NEETBotanyPhotosynthesis in Higher Plants
What is the purpose of chloroplast alignment in mesophyll cells?
Options
- ATo avoid light exposure
- BTo get the optimum quantity of incident light
- CTo store nutrients
- DTo facilitate gas exchange
Correct answer
B. To get the optimum quantity of incident light
Step-by-step solution
The mesophyll cells in the leaves have a large number of chloroplasts. Usually the chloroplasts align themselves along the walls of the mesophyll cells, such that they get the optimum quantity of the incident light. Within the chloroplast there is membranous system consisting of grana, the stroma lamellae, and the matrix stroma (Figure 11.2). 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 st