Which of the following sugars have the same number of carbon as present in glucose ?

Options

A. Fructose
B. Erythrose
C. Ribulose
D. Ribose

Explanation

To determine which of the following sugars have the same number of carbon atoms as glucose, we first need to identify the number of carbon atoms in glucose itself.

### Step-by-Step Solution:

1. **Identify the Carbon Count in Glucose**:
- The molecular formula of glucose is C6H12O6.
- This indicates that glucose has **6 carbon atoms**.

2. **List the Sugars Provided**:
- The sugars mentioned in the question are:
- Fructose
- Erythrose
- Ribulose
- Ribose

3. **Determine the Number of Carbons in Each Sugar**:
- **Fructose**: The molecular formula is also C6H12O6, which means fructose has **6 carbon atoms**.
- **Erythrose**: The molecular formula is C4H8O4, indicating it has **4 carbon atoms**.
- **Ribulose**: The molecular formula is C5H10O5, meaning it has **5 carbon atoms**.
- **Ribose**: The molecular formula is C5H10O5, which also indicates it has **5 carbon atoms**.

4. **Compare the Carbon Counts**:
- Glucose: 6 carbons
- Fructose: 6 carbons
- Erythrose: 4 carbons
- Ribulose: 5 carbons
- Ribose: 5 carbons

5. **Conclusion**:
- The only sugar that has the same number of carbon atoms as glucose is **fructose**.

### Final Answer:
**Fructose** is the sugar that has the same number of carbon atoms as glucose.

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