PNB 2265 EXAM 4- QUIZ QUESTIONS WITH
ACCURATE SOLUTIONS | LATEST UPDATE .
Which of the following will help correct acidosis?
a) speed up rate of proton pump
b) utilize phosphate buffers for secreted H+ ions
c) renal metabolism of glutamine to produce HCO3-
d) all of the above - Correct Answer -b) utilize phosphate buffers for secreted H+ ions
What is the correct sequence of events for activation of specific helper T cell? (note= IL=
interleukin, Not: some steps may be omitted)
a) complexing antigen with antigen presenting cell, costimulation, secretion of IL-1, antigen
presentation
b) antigen presentation, costimulation, secretion of IL-1, T cell division
c) secretion of IL-1, costimulation, antigen presentation, T cell division
d) Complexing MHC-I protein with antigen, secretion of IL-2 =, secretion of IL-1 - Correct
Answer -a) complexing antigen with antigen presenting cell, costimulation, secretion of IL-1,
antigen presentation
The relationship between the ascending and descending limbs of the loop of Henle in
juxtamedullary nephrons provides the______
a) mechanism by which we reabsorb glucose in the proximal tubule
b) mechanism to maintain the osmotic gradient
c) countercurrent multiplier
d) mechanism for water reabsorption in the proximal and distal tubule - Correct Answer -c)
countercurrent multiplier
Which of the following would be the result of treatment with an ACE-I (Angiotensin
Converting Enzyme Inhibitor) drug?
a) decreased production of Renin
b) decreased production of Angiotensiongen
1
,c) decreased fluid volume in the circulatory system
d) all of the above - Correct Answer -c) decreased fluid volume in the circulatory system
The primordial follicle is contained in the ____ and the tertiary/Graffian follicle is contained
in the ______
a) ovary; fallopian tube
b) fallopian tube; ovary
c) fallopian tube; fallopian tube
d) ovary; uterus
e) ovary; ovary - Correct Answer -e) ovary; ovary
Consider the myogenic mechanism for auto-regulation of glomerular filtration rate. If renal
blood pressure rises,
a) the afferent arteriole will constrict in response
b) the afferent arteriole will dilate in response
c) the macula densa will secrete Renin
d) the macula densa will secrete K+ ions in response - Correct Answer -a) the afferent
arteriole will constrict in response
The constant region of an antibody______
a) has binding sites for C-1 complement protein
b) is involved in the effector (destroyer) mechanism for antibody-mediated immunity
c) is the same for all types of IgG antibodies
d) all of the above - Correct Answer -d) all of the above
The ______ is located in the cortex, and it's permeability to water is dependent on a hormone.
a) descending limb of the loop of Henle
b) ascending limb of the loop of Henle
c) afferent arteriole
d) later proximal convoluted tubule
2
, e) late distal convoluted tubule - Correct Answer -e) late distal convoluted tubule
A baby acquires_________ immunity to a bacterial pathogen after antibodies are transferred
from their mother during breast feeding.
a) active
b) passive
c) both active and passive - Correct Answer -b) passive
______ occurs in the distal convoluted tubule.
a) active secretion of glucose
b) aldosterone- dependent reabsorption of Na+
c) countercurrent multiplication
d) reabsorption of glucose - Correct Answer -b) aldosterone-dependent reabsorption of Na+
You have not drunk water since yesterday, and are a little dehydrated. What is the most likely
response to correct this?
a) water permeability of late distal tubule and collecting duct will increase
b) water is no longer reabsorbed by the descending limb of the loop of Henle
c) much more water is reabsorbed by the descending limb of the loop of Henle
d) the osmolarity of the urine will decrease to compensate - Correct Answer -a) water
permeability of late distal tubule and collecting duct will increase
To protect sperm, the _______ produce(s) secretions to neutralize traces of acidic urine in the
urethra.
a) prostate gland
b) ovarian follicle
c) bulbourethral gland
d) epididymis - Correct Answer -c) bulbourethral gland
3
ACCURATE SOLUTIONS | LATEST UPDATE .
Which of the following will help correct acidosis?
a) speed up rate of proton pump
b) utilize phosphate buffers for secreted H+ ions
c) renal metabolism of glutamine to produce HCO3-
d) all of the above - Correct Answer -b) utilize phosphate buffers for secreted H+ ions
What is the correct sequence of events for activation of specific helper T cell? (note= IL=
interleukin, Not: some steps may be omitted)
a) complexing antigen with antigen presenting cell, costimulation, secretion of IL-1, antigen
presentation
b) antigen presentation, costimulation, secretion of IL-1, T cell division
c) secretion of IL-1, costimulation, antigen presentation, T cell division
d) Complexing MHC-I protein with antigen, secretion of IL-2 =, secretion of IL-1 - Correct
Answer -a) complexing antigen with antigen presenting cell, costimulation, secretion of IL-1,
antigen presentation
The relationship between the ascending and descending limbs of the loop of Henle in
juxtamedullary nephrons provides the______
a) mechanism by which we reabsorb glucose in the proximal tubule
b) mechanism to maintain the osmotic gradient
c) countercurrent multiplier
d) mechanism for water reabsorption in the proximal and distal tubule - Correct Answer -c)
countercurrent multiplier
Which of the following would be the result of treatment with an ACE-I (Angiotensin
Converting Enzyme Inhibitor) drug?
a) decreased production of Renin
b) decreased production of Angiotensiongen
1
,c) decreased fluid volume in the circulatory system
d) all of the above - Correct Answer -c) decreased fluid volume in the circulatory system
The primordial follicle is contained in the ____ and the tertiary/Graffian follicle is contained
in the ______
a) ovary; fallopian tube
b) fallopian tube; ovary
c) fallopian tube; fallopian tube
d) ovary; uterus
e) ovary; ovary - Correct Answer -e) ovary; ovary
Consider the myogenic mechanism for auto-regulation of glomerular filtration rate. If renal
blood pressure rises,
a) the afferent arteriole will constrict in response
b) the afferent arteriole will dilate in response
c) the macula densa will secrete Renin
d) the macula densa will secrete K+ ions in response - Correct Answer -a) the afferent
arteriole will constrict in response
The constant region of an antibody______
a) has binding sites for C-1 complement protein
b) is involved in the effector (destroyer) mechanism for antibody-mediated immunity
c) is the same for all types of IgG antibodies
d) all of the above - Correct Answer -d) all of the above
The ______ is located in the cortex, and it's permeability to water is dependent on a hormone.
a) descending limb of the loop of Henle
b) ascending limb of the loop of Henle
c) afferent arteriole
d) later proximal convoluted tubule
2
, e) late distal convoluted tubule - Correct Answer -e) late distal convoluted tubule
A baby acquires_________ immunity to a bacterial pathogen after antibodies are transferred
from their mother during breast feeding.
a) active
b) passive
c) both active and passive - Correct Answer -b) passive
______ occurs in the distal convoluted tubule.
a) active secretion of glucose
b) aldosterone- dependent reabsorption of Na+
c) countercurrent multiplication
d) reabsorption of glucose - Correct Answer -b) aldosterone-dependent reabsorption of Na+
You have not drunk water since yesterday, and are a little dehydrated. What is the most likely
response to correct this?
a) water permeability of late distal tubule and collecting duct will increase
b) water is no longer reabsorbed by the descending limb of the loop of Henle
c) much more water is reabsorbed by the descending limb of the loop of Henle
d) the osmolarity of the urine will decrease to compensate - Correct Answer -a) water
permeability of late distal tubule and collecting duct will increase
To protect sperm, the _______ produce(s) secretions to neutralize traces of acidic urine in the
urethra.
a) prostate gland
b) ovarian follicle
c) bulbourethral gland
d) epididymis - Correct Answer -c) bulbourethral gland
3
