Phospholipids are the main constituents of

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Phospholipids are the main constituents of

Phospholipids are amphipathic molecules, with a hydrophilic phosphate-containing head and hydrophobic fatty acid tails. In water, they spontaneously organize into a bilayer, placing the heads on the exterior and interior surfaces and the tails hidden in the middle. This bilayer forms the fundamental structure of the cell membrane, creating a semi-permeable barrier that regulates what enters and leaves the cell and helps organize membrane proteins. DNA is made of nucleotides, not phospholipids. Bone tissue is rich in minerals (like calcium phosphate) and collagen, not primarily phospholipids. Proteins are polymers of amino acids. Therefore, the main constituents described are cell membranes.

Phospholipids are amphipathic molecules, with a hydrophilic phosphate-containing head and hydrophobic fatty acid tails. In water, they spontaneously organize into a bilayer, placing the heads on the exterior and interior surfaces and the tails hidden in the middle. This bilayer forms the fundamental structure of the cell membrane, creating a semi-permeable barrier that regulates what enters and leaves the cell and helps organize membrane proteins.

DNA is made of nucleotides, not phospholipids. Bone tissue is rich in minerals (like calcium phosphate) and collagen, not primarily phospholipids. Proteins are polymers of amino acids. Therefore, the main constituents described are cell membranes.

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