NEETBotanyPhotosynthesis in Higher Plants
What is the function of the membrane system in chloroplasts?
Options
- APhotosynthesis and protein synthesis
- BTrapping light energy and synthesis of ATP and NADPH
- CStorage of starch and lipids
- DGas exchange and water transport
Correct answer
B. Trapping light energy and synthesis of ATP and NADPH
Step-by-step solution
Within the chloroplast there is a 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 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 light dr