Which of the following is a characteristic feature of a carrier protein in a

Which of the following is a characteristic feature of

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13)Which of the following is a characteristic feature of a carrier protein in a plasma membrane?13) A)It requires the expenditure of cellular energy to function.B)It has few, if any, hydrophobic amino acids.C)It works against diffusion.D)It exhibits a specificity for a particular type of molecule.E)It is a peripheral membrane protein. 14)What kinds of molecules pass through a cell membrane most easily?14) 15)Which of the following would likely move through the lipid bilayer of a plasma membrane mostrapidly? 15) 16)Which of the following statements iscorrectabout diffusion?16) 17)Water passes quickly through cell membranes because17) A)water movement is tied to ATP hydrolysis.B)it is a small, polar, charged molecule.C)it moves through hydrophobic channels.D)it moves through aquaporins in the membrane.E)the bilayer is hydrophilic.
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Use the diagram of the U - tube in Figure 7.2 to answer the questions that follow. The solutions in the two arms of this U - tube are separated by a membrane that is permeable to water and glucose b sucrose. Side A is half filled with a solution of 2 M sucrose and 1 M glucose. Side B is half filled with 1 M sucrose an glucose. Initially, the liquid levels on both sides are equal. Figure 7.2 18)Initially, in terms of tonicity, the solution in side A with respect to that in side B is18) 19)After the system reaches equilibrium, what changes are observed?19) 20)A patient has had a serious accident and lost a lot of blood. In an attempt to replenish body fluids,distilled water, equal to the volume of blood lost, is transferred directly into one of his veins. Whatwill be the most probable result of this transfusion? 20)
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  • Fall '16
  • idk
  • Membrane protein

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