Question 1

Which hormone influences the concentration of hydrogen ions in the filtrate formed by the kidneys?

Accepted Answer

Aldosterone influences the concentration of hydrogen ions in the filtrate by promoting the reabsorption of sodium and the secretion of potassium and hydrogen ions in the distal tubules and collecting ducts of the kidneys.

Question 2

When fewer hydrogen ions are secreted into the filtrate, how is blood pH affected?

Accepted Answer

When fewer hydrogen ions are secreted into the filtrate, more hydrogen ions remain in the blood, leading to a decrease in blood pH, making it more acidic.

Question 3

Mrs. Frykholm is experiencing diabetic ketoacidosis, which causes metabolic acidosis. She has experienced damage to her kidneys from diabetes mellitus. Predict how her body compensates to return her blood pH to normal.

Accepted Answer

Hyperventilation helps to expel more CO2 from the body, reducing carbonic acid levels and thus compensating for metabolic acidosis by increasing blood pH.

Question 4

The pH of the blood primarily depends upon a normal concentration of:

Accepted Answer

The pH of the blood is primarily determined by the concentration of hydrogen ions, as pH is a measure of the acidity or alkalinity of a solution, which is directly related to the concentration of hydrogen ions.

Question 5

What statement does NOT describe the methods by which chemical buffer systems operate to maintain pH?

Accepted Answer

Chemical buffer systems do not remove all excess hydrogen ions from the body in the urine; they primarily work by neutralizing acids and bases in the blood and other fluids to maintain pH balance.

Question 6

When carbon dioxide enters the distal tubule of a nephron in the kidney and reacts with water, what is the destination of the resulting hydrogen ion?

Accepted Answer

The hydrogen ions are secreted into the filtrate in the distal tubule to help regulate acid-base balance by excreting excess hydrogen ions.

Question 7

Which condition is usually due to hyperparathyroidism?

Accepted Answer

Hyperparathyroidism often leads to hypercalcemia because the parathyroid hormone increases calcium levels in the blood.

Question 8

Hyperventilation is the compensation for an acid ^-base imbalance known as:

Accepted Answer

Hyperventilation is a compensatory mechanism for metabolic acidosis, as it helps to expel CO2, reducing acidity in the blood.

Question 9

Which ions are critical for the activation of some enzymes?

Accepted Answer

Magnesium ions are critical for the activation of many enzymes, particularly those involved in DNA replication and repair, as well as ATP-related processes.

Question 10

What triggers the release of parathyroid hormone (PTH)?

Accepted Answer

Parathyroid hormone (PTH) is released in response to low blood calcium levels to help increase calcium concentration in the blood.

Question 11

Sarah was so upset and nervous that a snake was in her house that she began hyperventilating. Predict the acid ^-base imbalance created by her psychological state.

Accepted Answer

Hyperventilation causes excessive loss of carbon dioxide, leading to a decrease in carbonic acid and an increase in blood pH, resulting in respiratory alkalosis.

Question 12

Through what two systems are carbon dioxide eliminated from the body?

Accepted Answer

The respiratory system eliminates carbon dioxide through exhalation, and the urinary system helps remove carbon dioxide indirectly by excreting bicarbonate, which is a form of carbon dioxide transport in the blood.

Question 13

Select the blood pH that represents acidosis.

Accepted Answer

A blood pH of 7.24 is below the normal range (7.35-7.45) and indicates acidosis.

Question 14

What leads to respiratory acidosis?

Accepted Answer

Hypoventilation leads to an accumulation of carbon dioxide in the blood, which increases the concentration of carbonic acid and results in respiratory acidosis.

Question 15

What ion concentration is linked to calcium ion concentration and regulated by vitamin D3 (calcitriol)?

Accepted Answer

Vitamin D3 (calcitriol) helps regulate calcium and phosphate ion concentrations in the blood, promoting the absorption of these ions in the intestines.

Question 16

Determine the compensation for respiratory acidosis.

Accepted Answer

In respiratory acidosis, the body compensates by increasing the reabsorption of bicarbonate ions from the filtrate in the kidneys to help neutralize the excess acid in the blood.

Question 17

Why are chlorine ions important?

Accepted Answer

Chlorine ions are important for the production of hydrochloric acid in the stomach, which is essential for digestion.

Question 18

Determine the product formed when hydrogen ions from a strong acid are accepted by the bicarbonate ion.

Accepted Answer

When hydrogen ions (H+) from a strong acid are accepted by the bicarbonate ion (HCO3-), carbonic acid (H2CO3) is formed.

Question 19

Determine the effect of hypocalcemia on the heart.

Accepted Answer

The answer of Determine the effect of hypocalcemia on the...

Question 20

Identify the role of the urinary system in acid ^-base balance. 1. The kidneys can secrete bicarbonate ions when the pH of the blood rises. 2) The kidneys contribute to acid ^-base balance by excreting fixed acids that the lungs cannot excrete. 3) The kidneys can manufacture new bicarbonate ions when the pH of the blood falls. 4) The kidneys contribute to acid ^-base balance by controlling the concentration of bicarbonate ions in the blood.

Accepted Answer

The kidneys play a crucial role in acid-base balance by regulating the concentration of bicarbonate ions in the blood, excreting fixed acids, and secreting bicarbonate ions when necessary.

Quiz 25: Fluid, Electrolyte Acid-Base Homeostasis

Which hormone influences the concentration of hydrogen ions in the filtrate formed by the kidneys?

When fewer hydrogen ions are secreted into the filtrate, how is blood pH affected?

Mrs. Frykholm is experiencing diabetic ketoacidosis, which causes metabolic acidosis. She has experienced damage to her kidneys from diabetes mellitus. Predict how her body compensates to return her blood pH to normal.

The pH of the blood primarily depends upon a normal concentration of:

What statement does NOT describe the methods by which chemical buffer systems operate to maintain pH?

When carbon dioxide enters the distal tubule of a nephron in the kidney and reacts with water, what is the destination of the resulting hydrogen ion?

Which condition is usually due to hyperparathyroidism?

Hyperventilation is the compensation for an acid ^-base imbalance known as:

Which ions are critical for the activation of some enzymes?

What triggers the release of parathyroid hormone (PTH) ?

Sarah was so upset and nervous that a snake was in her house that she began hyperventilating. Predict the acid ^-base imbalance created by her psychological state.

Through what two systems are carbon dioxide eliminated from the body?

Select the blood pH that represents acidosis.

What leads to respiratory acidosis?

What ion concentration is linked to calcium ion concentration and regulated by vitamin D3 (calcitriol) ?

Determine the compensation for respiratory acidosis.

Why are chlorine ions important?

Determine the product formed when hydrogen ions from a strong acid are accepted by the bicarbonate ion.

Determine the effect of hypocalcemia on the heart.

Quiz 25: Fluid, Electrolyte Acid-Base Homeostasis

Which hormone influences the concentration of hydrogen ions in the filtrate formed by the kidneys?

When fewer hydrogen ions are secreted into the filtrate, how is blood pH affected?

Mrs. Frykholm is experiencing diabetic ketoacidosis, which causes metabolic acidosis. She has experienced damage to her kidneys from diabetes mellitus. Predict how her body compensates to return her blood pH to normal.

The pH of the blood primarily depends upon a normal concentration of:

What statement does NOT describe the methods by which chemical buffer systems operate to maintain pH?

When carbon dioxide enters the distal tubule of a nephron in the kidney and reacts with water, what is the destination of the resulting hydrogen ion?

Which condition is usually due to hyperparathyroidism?

Hyperventilation is the compensation for an acid -base imbalance known as:

Which ions are critical for the activation of some enzymes?

What triggers the release of parathyroid hormone (PTH) ?

Sarah was so upset and nervous that a snake was in her house that she began hyperventilating. Predict the acid -base imbalance created by her psychological state.

Through what two systems are carbon dioxide eliminated from the body?

Select the blood pH that represents acidosis.

What leads to respiratory acidosis?

What ion concentration is linked to calcium ion concentration and regulated by vitamin D3 (calcitriol) ?

Determine the compensation for respiratory acidosis.

Why are chlorine ions important?

Determine the product formed when hydrogen ions from a strong acid are accepted by the bicarbonate ion.

Determine the effect of hypocalcemia on the heart.

Hyperventilation is the compensation for an acid ^-base imbalance known as:

Sarah was so upset and nervous that a snake was in her house that she began hyperventilating. Predict the acid ^-base imbalance created by her psychological state.