AS Quiz10 2007-2 CH385

AS Quiz10 2007-2 CH385 - CH385 Introduction to Cell Biology...

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CH385 Introduction to Cell Biology Name _________________________ Quiz #10 (30 points) AY 2007-2 MULTIPLE CHOICE: 1. (4 pts) What is the function(s) of a biological membrane? a. It separates the inside from the outside. b. It functions as a semipermeable barrier. c. Proteins are embedded in it. d. all of the above 2. (4 pts) Which of the following can not easily pass through the plasma membrane via passive diffusion? a. glucose b. H 2 O c. O 2 d. benzene 3. (4 pts) Which of the following are function(s) of proteins in the cell membrane? a. transporters for solute molecules b. anchors for the cytoskeleton c. receptors for extracellular molecules d. all of the above 4. (4 pts) Protein pores that span the cell membrane can be made of either α-helixes or β-pleated sheets. Which of the following statements is TRUE about the segments of the protein that lie within the bilayer of the membrane? a. They are composed of amino acids with polar, hydrophilic side chains.
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AS Quiz10 2007-2 CH385 - CH385 Introduction to Cell Biology...

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