Amino acid is to protein as:

1. Amino acid is to lipid

2. DNA is to RNA

3. Sugar is to fat

4. Simple sugar is to cellulose

Answer

4. Simple sugar is to cellulose

Explanation:

This question uses an analogy to test understanding of biological macromolecules and their building blocks.

Let’s briefly look at the other options:

✅ Therefore, just as amino acids build proteins, simple sugars build cellulose.

4o