Question

The most abundant organic molecule on the surface of the Earth is:

• A. Cellulose
• B. Chitin
• C. DNA
• D. Haemoglobin

Hint:

Cellulose is the main component of plants and forms the largest organic reservoir on Earth’s surface.

Answer 1

The Correct Option is A

Step 1: Understanding organic molecules
Organic molecules contain carbon and are essential components of living organisms.
Step 2: Cellulose
Cellulose is a complex carbohydrate found in plant cell walls and is the most abundant organic molecule on Earth’s surface, forming the structure of plants and trees.
Step 3: Others
- Chitin is found in fungi and exoskeletons of insects.
- DNA carries genetic information but is less abundant.
- Haemoglobin is a protein in blood cells.
Thus, Option (A) Cellulose is correct.