Name:
HW#13: Lipids
1.
Lipids are biological molecules that are:
a.
b.
c.
d.
2.
Fats and oils are NOT referred to as:
a.
b.
c.
d.
3.
passive
facilitated
active
What is the most abundant steroid in the human body?
a.
b.
c.
d.
5.
triacylglycerols
triglycerides
glycerol triesters
fatty acid salts
Molecules can be passed through protein channels from one side of a
membrane to the other by what transport process?
a.
b.
c.
4.
soluble in water, but insoluble in nonpolar solvents
insoluble in both water and nonpolar solvents
soluble in nonpolar solvents, but insoluble in water
soluble in both water and nonpolar solvents
estrogen
testosterone
progesterone
cholesterol
Which of the following statements concerning lipid bilayers is
correct?
a.
b.
c.
d.
both the exterior and interior surfaces contain groups that are
nonpolar
the interior is polar
the two layers of molecules are in a “tail-to-tail” arrangement
the two layers of molecules are in a “head-to-tail” arrangement