CHAPTER 10 MEMBRANE STRUCTURE MOLECULAR BIOLOGY OF THE CELL, SIXTH EDITION BRUCE ALBERTS TEST BANK QUESTIONS WITH ANSWER KEY

CHAPTER 10 MEMBRANE
STRUCTURE MOLECULAR
BIOLOGY OF THE CELL, SIXTH
EDITION BRUCE ALBERTS TEST
BANK QUESTIONS WITH
ANSWER KEY
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, Molecular biology of the cell, sixth edition bruce alberts test bank

Chapter 10 membrane structure

1. What is the typical thickness of a lipid bilayer such as the plasma membrane of our cells?
A. 0.5 nm
B. 5 nm
C. 50 nm
D. 100 nm
E. 500 nm


1. In the following schematic drawing of an abundant plasma membrane phosphoglyceride,
which part is positively charged?


A

B


C




D E




A. A
B. B
C. C
D. D
E. E


1. Which of the following is not correct regarding the molecule whose structural formula is
shown below?

, A. It is an amphiphilic molecule.
B. It is a sterol.
C. It makes the membrane less permeable to small hydrophilic molecules.
D. It is found in membranes of virtually all living cells.
E. It affects the fluidity of the lipid bilayer.


1. Which of the following is normally not found in a eukaryotic membrane?
A. Cholesterol
B. Phosphatidylinositol
C. Sphingomyelin
D. Ganglioside gm1
E. Octylglucoside


1. The motion of lipid molecules in a synthetic bilayer can be studied by various techniques.
Which of the following has been observed in these systems?
A. Phospholipids diffuse rapidly within and between the two leaflets of a bilayer.
B. An average lipid molecule can diffuse the length of about 2 micrometers in a fraction
of a millisecond.
C. The flip-flops are very rare for phospholipids but cholesterol molecules flip-flop more
often.
D. Within a bilayer, lipid molecules rarely rotate about their long axis, but diffuse
laterally at very high rates.
E. All of the above.