Chloroplasts
- Created by: vezting
- Created on: 29-04-16 09:12
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- Chloroplasts
- structure
- disc shaped between 2-10ym long
- each is surrounded by a double membrane- envelope
- outer membrane is permeable to many small ions
- inner membrane is less permeable and has transport proteins embedded in it
- inner membrane is folded into lamellae which are stacked to form grana
- thykaloid
- has a large surface area to have many photosynthetic pigments e.g. ATPsynthase and electron carriers
- all of theses things are needed for the light dependent reactions
- proteins in the grana hold the photosystems in place
- seen with an electron microscope
- stroma
- is a fluid filled matrix and the light independent happens here
- RUBISCO is found here
- stroma has starch grains, oil droplets, DNA and ribosomes
- grana
- stacks of flattened thylakoid membrane
- surrounded by the stroma so ATP and NADH can move to stroma for Calvin cycle
- structure
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