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1) the two divisions of the efferent side of the peripheral nervous system are
a) somatic motor neurons and voluntary neurons.
b) somatic motor neurons and autonomic neurons.
c) the sympathetic and parasympathetic divisions.
d) voluntary nervous system and somatic motor neurons.
2) the means by which a cell transports large molecules out of the cell is called
a) phagocytosis.
b) endocytosis.
c) exocytosis.
d) diffusion.
e) active transport.
3) the substance in muscle fiber cytoplasm that directly powers muscle contraction is
a) glucose.
b) fatty acids.
c) atp.
d) phosphocreatine.
4) the surge in lh that occurs during the middle of the ovarian cycle triggers
a) follicle maturation.
b) menstruation.
c) ovulation.
d) menopause.
e) atresia.
5) the feeding and satiety centers are located in the
a) medulla oblongata.
b) pons.
c) hypothalamus.
d) cerebrum.
e) cerebellum.
6) every substance that enters or leaves the internal environment of the body must cross
an epithelium.
a) true
b) false
7) during the luteal phase of the ovarian cycle, progesterone is ________ estrogen.
a) greater than
b) less than
c) equal to
8) match the condition with the description.
a. acromegaly
b. adrenogenital syndrome
c. cretinism
d. dwarfism
e. exophthalmus
mental retardation associated with infantile hypothyroidism
9) the enzyme ________ and ________ ions are required for the synthesis of mrna.
10) the first line of cellular defense against pathogens are the
a) t lymphocytes.
b) b lymphocytes.
c) nk cells.
d) phagocytes.
e) plasma cells.
11) match the type of signal to its description (answers may be used more than once).
a. graded potential
b. action potential
c. both
result(s) from influx of sodium
12) lymphocytes and plasma cells
a) mediate the acquired immune response.
b) are found primarily in lymphoid tissue.
c) all function and behave the same way.
d) mediate the acquired immune response and are found primarily in lymphoid tissue.
e) mediate the acquired immune response, are found primarily in lymphoid tissue, and
all function and behave the same way.
13) a child is rushed to the hospital after taking one of his grandmother's blood pressure
medications. he has a low blood pressure and is also having trouble breathing, with
audible wheezing upon exhalation. which class of drugs did the child most likely take?
a) ace inhibitor
b) beta blocker
c) calcium channel blocker
d) diuretic
14) which of the following is not a membrane lipid?
a) sphingolipids
b) cholesterol
c) phospholipids
d) all are membrane lipids.
15) the largest metabolic reserves for the average adult are stored as
a) carbohydrates.
b) proteins.
c) amino acids.
d) triglycerides.
e) fatty acids.
16) the brain region that is identifiable by its folds and grooves is the
a) cerebellum only.
b) cerebrum only.
c) medulla oblongata only.
d) cerebellum and cerebrum.
e) cerebrum and medulla oblongata.
17) in response to a rapid increase of organic acid in the body, you would expect to
observe
a) increased alveolar ventilation only.
b) decreased blood pressure only.
c) decreased heart rate only.
d) decreased blood ph only.
e) increased alveolar ventilation and decreased blood ph.
18) pressure and volume of gas in a container are related to temperature and number of
gas molecules. this is known as ________ law.
a) the ideal gas
b) boyle's
c) dalton's
d) henry's
e) ohm's
19) the weak interactions between atoms that keep atoms near each other but don't
tightly bind them together are called
a) hydrogen bonds.
b) van der waals forces.
c) ionic bonds.
d) hydrogen bonds and van der waals forces.
e) van der waals forces and ionic bonds.
20) if 100 ml of water contains 5 grams of nacl, m.w. 58.5 daltons, what is the molarity
of the solution in moles/l?
a) 0.05
b) 0.85
c) 2.92
d) 0.085
e) 0.25
21) list and describe the three filtration barriers that substances leaving the plasma must
pass through before entering the tubule lumen.
22) define the law of mass action.
23) the enzyme that digests starch into disaccharides and trisaccharides is ________.
24) the pressure created in the ventricles is called the ________ pressure because
________.
25) when the inspiratory muscles relax, the rib cage returns to its original position as a
result of ________.
26) for the following strand of dna, use the table below to provide: bases for the
complementary mrna and bases for the corresponding trna molecules and the associated
amino acids. what do you notice about the relationship between the dna and the
anticodons? what do you notice about the genetic code for proline in the peptide? how
would the loss of the first g or switching that g to a t affect the structure and function of
this protein?
dna: ggc cta caa gcc gga aca gtt acc gcg taa cga
mrna:
trna:
