Question 1

If the afferent arteriole that supplies blood to the glomerulus becomes dilated, then

Accepted Answer

Dilation of the afferent arteriole increases the blood flow to the glomerulus and increases hydrostatic pressure in the glomerulus, which in turn increases the glomerular filtration rate. Therefore, option C, the glomerular filtration rate increases, is the correct choice. None of the other options are affected by dilation of the afferent arteriole.

Question 2

Which of the following statements about the excretory system of insects is false?

Accepted Answer

The answer of Which of the following statements about the...

Question 3

Which of the following is not a normal constituent of the glomerular filtrate?

Accepted Answer

Red blood cells are not normally present in the glomerular filtrate as they are too large to pass through the filtration barrier of the glomerulus. The other options listed are all normal constituents of the glomerular filtrate.

Question 4

High levels of antidiuretic hormone cause the collecting ducts to become (more/less) _______ permeable to water, and highly concentrated urine is produced.

Accepted Answer

The answer of High levels of antidiuretic hormone cause the...

Question 5

Na⁺ and Cl^- are actively transported out of the tubules to help set up the countercurrent multiplier. Sites of active Na⁺ and Cl^- transport in the nephron are _______ and the _______.

Accepted Answer

The answer of Na⁺ and Cl^- are actively transported out...

Question 6

Use the following to answer questions

Refer to the diagram below to complete the statements about the mammalian nephron that follow.

-The NaCl concentration in the extracellular fluid would be greatest in the area of letter _______.

Accepted Answer

The answer of Use the following to answer questions

Refer...

Question 7

The sole mechanism for water reabsorption by the renal tubules is

Accepted Answer

Water reabsorption by the renal tubules occurs primarily via osmosis. This is due to the creation of an osmotic gradient by the active transport of solutes (such as sodium and chloride ions) out of the tubules and into the interstitial fluid, which draws water out of the tubules and into the surrounding capillaries. Cotransport with sodium and bicarbonate ions also occurs in the renal tubules, but these mechanisms do not account for water reabsorption alone.

Question 8

Refer to the diagram below of the vertebrate nephron. Which of the following descriptions is paired incorrectly with its location in the diagram?

Accepted Answer

The answer of Refer to the diagram below of the...

Question 9

Which of the following represents the correct pathway of water and solutes traveling through a nephron?

Accepted Answer

The answer of Which of the following represents the correct...

Question 10

Use the following to answer questions

Refer to the diagram below to complete the statements about the mammalian nephron that follow.

-The osmolarity of the filtrate next to letters _______ is similar to the osmolarity of blood plasma.

Accepted Answer

The answer of Use the following to answer questions

Refer...

Question 11

Use the following to answer questions

Refer to the diagram below to complete the statements about the mammalian nephron that follow.

-The composition of the filtrate would be most like plasma in the tubule next to letter _______.

Accepted Answer

The answer of Use the following to answer questions

Refer...

Question 12

The hormone produced by the heart that influences kidney function is called _______.

Accepted Answer

The answer of The hormone produced by the heart that...

Question 13

Osmoreceptors in the brain detect changes in blood ion concentration that can result reflexively in _______ by the kidneys.

Accepted Answer

Osmoreceptors in the brain detect changes in blood ion concentration that can result reflexively in water retention, water loss, and ion retention by the kidneys.

Question 14

As the glomerular filtrate passes through the renal tubule, about _______ percent is returned to the blood.

Accepted Answer

Approximately 98% of the glomerular filtrate is reabsorbed back into the bloodstream as it passes through the renal tubule.

Question 15

In order to maintain homeostasis, a marine bony fish

Accepted Answer

The answer of In order to maintain homeostasis, a marine...

Question 16

Use the following to answer questions:
Refer to the diagram below of the mammalian nephron. 
-Which of the following descriptions is paired correctly with its location in the diagram?
A) 2 - The composition of the filtrate is most like that of plasma in the adjacent tubule.
B) 2 - The osmolarity of the filtrate is similar to that of the plasma in the adjacent tubule.
C) 3 - The sodium chloride concentration of the interstitial fluid is highest adjacent to this structure.
D) 4 - The osmolarity of the sodium chloride concentration is similar to that of the plasma in the adjacent tubule.
E) 6 - The urine is most concentrated in the adjacent tubule.

Accepted Answer

The answer of Use the following to answer questions:
Refer to...

Question 17

Several hormones help regulate water and solute uptake and release in the nephron. Antidiuretic hormone (ADH) promotes _______ in response to _______.

Accepted Answer

ADH promotes increased permeability of the collecting duct to water, which allows for increased water reabsorption and concentration of urine. This occurs in response to decreased blood pressure, as ADH helps to retain fluid in the body and increase blood volume. Choices A, B, D, and E are all incorrect because they do not accurately describe the role of ADH in regulating water and solute uptake and release in the nephron.

Question 18

Use the following to answer questions

Refer to the diagram below to complete the statements about the mammalian nephron that follow.

-The urine would be most concentrated in the collecting duct next to letter _______.

Accepted Answer

The answer of Use the following to answer questions

Refer...

Question 19

Use the following to answer questions

Refer to the diagram below to complete the statements about the mammalian nephron that follow.

-Most of the glomerular filtrate is reabsorbed into the blood in peritubular capillaries next to letter _______.

Accepted Answer

The answer of Use the following to answer questions

Refer...

Question 20

Use the following to answer questions:
Refer to the diagram below of the mammalian nephron. 
-Which of the following descriptions is paired correctly with its location in the diagram?

Accepted Answer

The answer of Use the following to answer questions:
Refer to...

Quiz 52: Salt and Water Balance and Nitrogen

If the afferent arteriole that supplies blood to the glomerulus becomes dilated, then

Which of the following statements about the excretory system of insects is false?

Which of the following is not a normal constituent of the glomerular filtrate?

High levels of antidiuretic hormone cause the collecting ducts to become (more/less) _______ permeable to water, and highly concentrated urine is produced.

Na⁺ and Cl^- are actively transported out of the tubules to help set up the countercurrent multiplier. Sites of active Na⁺ and Cl^- transport in the nephron are _ and the _.

Use the following to answer questions Refer to the diagram below to complete the statements about the mammalian nephron that follow. -The NaCl concentration in the extracellular fluid would be greatest in the area of letter _______.

The sole mechanism for water reabsorption by the renal tubules is

Refer to the diagram below of the vertebrate nephron. Which of the following descriptions is paired incorrectly with its location in the diagram?

Which of the following represents the correct pathway of water and solutes traveling through a nephron?

Use the following to answer questions Refer to the diagram below to complete the statements about the mammalian nephron that follow. -The osmolarity of the filtrate next to letters _______ is similar to the osmolarity of blood plasma.

Use the following to answer questions Refer to the diagram below to complete the statements about the mammalian nephron that follow. -The composition of the filtrate would be most like plasma in the tubule next to letter _______.

The hormone produced by the heart that influences kidney function is called _______.

Osmoreceptors in the brain detect changes in blood ion concentration that can result reflexively in _______ by the kidneys.

As the glomerular filtrate passes through the renal tubule, about _______ percent is returned to the blood.

In order to maintain homeostasis, a marine bony fish

Several hormones help regulate water and solute uptake and release in the nephron. Antidiuretic hormone (ADH) promotes _ in response to _.

Use the following to answer questions Refer to the diagram below to complete the statements about the mammalian nephron that follow. -The urine would be most concentrated in the collecting duct next to letter _______.

Use the following to answer questions Refer to the diagram below to complete the statements about the mammalian nephron that follow. -Most of the glomerular filtrate is reabsorbed into the blood in peritubular capillaries next to letter _______.

Use the following to answer questions: Refer to the diagram below of the mammalian nephron. -Which of the following descriptions is paired correctly with its location in the diagram?

Quiz 52: Salt and Water Balance and Nitrogen

If the afferent arteriole that supplies blood to the glomerulus becomes dilated, then

Which of the following statements about the excretory system of insects is false?

Which of the following is not a normal constituent of the glomerular filtrate?

High levels of antidiuretic hormone cause the collecting ducts to become (more/less) _______ permeable to water, and highly concentrated urine is produced.

Na+ and Cl- are actively transported out of the tubules to help set up the countercurrent multiplier. Sites of active Na+ and Cl- transport in the nephron are _______ and the _______.

Use the following to answer questions Refer to the diagram below to complete the statements about the mammalian nephron that follow. -The NaCl concentration in the extracellular fluid would be greatest in the area of letter _______.

The sole mechanism for water reabsorption by the renal tubules is

Refer to the diagram below of the vertebrate nephron. Which of the following descriptions is paired incorrectly with its location in the diagram?

Which of the following represents the correct pathway of water and solutes traveling through a nephron?

Use the following to answer questions Refer to the diagram below to complete the statements about the mammalian nephron that follow. -The osmolarity of the filtrate next to letters _______ is similar to the osmolarity of blood plasma.

Use the following to answer questions Refer to the diagram below to complete the statements about the mammalian nephron that follow. -The composition of the filtrate would be most like plasma in the tubule next to letter _______.

The hormone produced by the heart that influences kidney function is called _______.

Osmoreceptors in the brain detect changes in blood ion concentration that can result reflexively in _______ by the kidneys.

As the glomerular filtrate passes through the renal tubule, about _______ percent is returned to the blood.

In order to maintain homeostasis, a marine bony fish

Several hormones help regulate water and solute uptake and release in the nephron. Antidiuretic hormone (ADH) promotes _______ in response to _______.

Use the following to answer questions Refer to the diagram below to complete the statements about the mammalian nephron that follow. -The urine would be most concentrated in the collecting duct next to letter _______.

Use the following to answer questions Refer to the diagram below to complete the statements about the mammalian nephron that follow. -Most of the glomerular filtrate is reabsorbed into the blood in peritubular capillaries next to letter _______.

Use the following to answer questions: Refer to the diagram below of the mammalian nephron. -Which of the following descriptions is paired correctly with its location in the diagram?

Na⁺ and Cl^- are actively transported out of the tubules to help set up the countercurrent multiplier. Sites of active Na⁺ and Cl^- transport in the nephron are _ and the _.

Several hormones help regulate water and solute uptake and release in the nephron. Antidiuretic hormone (ADH) promotes _ in response to _.