Share
Explore BrainMass

Lipid Structures Multiple Choice Questions

See attached file for full problem description.

Which structures contain saturated fatty acids or saturated fatty acid derivatives? Select all answers that apply.
a. A
b. B
c. C
d. D
e. E

Which structures contain unsaturated fatty acids or unsaturated fatty acid derivatives? Select all answers that apply.
a. A
b. B
c. C
d. D
e. E

Which structures are amphipathic? Select all answers that apply.
a. A
b. B
c. C
d. D
e. E

Match each structure with the TYPE of lipid class it represents. Not all answers (i.e. lipid classes) need be used; some structures may share the same class.

Matching pairs:
? Fatty acid
? Sphingophospholipid
? Glycerophospholipid
? Triacylglycerol
? Cholesterol

Would you expect molecule (A) or molecule (B) to have a higher melting point? Why?

Would you expect molecule (A) or molecule (C) to have a higher melting point? Why?

Attachments

Solution Preview

Please see the attached file.

------------------------------------------------

Consider the lipid structures (A through E) below.

Which structures contain saturated fatty acids or saturated fatty acid derivatives? Select all answers that apply.
a. A ("A" is a saturated fatty acid, a fatty acid with only single bonds in the hydrocarbon chain.)
b. B ("B" is an unsaturated fatty acid. Notice the double bonds in the structure.)
c. C ("C" is a saturated fatty acid, a fatty acid with only single bonds in the hydrocarbon chain.)
d. D ("D" contains two saturated fatty acyl chains and one unsaturated fatty acyl chain.)
e. E ("E" chains two unsaturated fatty acyl chains.)

Therefore, all are correct, except B.

Which structures contain unsaturated fatty acids or ...

Solution Summary

The solution answers questions on lipid structures.

$2.19