Multiple Choice
Which fatty acid chain would you expect to be least soluble in water?
a) 16-Carbon fatty acid.
b) 4-Carbon fatty acid.
c) 22-Carbon fatty acid.
d) 12-Carbon fatty acid.
10. Lipids
Fatty Acids
Struggling with Biochemistry?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Unsaturated fatty acids:
a) Usually contain a double bond with cis stereochemistry.
b) Are found in both plants and animals.
c) Sometimes contain multiple double bonds.
d) Have lower melting points than the analogous saturated fatty acids.
e) All of the above are correct.
A
Usually contain a double bond with cis stereochemistry.
B
Are found in both plants and animals.
C
Sometimes contain multiple double bonds.
D
Have lower melting points than the analogous saturated fatty acids.
E
All of the above are correct.
Verified step by step guidance1
Understand the structure of unsaturated fatty acids: These are fatty acids that contain one or more double bonds between carbon atoms. The presence of these double bonds affects their physical and chemical properties.
Examine the stereochemistry of double bonds: Unsaturated fatty acids often have double bonds with cis stereochemistry, meaning the hydrogen atoms are on the same side of the double bond, causing a bend in the molecule.
Identify the sources of unsaturated fatty acids: They are found in both plants and animals, contributing to the diversity of lipids in nature.
Consider the possibility of multiple double bonds: Some unsaturated fatty acids, known as polyunsaturated fatty acids, contain more than one double bond, which further influences their properties.
Compare melting points: Unsaturated fatty acids generally have lower melting points than saturated fatty acids due to the kinks introduced by cis double bonds, which prevent tight packing of the molecules.
Related Videos
Related Practice
