A. A glycerol molecule is polar because of its three hydroxyl groups.
A fatty acid has along, nonpolar hydrocarbon chain, but its end is polar
or negatively charged because of its carboxyl group. Explain how the triglyceride
that is formed can be neutral and nonpolar.
B. The enzyme tyrosinase produces dark coat pigment in northern seals and
Arctic foxes. However it only functions in cold temperatures. Baby seals
are born in the winter and camouflaged white. Arctic foxes are dark in the
summer and white in the winter. Explain.
c. Label a diagram of the fern life cycle to illustrate alternation of generation.
Be certain that you label what is N and 2N.
D. Design a set of genetic crosses that would distinguish between typical
Mendelian inheritance and blending inheritance (incomplete dominance).
E. List 4 ways recombination can occur in vertebrates.
F. A woman may be color-blind in one eye but have normal color vision in
the other eye. Account for this phenomenon.
G. Discuss the two primary roles played by the prokaryotes.
H. Summarize the problems plants had to circumvent in becoming adapted to
terrestrial environments.
I. What are the advantages of the flattened body form to platyhelminthes?
J. Distinguish between protostome and deuterostome coelomates based on embryonic
cleavage pattern, blastopore, development, and coelom formation.
K. Identify and indicate the effects of four factors that influence the
rate of water loss by transpiration. Which factor is most important?
L. Summarize the influence on intestinal activity of the parasympathetic
and sympathetic divisions of the autonomoic nervous system.
M. Name two features of the blood that influence the release of ADH and
indicate the effect of each factor.
N. Identify the hormonal stimulus for each event in the menstrual cycle:
ovulation, follicle development, development of the endometrium, onset of
the menstrual cycle.