Mastering A&P 2 CH 25 HW | Questions plus
Answers | Exam Review
1. The rate of kidney filtrate formation would normally be dependent upon all of the following factors
except .
-renal artery/arteriole diameters
-blood calcium level
-filtration membrane integrity
-systemic blood pressure: blood calcium level
2. When given to a patient, which of the following substances would increase his or her urinary
output?
-intravenous saline
-antidiuretic hormone
-aldosterone
-albumin: intravenous saline
3. Complete the Concept Map to describe the importance of and mechanisms underlying glomerular
filtration, tubular reabsorption, and tubular secretion.:
4. Which of the following materials is NOT reabsorbed in the nephron loop? glucose
chloride ions
sodium ions
water: glucose
Correct
Virtually all of the glucose in the filtrate is reabsorbed in the proximal convoluted tubule before
reaching the nephron loop.
5. The reabsorption of sodium in the DCT is regulated primarily by
.
aldosterone and ANP
parathyroid hormone
aldosterone
renin and angiotensin: aldosterone and ANP
6. How are nutrient molecules such as glucose and amino acids reabsorbed through the apical
surfaces of the tubule epithelia?.
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, Mastering A&P 2 CH 25 HW | Questions plus
Answers | Exam Review
by simple diffusion by
osmosis
by primary active transport
by secondary active transport: by secondary active transport
7. Filtrate in a typical healthy nephron will NEVER include .
blood cells and proteins amino acid
fatty acids glucose
K+ and Na+ ions: blood cells and proteins
Correct
Proteins and blood cells are too large to pass through the filtration membrane between the blood
and the glomerular capsule.
8. Which of the following is the primary function of the juxtaglomerular com- plex?
concentrating urine
releases chemical signals that regulate the rate of filtrate formation
a system that protects the nephron from some chemicals found in blood reabsorption of Na+ and othe
ions: releases chemical signals that regulate the rate of filtrate formation
Correct
The macula densa cells and granular cells of the juxtaglomerular complex (JGC) release,
respectively, vasoactive chemicals and renin. These chemical messengers lead to changes in
vasomotor activity and Na+ reabsorption that affect the rate of filtrate formation and systemic
blood pressure.
9. Which capillary bed produces filtrate?: glomerulus
Correct
The glomerulus (capillary bed) in the glomerular capsule produces filtrate high fluid due to
pressure within the vessels.
the
10.Where in the nephron does most solute reabsorption occur?
-glomerulus
-proximal convoluted tubule
-collecting duct
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-distal convoluted tubule: proximal convoluted tubule
Correct
The proximal convoluted tubule (PCT) is where most reabsorption takes place.
11.Which of the following substances is not normally found in filtrate?
-nitrogenous waste particles, such as
urea
-water and small solutes
-blood cells and large particles
-ions, such as sodium and potassium: blood cells and large particles
Correct
Yes, both blood cells and large particles, such as proteins, are not allowed to filter through a
healthy glomerular membrane.
12.What is the primary driving force (pressure) that produces glomerular filtration?
-colloid osmotic pressure of blood
-gravity
-hydrostatic pressure of blood (blood pressure): hydrostatic pressure of blood (blood pressure)
Correct
Yes, the hydrostatic pressure of blood forces fluid out of the glomerular capillaries.
13.Which substance would be found in higher concentration if the membrane were damaged?
-creatinine
-glucose
-protein
-chloride: protein
Correct
Yes, large proteins are not normally filtered by a healthy glomerular membrane.
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Answers | Exam Review
1. The rate of kidney filtrate formation would normally be dependent upon all of the following factors
except .
-renal artery/arteriole diameters
-blood calcium level
-filtration membrane integrity
-systemic blood pressure: blood calcium level
2. When given to a patient, which of the following substances would increase his or her urinary
output?
-intravenous saline
-antidiuretic hormone
-aldosterone
-albumin: intravenous saline
3. Complete the Concept Map to describe the importance of and mechanisms underlying glomerular
filtration, tubular reabsorption, and tubular secretion.:
4. Which of the following materials is NOT reabsorbed in the nephron loop? glucose
chloride ions
sodium ions
water: glucose
Correct
Virtually all of the glucose in the filtrate is reabsorbed in the proximal convoluted tubule before
reaching the nephron loop.
5. The reabsorption of sodium in the DCT is regulated primarily by
.
aldosterone and ANP
parathyroid hormone
aldosterone
renin and angiotensin: aldosterone and ANP
6. How are nutrient molecules such as glucose and amino acids reabsorbed through the apical
surfaces of the tubule epithelia?.
For assistance with assignments contact
, Mastering A&P 2 CH 25 HW | Questions plus
Answers | Exam Review
by simple diffusion by
osmosis
by primary active transport
by secondary active transport: by secondary active transport
7. Filtrate in a typical healthy nephron will NEVER include .
blood cells and proteins amino acid
fatty acids glucose
K+ and Na+ ions: blood cells and proteins
Correct
Proteins and blood cells are too large to pass through the filtration membrane between the blood
and the glomerular capsule.
8. Which of the following is the primary function of the juxtaglomerular com- plex?
concentrating urine
releases chemical signals that regulate the rate of filtrate formation
a system that protects the nephron from some chemicals found in blood reabsorption of Na+ and othe
ions: releases chemical signals that regulate the rate of filtrate formation
Correct
The macula densa cells and granular cells of the juxtaglomerular complex (JGC) release,
respectively, vasoactive chemicals and renin. These chemical messengers lead to changes in
vasomotor activity and Na+ reabsorption that affect the rate of filtrate formation and systemic
blood pressure.
9. Which capillary bed produces filtrate?: glomerulus
Correct
The glomerulus (capillary bed) in the glomerular capsule produces filtrate high fluid due to
pressure within the vessels.
the
10.Where in the nephron does most solute reabsorption occur?
-glomerulus
-proximal convoluted tubule
-collecting duct
For assistance with assignments contact
, Mastering A&P 2 CH 25 HW | Questions plus
Answers | Exam Review
-distal convoluted tubule: proximal convoluted tubule
Correct
The proximal convoluted tubule (PCT) is where most reabsorption takes place.
11.Which of the following substances is not normally found in filtrate?
-nitrogenous waste particles, such as
urea
-water and small solutes
-blood cells and large particles
-ions, such as sodium and potassium: blood cells and large particles
Correct
Yes, both blood cells and large particles, such as proteins, are not allowed to filter through a
healthy glomerular membrane.
12.What is the primary driving force (pressure) that produces glomerular filtration?
-colloid osmotic pressure of blood
-gravity
-hydrostatic pressure of blood (blood pressure): hydrostatic pressure of blood (blood pressure)
Correct
Yes, the hydrostatic pressure of blood forces fluid out of the glomerular capillaries.
13.Which substance would be found in higher concentration if the membrane were damaged?
-creatinine
-glucose
-protein
-chloride: protein
Correct
Yes, large proteins are not normally filtered by a healthy glomerular membrane.
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