The upper epidermis. Light can get through it, and acts as a protective layer.
Photosynthesis: Carbon Dioxide+Water=(with energy from light)Glucose+Oxygen.
The Mesophyll has less chloroplasts then the pallisade mesophyll, but still has some and partakes in photosynthesis.
Pallisade Cell- In a leaf, the second layer down. The function is to photosynthesize and produce glucose for the plant.
Starch Grains (the little dots on the cell thingy.), are a temporary store in the leaf, and store glucose.
Plants have a permanent vacuole. It is filled with cell sap, which is a sticky mix of water and salts.it allows water to move from cell to cell as there are different water potenitals.
Chloroplasts:
- Have a double membrane: inner and outer.
- Inter membrane sapce inbetween these.
- Stack of structures. The single disc/pancakes type structure is a thylakoid, a stack is a granum, and lots of stacks stacked is a grana
- The stacks are connected by Lumella (thylakoid membrane?), for transport/communication.
- The light is ... recepted/taken in (can't think of a better word >_<) ... in the thylakoid membrane.
- The enzymes needed for photosynthesis are in the stoma. (Plasmy bit between stacks and stuff (: )
And that's all I have from my first unit two lesson. :D
Comments and corrections please? ^_^
Nin.
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