BIO E109 FINAL EXAM COMPLETE
478 TESTED QUESTIONS WITH 100%
VERIFIED ANSWERS
\.The hormone synthesized and released by the kidneys that stimulates the
production of red blood cells is
a) fibrinogen
b) transferrin
c) interleukin
d) erythropoietin
e) thrombopoietin - ANSWERS✔-d (erythropoietin)
\.For a molecule X that is filtered at the glomerulus, if the excretion rate is greater
than the filtration rate,
a) there is net reabsorption and secretion of X
b) there is net secretion of X
c) there is net reabsorption of X
d) X passes through the nephron without net reabsorption or secretion
e) X bypasses the loop of Henle after leaving the Bowman's capsule - ANSWERS✔-
b (there is net secretion of X)
,\.Inulin is used in studies of kidney function because it is
a) secreted but not reabsorbed
b) reabsorbed but not secreted
c) filtered but not secreted
d) secreted but not filtered
e) reabsorbed but not filtered - ANSWERS✔-c (filtered but not secreted)
\.Marker substances can be used to estimate the volume of different fluid
compartments in the body. ICF (intracellular fluid) and interstitial fluid volumes
cannot be measured directly because there are no unique markers for these
compartments. However, the total volume of ICF may be estimated by the
difference between the
a) total body volume and the ECF (extracellular fluid) volume
b) ECF (extracellular fluid) volume and the plasma volume
c) total body volume and the plasma volume
d) ECF (extracellular fluid) volume and the interstitial volume - ANSWERS✔-a (total
body volume and the ECF extracellular fluid volume)
\.Functions of the kidneys include all but one of the following. Identify the
exception.
a) regulation of extracellular fluid volume
,b) maintenance of ion balance in body fluids
c) regulation of blood protein levels
d) regulation of blood osmolarity
e) regulation of blood pH - ANSWERS✔-c (regulation of blood protein levels)
\.If the clearance of a substance X is less than inulin clearance,
a) there is net reabsorption of X
b) X is neither reabsorbed nor secreted
c) there is net reabsorption of X and inulin
d) there is net secretion of X
e) there is net secretion of X and net reabsorption of inulin - ANSWERS✔-a (there
is net reabsorption of X)
\.A chemical signal will be identified as a hormone if it
a) is released into the bloodstream for distribution throughout the body
b) is present in high concentrations
c) is transcribed directly from DNA
d) is only present in adolescents
e) is a stable molecule and continues to exert its action indefinitely (not broken
down unlike other biologically important molecules) - ANSWERS✔-a (is released
into the bloodstream for distribution throughout the body)
, \.The majority of hormones in the body are
a) peptide hormones
b) steroid hormones
c) carbohydrate hormones
d) amine hormones
e) lipid hormones - ANSWERS✔-a (peptide hormones)
\.An individual's thyroid gland becomes diseased and starts making less thyroid
hormone. Referring to the figure (you may assume that the thyroid gland is IC3
and the thyroid hormone is H3), what should you expect for the response (to the
decrease in H3) by the hypothalamus and anterior pituitary?
a) The hypothalamus and anterior pituitary will not show a response
b) The hypothalamus will make less H1 and the anterior pituitary will make more
H2
c) The hypothalamus will make more H1 and the anterior pituitary will make less
H2
d) The hypothalamus will make less H1 and the anterior pituitary will make less H2
e) The hypothalamus will make more H1 and the anterior pituitary will make more
H2 - ANSWERS✔-e (The hypothalamus will make more H1 and the anterior
pituitary will make more H2)
\.One possible limiting factor in maximal exercise (e.g. the fastest speed that you
can run) is the supply of oxygen to the muscle fibers. If this is the limiting factor,
478 TESTED QUESTIONS WITH 100%
VERIFIED ANSWERS
\.The hormone synthesized and released by the kidneys that stimulates the
production of red blood cells is
a) fibrinogen
b) transferrin
c) interleukin
d) erythropoietin
e) thrombopoietin - ANSWERS✔-d (erythropoietin)
\.For a molecule X that is filtered at the glomerulus, if the excretion rate is greater
than the filtration rate,
a) there is net reabsorption and secretion of X
b) there is net secretion of X
c) there is net reabsorption of X
d) X passes through the nephron without net reabsorption or secretion
e) X bypasses the loop of Henle after leaving the Bowman's capsule - ANSWERS✔-
b (there is net secretion of X)
,\.Inulin is used in studies of kidney function because it is
a) secreted but not reabsorbed
b) reabsorbed but not secreted
c) filtered but not secreted
d) secreted but not filtered
e) reabsorbed but not filtered - ANSWERS✔-c (filtered but not secreted)
\.Marker substances can be used to estimate the volume of different fluid
compartments in the body. ICF (intracellular fluid) and interstitial fluid volumes
cannot be measured directly because there are no unique markers for these
compartments. However, the total volume of ICF may be estimated by the
difference between the
a) total body volume and the ECF (extracellular fluid) volume
b) ECF (extracellular fluid) volume and the plasma volume
c) total body volume and the plasma volume
d) ECF (extracellular fluid) volume and the interstitial volume - ANSWERS✔-a (total
body volume and the ECF extracellular fluid volume)
\.Functions of the kidneys include all but one of the following. Identify the
exception.
a) regulation of extracellular fluid volume
,b) maintenance of ion balance in body fluids
c) regulation of blood protein levels
d) regulation of blood osmolarity
e) regulation of blood pH - ANSWERS✔-c (regulation of blood protein levels)
\.If the clearance of a substance X is less than inulin clearance,
a) there is net reabsorption of X
b) X is neither reabsorbed nor secreted
c) there is net reabsorption of X and inulin
d) there is net secretion of X
e) there is net secretion of X and net reabsorption of inulin - ANSWERS✔-a (there
is net reabsorption of X)
\.A chemical signal will be identified as a hormone if it
a) is released into the bloodstream for distribution throughout the body
b) is present in high concentrations
c) is transcribed directly from DNA
d) is only present in adolescents
e) is a stable molecule and continues to exert its action indefinitely (not broken
down unlike other biologically important molecules) - ANSWERS✔-a (is released
into the bloodstream for distribution throughout the body)
, \.The majority of hormones in the body are
a) peptide hormones
b) steroid hormones
c) carbohydrate hormones
d) amine hormones
e) lipid hormones - ANSWERS✔-a (peptide hormones)
\.An individual's thyroid gland becomes diseased and starts making less thyroid
hormone. Referring to the figure (you may assume that the thyroid gland is IC3
and the thyroid hormone is H3), what should you expect for the response (to the
decrease in H3) by the hypothalamus and anterior pituitary?
a) The hypothalamus and anterior pituitary will not show a response
b) The hypothalamus will make less H1 and the anterior pituitary will make more
H2
c) The hypothalamus will make more H1 and the anterior pituitary will make less
H2
d) The hypothalamus will make less H1 and the anterior pituitary will make less H2
e) The hypothalamus will make more H1 and the anterior pituitary will make more
H2 - ANSWERS✔-e (The hypothalamus will make more H1 and the anterior
pituitary will make more H2)
\.One possible limiting factor in maximal exercise (e.g. the fastest speed that you
can run) is the supply of oxygen to the muscle fibers. If this is the limiting factor,
