Choose the correct pairing of macromolecule type to its function.
A) lipid - manufactures proteins
B) DNA - controls reaction rates
C) carbohydrate - major source of energy
D) protein - comprises majority of membrane structure
E) RNA - determines our inherited characteristics

Question

Quizplus · Accepted Answer

Carbohydrates are a major source of energy for the body.

Answer: D 
 Proteins comprise a majority of membrane structure, as they can form channels and pumps, and are important for cell signaling and recognition.

The other choices are incorrect. Lipids do not manufacture proteins, DNA does not control reaction rates, and RNA does not determine our inherited characteristics (this is the job of DNA).

Choose the Correct Pairing of Macromolecule Type to Its Function