SCIENCE
CELL BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Cell membranes consist of two phospholipid layers called a lipid monolayer.
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Cell membranes consist of three phospholipid layers called a lipid trilayer.
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Cell membranes consist of two phospholipid layers called a lipid bilayer.
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Cell membranes consist of hydrophobic heads and tails called a lipid hydrolayer.
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Detailed explanation-1: -Biological membranes consist of a continuous double layer of lipid molecules in which membrane proteins are embedded. This lipid bilayer is fluid, with individual lipid molecules able to diffuse rapidly within their own monolayer. The membrane lipid molecules are amphipathic. The most numerous are the phospholipids.
Detailed explanation-2: -Phospholipid Bilayer The plasma membrane is composed mainly of phospholipids, which consist of fatty acids and alcohol. The phospholipids in the plasma membrane are arranged in two layers, called a phospholipid bilayer, with a hydrophobic, or water-hating, interior and a hydrophilic, or water-loving, exterior.
Detailed explanation-3: -A cell membrane is a bilayer because it is made up of 2 layers of lipids. The heads of the lipids are faced towards the opposites sides (the inside and outside of a cell) while the tail (the 2 fatty acids) are inside the layer facing each other.
Detailed explanation-4: -The lipid bilayer (or phospholipid bilayer) is a thin polar membrane made of two layers of lipid molecules. These membranes are flat sheets that form a continuous barrier around all cells.
Detailed explanation-5: -Phospholipids are made up of two layers, the outer and inner layers. The inside layer is made of hydrophobic fatty acid tails, while the outer layer is made up of hydrophilic polar heads that are pointed toward the water.