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NEETBotanyPhotosynthesis in Higher Plants

What is the main function of grana in chloroplasts?

Options

  1. AStorage of starch
  2. BTrapping light energy
  3. CGas exchange
  4. DProtein synthesis

Correct answer

B. Trapping light energy

Step-by-step solution

Within the chloroplast there is membranous system consisting of grana, the stroma lamellae, and the matrix stroma. There is a clear division of labour within the chloroplast. The membrane system(grana) is responsible for trapping the light energy and also for the synthesis of ATP and NADPH. In stroma, enzymatic reactions synthesise sugar, which in turn forms starch. The former set of reactions, since they are directly light driven are called light reactions (photochemical reactions). The latter are not directly lig

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