The Kidneys

Question 1

What is the primary function of the kidneys?

Answer 1

To act as filters to clean the blood

Question 2

What process removes waste products from the blood in the kidneys?

Answer 2

Filtration

Question 3

What is the process called that allows useful substances to be absorbed back into the blood?

Answer 3

Selective reabsorption

Question 4

Name a substance that is removed from the body in urine.

Answer 4

UREA

Question 5

What happens to excess amino acids in the body?

Answer 5

Converted into fats and carbohydrates

Question 6

Where does the conversion of excess amino acids occur?

Answer 6

In the liver

Question 7

What toxic substance is converted to urea in the liver?

Answer 7

Ammonia

Question 8

What role do ions play in the body regarding kidneys?

Answer 8

Maintain the balance of ions and water

Question 9

How do ions and water affect cell function?

Answer 9

Too much or too little water can damage cells or impair their function

Question 10

What is the main hormone that controls the concentration of urine?

Answer 10

Anti-diuretic hormone (ADH)

Question 11

Which gland releases ADH into the bloodstream?

Answer 11

Pituitary gland

Question 12

How does the brain monitor the water content of the blood?

Answer 12

By instructing the pituitary gland to release ADH as needed

Question 13

What is the mechanism that regulates water content in the body?

Answer 13

Negative feedback

Question 14

Fill in the blank: The kidneys remove excess ions and water from the body in _______.

Answer 14

urine

Question 15

True or False: The amount of water lost through sweat is regulated by the kidneys.

Answer 15

False

Question 16

What happens when the water content in the body is too low?

Answer 16

The pituitary gland releases more ADH to reabsorb water

Question 17

What happens when the water content in the body is too high?

Answer 17

A mechanism is triggered to bring it back to normal