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

Asked by 20th September 2009, 2:11 PM
Answered by Expert

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 Expert 24th September 2009, 3:54 PM
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