Question

1. match each description with the correct macromolecule. the macromolecules may be used twice. (4 points) glucose and starch are examples a. lipids. speed up or slow down reactions (enzymes). b. nucleic acids. insulates and protects c. carbohydrates. contain phosphorous. d. proteins.

Explanation:

1. Glucose (monosaccharide) and starch (polysaccharide) are carbohydrates. So "Glucose and starch are examples" matches c. Carbohydrates.
2. Enzymes are proteins that act as catalysts. So "Speed up or slow down reactions (enzymes)" matches d. Proteins.
3. Lipids (like fats) insulate and protect. So "Insulates and protects" matches a. Lipids.
4. Nucleic acids (DNA/RNA) contain phosphorus. So "Contain phosphorous" matches b. Nucleic Acids.

Answer:

• "Glucose and starch are examples": c. Carbohydrates
• "Speed up or slow down reactions (enzymes)": d. Proteins
• "Insulates and protects": a. Lipids
• "Contain phosphorous": b. Nucleic Acids