Question

multiple choice 1 point what structure is the arrow pointing to? proteins nucleic acids lipids carbohydrates clear my selection

Explanation:

The structure shown is part of a cell - membrane. The indicated circular - headed structure with a tail is a phospholipid, which is a type of lipid. Phospholipids are a major component of cell membranes, forming a bilayer. They have a hydrophilic head and a hydrophobic tail.

Answer:

C. lipids