1. An -OH group is a(an) group.
a. carboxyl
b. hydroxyl
c. amino
d. methyl
e. ketone
2. The formation of large molecules from a reaction that creates
bonds between small repeating units and gives off water is a(n)
reaction.
a. oxidation
b. reduction
c. condensation
d. hydrolysis
e. decarboxylation
3. Monosaccharides are characterized by all EXCEPT which of the following?
a. a carbon ring or chain
b. a ketone or an aldehyde group
c. a molecule with usually 5-7 carbon atoms
d. possession of one or more hydroxyl groups
e. the presence of fatty acids
4. Long chain fatty acids attached to long chain alcohols is characteristic
of?
a. triglycerides
b. phospholipids
c. sterols
d. waxes
e. glucose
5. What type of bond exists between two amino acids in a protein?
a. peptide
b. ionic
c. hydrogen
d. amino
e. phospholipidate
6. Nucleotides contain what kind of sugars?
a. three-carbon
b. four-carbon
c. five-carbon
d. six-carbon
7. A hypothetical ìmicro-bulletî shot through the phospholipid
bilayer would pass the components in which order?
a. tail>>>tail>>>head>>>head
b. head>>>tail>>>tail>>>head
c. tail>>>head>>>tail>>>>head
d. tail>>>head>>>head>>>tail
e. none of the above
8. Which statement is NOT correct?
a. Membranes are embedded with proteins that may or may not extend
through the both layers of the cell membrane
b. Hydrophilic substances have an easier time passing through the membranes
than do hydrophobic substances
c. Some membranes have proteins with channels or pores that allow for
the passage of hydrophilic substances
d. The current concept of a membrane can be best summarized by the
fluid mosaic model
e. The lipid bilayer serves as a hydrophobic barrier between two fluid
regions
9. Oxygen, carbon dioxide, and other small molecules cross the plasma
membrane through the process(es) of?
a. osmosis
b. diffusion
c. exo/endocytosis
d. active transport
e. facilitated diffusion
10. A red blood cell will swell and burst when placed in which of
the following kinds of solution?
a. hypertonic
b. isotonic
c. hypotonic
d. both a and c
e. both b and c
11. Movement of a molecule against a concentration gradient is?
a. simple diffusion
b. facilitated diffusion
c. osmosis
d. active transport
e. none of the above
Make sure to answer each question before checking the answers