Course

Cell Biology

Study Pack

Set 11 Membrane Structure

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Question 1

(Multiple Choice)

Free
Which of the following functions of the plasma membrane is possible without membrane proteins?

A)intercellular communication
B)selective permeability
C)cellular movement
D)import/export of molecules

Answer

Question 2

(Multiple Choice)

Free
Membrane synthesis in the cell requires the regulation of growth for both halves of the bilayer and the selective retention of certain types of lipids on one side or the other.Which group of enzymes accomplishes both of these tasks?

A)flippases
B)phospholipases
C)convertases
D)glycosylases

Answer

Question 3

(Multiple Choice)

Free
Some lipases are able to cleave the covalent bonds between the glycerol backbone and the attached fatty acid.What final products do you expect to accumulate through the action of the enzyme monoacylglycerol lipase?

A)phosphoglycerol and free fatty acid
B)sterol and glycerol
C)free phosphate and glycerol
D)glycerol and free fatty acid

Answer