Help me pleas Cell membranes of all cells are composed of Nucleic Acids
Carbohydrates
Lipids
O Proteins

Okay, I got this from google and my notes but the cells inside of a cell membrane are composed primarily of fatty-acid-based lipids and proteins.

Explanation:

Membrane lipids are principally of two types, phospholipids and sterols (generally cholesterol). These membranes are composed primarily of phospholipids and proteins and are typically described as phospholipid bi-layers. They also contain cholesterol in the phospholipid bilayer.

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