Question

In chloroplast, Chlorophyll is present in
A) Thylakoid
B) Stroma
C) Outer membrane
D) Inner membrane

Answer 1

Hint: Chloroplast is the organelles present in plants whose main function is to carry out photosynthesis. The chloroplast has a green pigment called chlorophyll which traps sunlight.

Complete Answer:
- Chloroplasts are the important organelles present in all the autosomes.
- The word chloroplast is derived from the Greek word “chloros” meaning green and “plates” which means one that can make. Thus it is known as the food factory of the cell.
- Chloroplast is a dynamic structure which has its own mitochondria. It means it can synthesize its own energy. They are very sensitive to light.

The chloroplast is mainly made up of five components-
Outer Membrane- It is a semi permeable membrane which allows movement or selective particles.
Inner membrane- It is present in the border of stroma. It facilitates the movement of ions to and from chloroplast.
Thylakoid- These are the most important sites which house green pigment called chlorophyll. It is the collection of sacs which stack together to form thylakoids. These sacs are arranged in stacks called grana. Light energy is converted to chemical energy at grana.
Stroma- It is the protein rich fluid present in between the inner membrane and grana.

Thus the correct answer is (a). Chlorophyll is present in the thylakoid.

Note: Chlorophyll is the green colour pigment present in the thylakoids. It carries out light reactions of photosynthesis. Chloroplast has its own mitochondria.