1) edema is likely to occur when
a) the concentration of protein in the blood increases.
b) hemorrhage occurs.
c) the heart becomes an insufficient pump.
d) blood hydraulic pressure at the capillary decreases.
e) the blood hydraulic pressure in a capillary is equal to the blood osmotic pressure.
2) stimulation of the beta receptors on heart muscle results in
a) the formation of camp.
b) decreased rate of contraction.
c) decreased force of cardiac contraction.
d) increased sensitivity to acetylcholine.
e) all of the answers are correct.
3) match these terms with their descriptions.
a. gray matter
b. white matter
c. ascending tracts
d. descending tracts
e. propriospinal tracts
projections that carry sensory information to the brain
4) two individuals are the same age, sex, and ethnic background. while being tested for
their bmr, bill consumes 20 liters of oxygen/hour and randy consumes 16 liters of
oxygen/hour. which of the two needs to consume the most calories in order to maintain
proper health and constant weight?
a) bill
b) randy
5) the percentage of whole blood occupied by red blood cells is the
a) viscosity.
b) specific gravity.
c) ph.
d) hematocrit.
e) differential cell count.
6) in the reaction shown, identify the role of each of the participants.
co2 + h2o h2co3
a. enzyme
b. substrate(s)
c. product(s)
carbonic anhydrase
7) the bones within the middle ear connect the
a) tympanic membrane to the oval window.
b) tympanic membrane to the round window.
c) oval window to the round window.
d) cochlea to the tympanic membrane.
e) cochlea to the oval window.
8) match the transport process to its description.
a. active transport
b. passive transport
the movement of molecules via proteins embedded in the cell membrane; requires atp
9) the tip of an embryonic nerve cell’s axon is called a
a) kissing cone.
b) stem tip.
c) growth cone.
d) growth tip.
e) none of the answers are correct.
10) a 5 m solution of 100 ml of glucose contains how many grams of glucose, m.w. 180
daltons?
a) 180
b) 360
c) 90
d) 6.02 1023
e) 1.0
11) chemotaxins function in
a) digesting invading cells.
b) attracting additional immune cells.
c) poisoning and killing invading cells.
d) digesting invading cells and attracting additional immune cells.
e) digesting invading cells, attracting additional immune cells, and poisoning and
killing invading cells.
12) protein folding can take place spontaneously or with ________.
13) diagram and label the knee jerk reflex. what is the physiological function of this
reflex? explain how this reflex may be important during walking, if you didn’t notice a
dip in the sidewalk and stepped into it. what is the role of reciprocal inhibition? how
would the reflex be affected if reciprocal inhibition failed? describe the effects on the
reflex of severing each structure involved in the reflex, considering one structure at a
time. describe the effects of damaging the opposite side of the spinal cord, or areas
higher or lower on the spinal cord.
14) the ability of a carrier molecule to transport only one specific molecule or a group
of closely related molecules is called ________.
15) active bone marrow is red because of the presence of ________ whereas inactive
marrow is ________ because of an abundance of adipocytes.
16) the weather person gleefully tells us that the temperature is 95, but the heat index is
103 and a heat advisory is in effect. what does this mean? is humidity high or low? why
does it matter? who is most affected, and why? what are some steps one could take to
adjust?
17) the larynx contains the ________, connective tissue bands that tighten and vibrate
to create sound when air moves past them.