The biochemical function for the cholesterol present in cell membranes is a. Cell recognition b. Regulate membrane rigidity c. Impart polarity to the interior membrane d. Prevent tight packing of fatty acid chains 9. Passive transport mechanism requires both the aid of proteins and the expenditure of cellular energy. While Facilitated and Active mechanism both needs protein in order to transport drugs or ions across a membrane channel. Water transport a. Both statements are INCORRECT b. Neither is CORRECT c. Only the 1st statement is INCORRECT d. Only the 2nd statement is CORRECT 9. Which of the following membrane transport mechanism requires both the aid of proteins and the expenditure of cellular energy? a. Water transport
Kindly answer 8, 9, 9 and 10
8. The biochemical function for the cholesterol present in cell membranes is
a. Cell recognition
b. Regulate membrane rigidity
c. Impart polarity to the interior membrane
d. Prevent tight packing of fatty acid chains
9. Passive transport mechanism requires both the aid of proteins and the expenditure of cellular energy. While Facilitated and Active mechanism both needs protein in order to transport drugs or ions across a membrane channel. Water transport
a. Both statements are INCORRECT
b. Neither is CORRECT
c. Only the 1st statement is INCORRECT
d. Only the 2nd statement is CORRECT
9. Which of the following membrane transport mechanism requires both the aid of proteins
and the expenditure of cellular energy?
a. Water transport
b. Active transport
c. Passive transport
d. Facilitated transport
10. Which of the following types of membrane lipids has steroid structure?
a. Cholesterol
b. Globosides
c. Triacylglycerol
d. Sphingoglycolipids
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