Question

1. which of the following statements best describes the importance of carbon in the cell?

○ carbon is used by the cell to balance salt concentrations inside the cell
○ carbon maintains the proper temperature inside a cell.
○ carbon is waste inside the cell and must be removed from cells.
○ carbon provides structure and affects the function of a cell

Explanation:

Carbon is a key component of all biological macromolecules (like proteins, lipids, carbohydrates, nucleic acids) that form cell structures and enable cellular functions. The other options describe roles of water (balancing salt concentrations, temperature regulation) or incorrectly frame carbon as waste.

Answer:

D. Carbon provides structure and affects the function of a cell.