Fluidity of membranes is increased by the following constituent except (A) Polyunsaturated fatty acids (B) Saturated fatty acids (C) Integral proteins (D) Cholesterol Last Answer : Answer : A...
According to widely accepted fluid mosaic model cell membranes are semi-fluid, where lipids and integral proteins can diffuse randomly. In recent years, this model has been modified in several ... domains of the membrane. (d) Many proteins remain completely embedded within the lipid bilayer. Last Answer : (b) Proteins can also undergo flip-flop movements in the lipid bilayer....
Which one of the following is wrong statement? (a) Anabaena and Nostoc are capable of fixing nitrogen in free-living state also .(b) Root nodule forming nitrogen fixers live as aerobes ... membranes, certain nucleic acids and all proteins. (d) Nitrosomonas and Nitrobacter are chemo- autotrophs.
83. Which one of the following is wrong statement ? (1) Nitrosomonas and Nitrobacter are chemoautotrophs (2) Anabaena and Nostoc are capable of fixing nitrogen in free-living state also (3 ... living conditions (4) Phosphorus is a constituent of cell membranes, certain nucleic acids and all proteins Last Answer : Phosphorus is a constituent of cell membranes, certain nucleic acids and all proteins...
Which of the following features is predicted by the Nicolson–Singer fluid mosaic model of biological membranes? (A) Membrane lipids do not diffuse laterally (B) Membrane lipid is primarily in a monolayer form (C) Membrane lipids freely flip-flop (D) Membrane proteins may diffuse laterally Last Answer : Answer : D...
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