The ribose sugar belongs to following group
(a) Tetroses
(b) Pentoses
(c) Hexoses
(d) Heptulose

Options

A. Tetroses
B. Pentoses
C. Hexoses
D. Heptulose

Answer

To determine the group to which ribose sugar belongs, we can follow these steps:

### Step 1: Understand the Structure of Ribose Sugar
Ribose sugar is a type of sugar that is crucial in biological molecules, particularly in RNA (Ribonucleic Acid).

### Step 2: Identify the Number of Carbon Atoms
Ribose sugar has a specific structure that includes five carbon atoms. This can be visually confirmed by examining its molecular structure.

### Step 3: Classify the Sugar Based on the Number of Carbons
Sugars can be classified based on the number of carbon atoms they contain:
- Tetroses have 4 carbon atoms.
- Pentoses have 5 carbon atoms.
- Hexoses have 6 carbon atoms.
- Heptulose has 7 carbon atoms.

### Step 4: Determine the Correct Group for Ribose
Since ribose has 5 carbon atoms, it falls under the category of pentoses.

### Conclusion
Thus, the correct answer is (b) Pentoses.

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