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1) if the edv is 140 ml, which other values are most likely to occur in a healthy, normal
person?
a) the esv could be 70 ml and the sv could be 90 ml.
b) the esv could be 90 ml and the sv could be 50 ml.
c) the esv could be 50 ml and the sv could be 90 ml.
d) the cardiac output could be 90 ml.
e) diastolic pressure would be equal to edv.
2) in a condition known as pleurisy, there is excess fluid in the pleural space. how
would you expect this to affect the process of pulmonary ventilation?
a) ventilation would require less energy.
b) breathing would be labored and difficult.
c) it would be easier to expand the lungs on inspiration.
d) more air would be forced out during expiration.
e) tidal volume would increase.
3) you are doing an experiment to determine if caffeine consumption affects reaction
time.
a.which is the dependent variable?
b.which is the independent variable?
c.briefly describe some ways you might manipulate the independent variable.
d.name three stimuli you could use, and how you might measure reaction time for each.
e.write an appropriate hypothesis for this study.
f.you compute the following average values from your experiment. what would be a
logical conclusion for these data?
average caffeine consumer's reaction time: 400 ms
average noncaffeine consumer's reaction time: 650 ms
g.sketch a simple graph to convey these results to your classmates. what kind of graph
did you choose? why? which variable did you plot on the x-axis? which one did you
plot on the y-axis? why?
h.do the results of this experiment support the hypothesis you chose?
4) match the transport process to its description.
a. active transport
b. passive transport
tends to create an equilibrium state
5) match the hormone with the correct statement.
a. gastrin
b. cholecystokinin
c. secretin
d. motilin
e. gastric inhibitory peptide
stimulates insulin release
6) 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
pancreatic cells
7) if the enzyme rna polymerase was completely inhibited within a cell, it could not
a) form proteins.
b) form complementary sequences of dna.
c) link pieces of dna together.
d) form spindle fibers.
e) form a new nuclear membrane during cell division.
8) each of the following is an example of homeostasis except one. identify the
exception.
a) increased pressure in the aorta triggers mechanisms to lower blood pressure.
b) a rise in blood calcium levels triggers the release of a hormone that lowers blood
calcium levels.
c) a rise in estrogen during the menstrual cycle increases the number of progesterone
receptors in the uterus.
d) increased blood sugar stimulates the release of a hormone from the pancreas that
stimulates the liver to store blood sugar.
e) a decrease in body temperature triggers a neural response that initiates physiological
changes to increase body temperature.
9) stem cells that will form b lymphocytes are found in the
a) bone marrow.
b) liver.
c) spleen.
d) thymus.
e) kidneys.
10) when you eat a large meal and your body absorbs a lot of glucose and that makes its
way to the interstitial fluid before going into the cell. 100% of the glucose should be
absorbed into the cell from the interstitial fluid. why does nearly all of the glucose enter
the cell, rather than only half of it?
a) it is moved by active transport.
b) it is modified by the cell, so there is still more glucose on the outside of the cell than
inside it.
c) insulin forces glucose into the cell against a concentration gradient.
d) the cells make atp so fast, they use up all the glucose as soon as it enters the cell.
11) increasing ________ will decrease the amount of mrna transcript within a cell for a
constitutively active gene.
a) ribonuclease activity only
b) rna polymerase activity only
c) sirna concentration only
d) ribonuclease activity and sirna concentration only
e) ribonuclease activity, rna polymerase activity and sirna concentration
12) myocardial cells can generate action potentials spontaneously because they have
a) unstable ion channels.
b) permanently open channels for na+ and k+.
c) a net influx of na+.
d) l-type ca2+ channels.
e) prolonged ca2+ influx.
13) compare and contrast the epsp, ipsp, and action potential as to ions involved,
all-or-none law application, specific cellular locations, and specific cell types involved.
14) in males, which cells are the primary targets for fsh? what effect does the hormone
have on these cells?
15) describe the problems that result in low arterial oxygen content.
16) digestion is essentially completed in the ________.
17) a lab technician has inadvertently substituted lithium for sodium in a solution of
saline for use by students in neurophysiology labs. if a frog nerve was bathed in this
solution, what would happen upon stimulation of the nerve?
18) draw and label an action potential, in the form of a graph.
19) sympathetic stimulation to the pacemaker cells ________ heart rate by ________
ion flow through ________ and ________ channels.
20) what two effects does sympathetic stimulation have on the heart during exercise?
21) ________ refers to the mass movement of fluid between the blood and the
interstitial fluid as the result of ________ or ________ pressure gradients. if the
direction of bulk flow is into the capillary, the fluid movement is called ________. if
the direction of flow is out of the capillary, the fluid movement is known as ________.
