Question

1. what do all macromolecules (carbs, proteins, lipids, nucleic acids) have in common? (1 point) ○ phosphorus ○ carbon ○ sulfur ○ nitrogen

Explanation:

Carbohydrates (C, H, O), proteins (C, H, O, N, sometimes S), lipids (C, H, O, sometimes P), nucleic acids (C, H, O, N, P) all contain carbon. Phosphorus is in nucleic acids/lipids (not all), sulfur in some proteins (not all), nitrogen in proteins/nucleic acids (not carbs/lipids always). So carbon is common.

Answer:

B. Carbon