THE CELL
TRANSPORT INTO AND OUT OF THE CELL
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It is fluid and flexible.
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It is rigid and breaks easily.
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It is only found in eukaryotic cells.
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All of the above are true.
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Detailed explanation-1: -The fatty acids of most natural phospholipids have one or more double bonds, which introduce kinks into the hydrocarbon chains and make them difficult to pack together. The long hydrocarbon chains of the fatty acids therefore move freely in the interior of the membrane, so the membrane itself is soft and flexible.
Detailed explanation-2: -The plasma membrane is strong and flexible because of its phospholipid structure that keeps them together while allowing the membrane to be fluid.
Detailed explanation-3: -The cell membrane is a thin semi-permeable membrane that surrounds the cytoplasm of a cell. It is living in nature and mainly composed of lipids and proteins.
Detailed explanation-4: -The plasma membrane is flexible and is made up of organic molecules called lipids and proteins. The flexibility of cell membrane enables the cell to engulf in food and other material from its external environment. Such process is known as endocytosis. It is observed in Amoeba.