Cycle. NADP+ + H+ + 2e- -> NADPH

Back

Preview of the back of card 4

Card 5

Front

Lots of accessory pigment molecules surround a primary pigment molecule (Reaction Centre) in a cone-like structure. There are 2 types of Photosystem, PS1 = P700 (absorbs light best at 700 nm) and PS2 = P680 (absorbs light best at 680nm)

Back

Preview of the back of card 5
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