Find out the correct one.

Options

A. Cellulose is the most abundant carbohydrate.
B. 50% of all photosynthetic products constitute cellulose
C. Rubisco is the most abundant protein on earth
D. All

Answer

To solve the question, we need to evaluate the statements provided and determine which one is correct.

### Step-by-Step Solution:

1. **Identify the Statements**: We have two main statements to evaluate:
- Statement 1: "Cellulose is the most abundant carbohydrate."
- Statement 2: "Rubisco is the most abundant protein on earth."

2. **Evaluate Statement 1**:
- Cellulose is indeed a carbohydrate and is known to be the most abundant organic polymer on Earth. It is a major component of plant cell walls and is produced during photosynthesis.
- Therefore, Statement 1 is **correct**.

3. **Evaluate Statement 2**:
- Rubisco, or ribulose-1,5-bisphosphate carboxylase/oxygenase, is an enzyme involved in the process of carbon fixation in photosynthesis.
- It is considered one of the most abundant proteins on Earth due to its role in plants and algae, as it catalyzes the first major step of carbon fixation.
- Therefore, Statement 2 is also **correct**.

4. **Conclusion**: Since both statements are correct, we can conclude that the question is asking for the identification of correct statements, and both options provided are indeed correct.

### Final Answer:
Both statements are correct:
1. Cellulose is the most abundant carbohydrate.
2. Rubisco is the most abundant protein on earth.

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