Question

which of the following is an example of a protein? options: glucose, cellulose, starch, enzyme (with an image of a molecular structure)

Explanation:

To determine which is a protein, we analyze each option:

• Glucose: A monosaccharide (simple sugar), not a protein.
• Cellulose: A polysaccharide (carbohydrate), not a protein.
• Starch: A polysaccharide (carbohydrate), not a protein.
• Enzyme: Most enzymes are proteins (some are RNA, but enzymes are a classic example of proteins in biology).

Answer:

Enzyme (the option labeled "Enzyme" in the turquoise box)