Which of the following carbohydrate can be digested by a cow but not by a man?

Options

A. glucose
B. cellulose
C. starch
D. canesugar

Answer

### Step-by-Step Solution:

1. **Identify the Carbohydrates**: The question asks about carbohydrates that can be digested by cows but not by humans. The main carbohydrates to consider are glucose, starch, and cellulose.

2. **Understand Ruminant Digestion**: Cows are classified as ruminants, which means they have a specialized stomach structure that allows them to digest certain types of carbohydrates that humans cannot.

3. **Focus on Cellulose**: Among the carbohydrates mentioned, cellulose is the one that cows can digest due to the presence of specific microbes in their stomach. These microbes produce enzymes that break down cellulose.

4. **Contrast with Human Digestion**: Humans lack the necessary enzymes and the specialized stomach environment (anaerobic) to digest cellulose. Instead, humans can digest carbohydrates like glucose and starch.

5. **Conclusion**: Therefore, the carbohydrate that can be digested by a cow but not by a man is **cellulose**.