Biology 155 - Quiz 3
1. If you were to analyze the chemical
constituents of an earthworm and an
elephant which would you expect to be most
different?
a.
b.
c.
d.
sugars
phospholipids
amino acids
nucleic acids
2. Which statement about lipids is NOT
correct?
a. some sterols are vitamins
b. triglycerides have three fatty acid chains
as part of their structure
c. phospholipids are completely nonpolar
d. all lipids are soluble in organic solvents
3. Which is NOT a common function for
carbohydrates?
a.
b.
c.
d.
energy storage
cell walls
biological catalysts
skeletal structures
4. Hydrogen bonds are important in all
EXCEPT
a.
b.
c.
d.
double stranded DNA
lipid bilayers
protein secondary structure
hydrophobic interactions
5. If you analyzed the chemical constituents of
a macromolecule derived from a living
organism and found phosphorus, what kind
is it NOT likely to be?
a.
b.
c.
d.
nucleotide
polypeptide
phospholipid
RNA