Course

Biochemistry

Study Pack

Set 2 Water The Medium Of Life

Back to Sets
Question 1

(Multiple Choice)

Free
Amphiphilic (amphipathic) molecules include:

A) sugars.
B) acidic amino acids.
C) inorganic salts.
D) water.
E) salts of fatty acids.

Answer

Question 2

(Multiple Choice)

Free
In micelles:

A) polar ends form hydrophobic interactions with water.
B) nonpolar ends form hydrophilic interactions with water.
C) hydrocarbon tails form hydrophobic interactions with water.
D) polar ends are hydrophobic and nonpolar ends are hydrophilic.
E) hydrocarbon tails are excluded from the water into hydrophobic domains.

Answer

Question 3

(Multiple Choice)

Free
To ____ the osmotic pressure created by the contents of their cytosol, cells tend to store substances such as amino acids and sugars in ____ form.

A) increase, monomeric
B) minimize, polymeric
C) minimize, monomeric
D) maximize, polymeric
E) increase, polymeric

Answer