Biochemistry - Membrane Structure and Functions

Exercise :: Membrane Structure and Functions - Section 1

  • Membrane Structure and Functions - Section 1
16. 

Lysozymes are found in

A. plant cells
B. animal cells
C. microbial cells
D. all of these

Answer: Option B

Explanation:

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17. 

Biological membranes are like water beds because

A. they are always moving
B. they (normally) do not leak their contents
C. the membrane is thin compared to the enclosed volume
D. all of the above

Answer: Option D

Explanation:

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18. 

The plasma membrane is a selectively permeable barrier due to presence of specific transport

A. proteins
B. amino acids
C. carbohydrates
D. none of these

Answer: Option A

Explanation:

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19. 

Which type of molecule spans the membrane, from its inner to outer surface according to the Fluid mosaic model of cell membranes?

A. Cholesterol
B. Phospholipid
C. Protein
D. Carbohydrate

Answer: Option C

Explanation:

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20. 

Which of the following is correct?

A. Membranes form boundaries around the cell and distinct subcellular components
B. Membranes act as selectively permeable barrier
C. Membranes contain varying amount of lipid and protein and some contain small amount of carbohydrates
D. All of the above

Answer: Option D

Explanation:

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