Question

question 16 of 22
all macromolecules are made mostly of the same six elements. what are those six elements?
a. gold, potassium, tin, sulfur, gold, oxygen
b. water, oxygen, ammonia, hydrogen peroxide, carbon, nitrogen
c. hydrogen, helium, oxygen, gold, silver, aluminum
d. carbon, hydrogen, oxygen, nitrogen, phosphorus, sulfur

Explanation:

Macromolecules (such as carbohydrates, lipids, proteins, and nucleic acids) are mainly composed of carbon (C), hydrogen (H), oxygen (O), nitrogen (N), phosphorus (P), and sulfur (S). Option A has gold (Au) and tin (Sn) which are not common in macromolecules. Option B has water (\(H_2O\)) and ammonia (\(NH_3\)) which are compounds, not elements. Option C has helium (He), gold (Au), silver (Ag), and aluminum (Al) which are not typical elements in macromolecules.

Answer:

D. Carbon, hydrogen, oxygen, nitrogen, phosphorus, sulfur