A biology student creates a table that shows the function of the four major macromolecules.

Question

Macromolecule Function
lipids transport oxygen in the blood
proteins help with muscle contractions
nucleic acids store and transmit genetic information
carbohydrates provide usable chemical energy for cells

For which macromolecule does the student list an incorrect function?
A.

the lipids, because they are responsible for long-term energy storage

B.

the proteins, because they are responsible for helping plants retain water

C.

the carbohydrates, because they are responsible for the structure of the cell membrane

D.

the nucleic acids, because they are responsible for providing support for the immune system

Answer 1

The student lists an incorrect function for:

A. the lipids, because they are responsible for long-term energy storage.

Lipids primarily serve a variety of functions, including long-term energy storage, insulation, and forming cell membranes. In the context of the function listed, "transport oxygen in the blood" is actually a function of proteins (specifically hemoglobin), not lipids. Therefore, option A is correct in identifying that lipids do not serve the function of transporting oxygen, while the other options refer to incorrect associations but do not specifically mention functions listed in the table.

The answer should be A, as that directly addresses the incorrect function associated with lipids.