Question

In chloroplast, chlorophyll is located in:
A. Inner membrane
B. Thylakoid
C. Stroma
D. Outer membrane

Answer 1

Hint: There are various cell organelles present in the plant and animal cell. These are the living parts of the cell. One such important part of the plant cell is the plastid. These plastids are of different types depending on their functions.

Complete answer:
To know the correct answer to the question, we must be well aware of the chloroplast and chlorophyll.
The different types of plastids are:
Chloroplast- These are the plastids in which the green-pigment chlorophyll is present.
Leucoplast - These are the plastids which are used for storage of starch.
Chromoplast - These are the plastids in which the colors are present.

The chloroplasts consist of the pigment which gives the plants its green color. It is the double membrane bound organelle. The outer membrane consists of membrane protein called porin. The inner membrane is impermeable.
The chloroplast consists of a matrix filled with fluid called the stroma. It also consists of thylakoids. The stacks of these thylakoids are known as the grana.
The chlorophyll is present in the thylakoid membrane.

Since, now we know about the structure of the chloroplast, therefore, the correct answer to the question is thylakoid.

Note:
Here it must be noted that the dark reaction takes place in the stroma. While the light reaction takes place in the grana.
The chloroplast is a double-membrane bound organelle. The space between the outer and the inner membrane is known as the periplastidial space.