1) water is a polar molecule, yet it easily moves through the nonpolar portions of cell
membranes. which transport process is responsible?
a) facilitated diffusion
b) simple diffusion
c) uniport
d) symport
e) antiport
2) match each leukocyte to its normal percentage in a differential cell count.
a. 50-70%
b. 20-40%
c. 2-8%
d. 1-4%
e. < 1%
eosinophils
3) match each product with the cell or region that secretes or contains it.
a. enzymes
b. hcl
c. hco3-
d. mucus
e. more than one of these
brush border
4) melanocortins includes one or more of the following:
a) acth
b) cortisol
c) growth hormone
d) msh
e) acth and msh
5) the hormone that is the basis for a pregnancy test is
a) lh.
b) progesterone.
c) human chorionic gonadotropin (hcg).
d) human placental lactogen (hpl).
e) relaxin.
6) place the following structures of the respiratory tree in the order in which air passes
through them.
1> secondary bronchi
2> bronchioles
3> primary bronchi
4> alveoli
5> terminal bronchioles
a) 4, 1, 2, 3, 5
b) 1, 3, 5, 2, 4
c) 3, 1, 5, 2, 4
d) 3, 1, 2, 5, 4
e) 1, 3, 2, 5, 4
7) match these terms with their descriptions.
a. gray matter
b. white matter
c. ascending tracts
d. descending tracts
e. propriospinal tracts
swellings containing sensory cell bodies
8) define, compare, and contrast each of the pathologies listed below. are the risk
factors for each the same? explain your answer.
a. coronary artery disease
b. atherosclerosis
c. myocardial infarction
d. hypertension
e. congestive heart failure
9) match the stimulus to the type of receptor that typically responds to it.
a.chemoreceptor
b.mechanoreceptor
stretch
10) when golf is activated, which of the following steps in the olfactory cells contribute
to their depolarization?
a) increases in adenylate cyclase only
b) increases in camp concentrations only
c) increases in the closure of camp gated cation channels only
d) increases in adenylate cyclase activity and camp concentrations
e) increases in adenylate cyclase activity, camp concentrations and closure of camp
gated cation channels
11) during the relative refractory period, an initial threshold-level depolarization is
usually not sufficient to trigger an action potential. why?
a) only some na+ channels have returned to their resting position.
b) only k+ channels are still open, so na+ entry is offset by k+ loss.
c) only a few k+ channels have returned to their resting position.
d) the statement is incorrect; a threshold-level depolarization always triggers an action
potential.
e) some na+ channels have returned to their resting position and k+ channels are still
open, so na+ entry is offset by k+ loss.
12) match the change with the cardiovascular event described.
a. increased
b. decreased
c. unchanged
d. stopped
blood pressure decreases during sleep. how does this affect velocity?
13) the most complex endocrine responses involve the
a) thyroid gland.
b) pancreas.
c) adrenal glands.
d) hypothalamus.
e) thymus.
14) during mild to moderate exercise, arterial ph, po2, and pco2 are
a) nearly normal.
b) nearly half of normal.
c) almost twice as high as normal.
15) it is the middle of winter and you walk over an icy patch and lose your balance. as
you begin to fall, you react by extending your arms to catch yourself. in this instance,
what type of reflex is occurring?
a) stretch reflex
b) tendon reflex
c) flexor reflex
d) crossed extensor reflex
e) reciprocal reflex
16) after coming off a ribosome, several things can happen to the newly synthesized
protein. name three.
17) josie is in her last weeks of pregnancy. during a routine check-up, she asks why she
is suddenly experiencing swollen feet when she wears knee-high stockings (with a tight
elastic band just below the knee). she is confused because an elderly relative wears
support stockings to prevent swollen feet, an apparent contradiction. speculate on a
logical explanation for her swelling feet and the difference between support hose and
knee-high stockings.
18) the term for reduced blood flow to the cardiac muscle is ________.
19) what are the labels for the graph axes?
20) why is there a loss of blood volume when a patient is confined to bed for two or
three days? what symptoms commonly follow this confinement?
21) ________ is a tissue that is modified to transmit electrical signals from one cell to
another.
22) ________ is the enzyme that converts co2 into bicarbonate ions.
23) the three sections of the brain stem are ________, ________, and ________.