33. Which statement describes membrane carbohydrates in the cell membrane? ? they are part of the intracellular matrix ? they serve as active transport pumps ? they stabilize the membrane ? they are found facing the ECF
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Step 1: Membrane carbohydrates are found on the outer surface of the cell membrane, facing the extracellular fluid (ECF). Show more…
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A primary function of polysaccharides attached to glycoproteins and glycolipids of animal cell membranes is to: a) facilitate diffusion or active transport of molecules into the cell. b) mediate cell-to-cell recognition. c) maintain membrane fluidity at low temperatures. d) maintain the integrity of a fluid mosaic membrane.
Rupsa S.
According to the fluid mosaic model of the plasma cell membrane, what is the primary function of carbohydrates attached to the exterior of cell membranes? a. Carbohydrates are in contact with the aqueous fluid both inside and outside the cell. b. Carbohydrates are present only on the interior surface of a membrane. C. Carbohydrates are present only on the exterior surface of a membrane. d. Carbohydrates span only the interior of a membrane.
66. The extracellular matrix, the surfaces of animal/human cells, and the associated polysaccharides have several properties. Which of the following is NOT applicable? a. Molecules on one cell recognize and respond to molecules on another adjacent cell. b. Molecules on a cell recognize and respond to molecules in the extracellular matrix. c. The extracellular matrix is not the simple outer layer of the cell membrane. d. Many of the interactions of the cell surface and extracellular matrix proteins involve sugar-attached glycoproteins on the cell surface and proteoglycans in the extracellular matrix. e. In some glycoproteins, the carbohydrates attached are "prosthetic".
Sukhwinder N.
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