1) a vasectomy prevents which of the following?
a) ejaculation
b) spermatogenesis
c) erection
d) formed sperm from entering ejaculate
e) ejaculation and spermatogenesis
2) how many grams of glucose, m.w. 180 daltons, is necessary to make 1 liter of a 1.0
molar solution?
a) 180
b) 360
c) 90
d) 6.02 1023
e) 1.0
3) gustatory cells that respond to sour via release of serotonin are called
a) type i taste cells.
b) type ii taste cells.
c) type iii taste cells.
d) basal taste cells.
4) which of the following would be an adequate stimulus for a mechanoreceptor?
a) oxygen
b) cell stretch
c) photon of light
d) cold temperature
e) ph
5) do the factors affecting affinity of hemoglobin for oxygen have the same impact on
loading and unloading in lungs and tissues? explain your answer, and indicate if this
presents a conflict in remedying hypoxia. assuming a medical team has treatments
available for changing all the factors affecting hemoglobin’s oxygen affinity, how
should they manipulate ph, temperature, pco2, and 2,3-dpg content in a hypoxic
patient?
6) match the level of organization with its definition below.
a. a collection of similar cells that carry out similar functions
b. the smallest living unit
c. a collection of different tissues that carry out related functions
d. groups of organs functioning in a coordinated manner
1> cell
2> tissue
3> organs
4> organ systems
7) with the exception of olfaction, all sensory pathways first travel to the ________,
which acts as a relay and processing station.
a) cerebrum
b) thalamus
c) cerebellum
d) hypothalamus
e) medulla oblongata
8) drugs known as calcium channel blockers can be used to
a) decrease the force of cardiac contraction.
b) increase blood pressure.
c) constrict the coronary arteries.
d) increase sympathetic stimulation of the myocardium.
e) increase stroke volume.
9) the hydrolysis of atp causes myosin to immediately
a) swivel, moving the actin molecule.
b) release of adp.
c) release from the actin.
d) rotate into a position (cocked) to bind to actin.
e) bind more tightly to the actin (rigor).
10) match these brain areas with their descriptions.
a. cerebellum
b. hypothalamus
c. thalamus
d. cerebrum
composed of distinct regions of gray and white matter, a section of the brain that
develops with sulci and gyri
11) the two main components of plasma are ________ and ________. name two other
components found in plasma.
12) the inner lining of blood vessels is called
a) endocardium.
b) endoangium.
c) endothelium.
d) basal lamina.
e) endostatin.
13) match the part of the neuron to its description (answers may be used more than
once).
a. dendrites
b. axon
c. cell body
contribute(s) most to membrane surface area of cell
14) the intracellular effector in chemical signaling is often
a) a hormone.
b) a membrane receptor molecule.
c) atp.
d) a protein kinase.
e) cholesterol.
15) compare and contrast the appearance of cardiac muscle cells and skeletal muscle
cells under the microscope. continue with an explanation of their similarities and
differences in the initiation of their excitation-contraction coupling mechanisms. finally,
end your discussion by comparing their metabolic needs.
16) ________ are sensory receptors that respond to changes in a stimulus by altering
their firing which rapidly stops as the stimulus is maintained.
17) if a person who has not exercised regularly begins a consistent exercise routine, she
will notice that her metabolism will seem to increase as her endurance improves. why is
this?
18) make a map of the following terms: alpha motor neurons, cns, contractile fibers,
extrafusual muscle fibers, golgi tendon organs, integrating center, joint receptors,
muscle spindles, proprioreceptors, sensory neurons, sensory receptors and somatic
motor neurons.
19) in a chemical reaction, ________ between atoms are broken as atoms are
rearranged in new combinations to form different chemical substances.
20) sandy has insulin-dependent diabetes mellitus. sandy has an accident on his bike
and breaks his arm. would his insulin dosage change?