Most abundant organic compound on earth is

Options

A. Protein
B. Cellulose
C. Lipids
D. Steroids

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the most abundant organic compound on Earth. Organic compounds are primarily made up of carbon, hydrogen, and oxygen.

2. **Analyzing the Options**: The options given are:
- a) Proteins
- b) Cellulose
- c) Lipids
- d) Steroids

3. **Identifying the Characteristics of Each Option**:
- **Proteins**: These are made up of amino acids and are essential for various biological functions, but they are not the most abundant organic compound.
- **Cellulose**: This is a type of carbohydrate composed of chains of glucose units. It provides structural support in plant cell walls.
- **Lipids**: These are fats and oils that serve as energy storage but are not as abundant as cellulose.
- **Steroids**: These are a class of lipids that have a specific structure but are not abundant compared to cellulose.

4. **Focusing on Cellulose**: Cellulose is a polysaccharide that forms the primary structural component of plant cell walls. It is made up of long chains of glucose molecules and is crucial for providing strength and rigidity to plants.

5. **Conclusion**: Since cellulose is a major component of wood and is found in the cell walls of almost all plants, it is the most abundant organic compound on Earth.

**Final Answer**: The most abundant organic compound on Earth is **cellulose**.

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