2. Grana - stacks of disc-shaped thylakoid membrane.
3.Thylakoids - contain chlorophyll used in photosynthesis, can be linked
by lamellae
, to other grana.
4. Stroma - fluid-filled matrix where Calvin Cycle takes place. Also
contains starch grains.
6. Functions of Chloroplasts.: Site of Photosynthesis:
LDR in thylakoid
membranes. LIR in
stroma.
1. Granal membranes provide a large SA for LDR - photosystems, e-
carriers and enzymes etc.
2. Chloroplasts contain DNA and ribosomes - can quickly and easily
manufacture some of the proteins needed for photosynthesis.
7. Structure of Endoplasmic Reticulum.: 1. 3D system of sheet-like
membranes
- continuous with the outer membrane of the nuclear double membrane.
2. Membrane contains a network of tubules and flattened sacs called
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