Which two molecules are the main structures in a cell membrane Sugars and ions
Carbohydrates and proteins
Phospholipids and DNA
Phospholipids and proteins

Phospholipids and proteins

Explanation:

The cell membrane is primarily composed of a phospholipid bilayer. The phospholipid molecules are made of a hydrophilic phosphate head and a hydrophobic fatty acid tail. These form a bilayer arrangement and act as a semi-permeable membrane.

There are also many proteins embedded in the phospholipid bilayer. These proteins act as channels, shuttles, transporters, enzymes, and signalling molecules to control the access of materials that cannot cross the bilayer and to respond to the extracellular environment.

ionic bonds are two oppositely charged ions that attract. a sodium ion has a 1 positive charge; a chloride ion has a 1 negative charge. sodium and chloride have oppostive charged ions that attract which forms an ionic bond. a chemical bond formed when two atoms share electrons is called