Stick The Picture of Granna or Thailecoid.Explain The Both.

Asked by  | 20th Sep, 2009, 02:11: PM

Expert Answer:

Inside the chloroplasts are stacks of discs called thylakoids. They are sac like structures. Thylakoids consists of a thylakoid membrane surrounding a thylakoid lumen. The thylakoid membrane is the site of the light-dependent reactions of photosynthesis with the photosynthetic pigments embedded directly in the membrane and they act to trap the energy from sunlight.

 A granum (plurl grana) is a stack of thylakoid discs. Chloroplasts can have from 10 to 100 grana. Grana are connected by intergranal lamellae. Grana contribute to chloroplasts' large surface area to volume ratio.

Answered by  | 24th Sep, 2009, 03:54: PM

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