Course

Introductory Biology

Study Pack

Set 5 Biological Membranes

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Question 1

(Multiple Choice)

Free
Which statement about lipid bilayers is false ?

A) They are inflexible.
B) They are self-sealing.
C) They resist forming free ends.
D) They can fuse with other bilayers.
E) They spontaneously form closed vesicles.

Answer

Question 2

(Multiple Choice)

Free
In a lipid bilayer, __________ fatty acid tails face each other within the bilayer and form a region that excludes water.

A) hypertonic
B) hyperosmotic
C) hypotonic
D) hydrophilic
E) hydrophobic

Answer

Question 3

(Multiple Choice)

Free
A molecule that binds specifically to a receptor is called a ______________.

A) ligand
B) clathrin
C) endosome
D) macrophage
E) low-density lipoprotein

Answer