help me...... please

Asked by Rishabh1 | 1st Jul, 2009, 05:02: PM

Expert Answer:

Stroma is the homogenous matrix present within the membrane of chloroplast. Grana are the disc-like plates embedded in the stroma of the chloroplast. Grana are connected to each other by intergranal lamellae.

The grana of the chloroplast consists of pigment system made up of chlorophyll-a, chlorophyll-b, carotine and xanthophyll while the stroma contains relevant enzymes required for photosynthesis as well as DNA, RNA and cytochrome system.

Answered by  | 2nd Jul, 2009, 08:11: AM

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