BIOSC 0715 Lecture Notes - Lecture 15: Thylakoid, Atp Synthase, P700
17 May 2017
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Leaves: stomata allow entry of co2 and release of o2, waxy cuticle keeps water from being released, spongey areas. Chloroplast: similar to mitochondria own dna, double membrane, has pigments, thylakoids stacked like coins, surrounded by stroma (not stoma, stacks are called granum. Light dependent reactions in the thylakoid (where the pigment is: h2o donates electrons (oxidized), o2 is released, nad in catabolic reactions, for example, breakdown of sugars, nadph in anabolic reactions, seen in synthesis. Light independent reactions in the stroma: carbon-carbon bonds of sugar are assembled using the products of the light reactions. Pigments: chlorophyll a, accessory pigments, chlorophyll b, carotenoids. When you see a plant that is very yellow, it is probably because it is low in magnesium. Antennae: receive electron energy and pass to reaction center. Reaction center: receive electron energy and pass to electron acceptor. Two photosystems: both have chloroplast, antennae, reaction center, and primary electron acceptor, p700 generates nadph, z scheme.
