4 major parts of a plasma membrane
* proteins
* lipid bilayer * carbohydrates * cholesterol
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The main molecules that form the plasma membrane are phospholipids, cholesterol, glycolipids, proteins, and carbohydrates. These molecules are arranged in a bilayer structure, with the hydrophilic heads facing the external and internal environments and the hydrophobic tails facing each other.
The four major phospholipids found in the plasma membrane of mammalian cells are phosphatidylcholine, phosphatidylethanolamine, phosphatidylserine, and sphingomyelin. Each of these phospholipids contributes to the structure and function of the plasma membrane, helping maintain its integrity and allowing for selective permeability.
1) Nucleus 2) Mitochondria 3) Golgi body 4) Vacuole(s) 5) Endoplasmic reticulum 6) Nucleolus 7) Cytoplasm 8) Plasma membrane 9) Ribosomes
An animal cell has seven parts: 1.Cell Membrane 2.Cytoplasm 3.Mitochondria 4.Nucleus 5.Nuclear Membrane 6.Ribosomes
The plasma membrane contains mainly lipids (phospholipids, cholesterol), proteins (integral proteins, peripheral proteins), and carbohydrates (glycolipids, glycoproteins). These molecules work together to provide structure, regulate transport of substances in and out of the cell, and facilitate cell-cell communication.