Question

Each stack of thylakoid is called

• A. chloroplast
• B. stomata
• C. lenticals
• D. granum

Answer 1

The correct option is D

granum

The correct option is D.

Explanation of the correct option:

• Thylakoid is a disc-shaped structure within the stroma of the chloroplast.
• Stroma is the space inside the inner membrane of the chloroplast.
• Thylakoids are placed one above the other to form a stack-like structure called a granum.
• Thylakoid membrane contains the green pigment chlorophyll, which absorbs sunlight during the process of photosynthesis.

Explanations of the incorrect options:

Option A:

• Chloroplast is an intracellular organelle present inside plant cells.

Option B:

• Stomata is a kidney-shaped structure that facilitates the exchange of gases.

Option C:

• Lenticels are porous structures present on the outer surface of the plant for gaseous exchange.

Therefore, each stack of the thylakoid is called a granum.