Which of the following can digest cellulose carbohydrate present in its food?

Options

A. cow
B. lion
C. cat
D. man

Answer

To determine which of the following animals can digest cellulose carbohydrate present in its food — cow, lion, cat, or man — we need to understand the role of cellulose and the digestive systems of these animals.

### Step-by-Step Solution:

1. **Understanding Cellulose**:
- Cellulose is a complex carbohydrate that forms the cell wall of plants. It is not easily digestible by many animals.

2. **Digestive Requirements for Cellulose**:
- To digest cellulose, animals require special enzymes or microorganisms that can break it down. These are often anaerobic microbes, which means they thrive in environments without oxygen.

3. **Ruminants and Their Digestive System**:
- Cows are classified as ruminants. Ruminants have a specialized digestive system that includes an extra stomach (the rumen) where anaerobic microbes are present. These microbes help in breaking down cellulose.

4. **Comparison with Other Animals**:
- Lions and cats are carnivorous and do not have the specialized stomachs or the anaerobic microbes necessary to digest cellulose. Humans also lack these adaptations and cannot digest cellulose effectively.

5. **Conclusion**:
- Among the options provided, only the cow can digest cellulose due to its unique digestive system and the presence of anaerobic microbes.

### Final Answer:
- The cow can digest cellulose carbohydrate present in its food.