THE CELL
STRUCTURE AND FUNCTION OF THE CELL
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Recognition marker
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Transport protein
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Phospholipid
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Cholesterol channel
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Detailed explanation-1: -Glycolipids are membrane carbohydrates linked to lipids. These carbohydrate chains help in cell-to-cell recognition.
Detailed explanation-2: -Complex carbohydrates coat the surfaces of cells and have the potential to carry the information necessary for cell-cell recognition. Sugar-specific receptors (lectins) are also present on cells, and can interact with sugars on apposing cells.
Detailed explanation-3: -Proteins embedded within the phospholipid bilayer carry out the specific functions of the plasma membrane, including selective transport of molecules and cell-cell recognition.
Detailed explanation-4: -Membrane carbohydrates perform two main functions: participate in cell recognition and adhesion, either cell-cell signalling or cell-pathogen interactions, and they have a structural role as physical barrier.
Detailed explanation-5: -Complete answer: Branching side-chain glycolipids and glycoproteins on the outer surface of cell membranes are involved in cell-cell recognition.