Le Système Excréteur (Anglais, AI)

Question 1

What is homeostasis?

Answer 1

Homeostasis is the process by which living organisms maintain a stable internal environment despite changes in external conditions.

Question 2

True or False: The excretory system is responsible for the removal of waste products from the body.

Answer 2

True

Question 3

What are the primary organs involved in the excretory system?

Answer 3

The primary organs involved are the kidneys, ureters, bladder, and urethra.

Question 4

Fill in the blank: The kidneys regulate the balance of _____ in the body.

Answer 4

water and electrolytes

Question 5

What is the main functional unit of the kidney?

Answer 5

The nephron is the main functional unit of the kidney.

Question 6

Multiple Choice: Which of the following is NOT a function of the excretory system? A) Regulation of blood pressure B) Production of hormones C) Removal of carbon dioxide D) Regulation of body temperature

Answer 6

C) Removal of carbon dioxide

Question 7

True or False: The excretory system also plays a role in regulating blood pH.

Answer 7

True

Question 8

What is urea, and how is it formed?

Answer 8

Urea is a waste product formed from the breakdown of proteins in the liver and is excreted by the kidneys.

Question 9

Fill in the blank: The _____ helps to concentrate urine and conserve water.

Answer 9

loop of Henle

Question 10

What is the significance of the renal artery?

Answer 10

The renal artery supplies blood to the kidneys for filtration.

Question 11

Multiple Choice: Which hormone regulates water reabsorption in the kidneys? A) Insulin B) Aldosterone C) Antidiuretic hormone D) Cortisol

Answer 11

C) Antidiuretic hormone

Question 12

What is the function of the bladder?

Answer 12

The bladder stores urine until it is excreted from the body.

Question 13

True or False: The ureters carry urine from the bladder to the outside of the body.

Answer 13

False

Question 14

What is osmoregulation?

Answer 14

Osmoregulation is the process by which organisms regulate the osmotic pressure of their body fluids to maintain homeostasis.

Question 15

Fill in the blank: The process of filtering blood in the kidneys is called _____.

Answer 15

glomerular filtration

Question 16

What is the role of aldosterone in the excretory system?

Answer 16

Aldosterone increases sodium reabsorption in the kidneys, which helps to regulate blood pressure and fluid balance.

Question 17

Multiple Choice: Which part of the nephron is responsible for the reabsorption of water? A) Glomerulus B) Bowman’s capsule C) Proximal tubule D) Distal tubule

Answer 17

C) Proximal tubule

Question 18

What happens during the process of tubular secretion?

Answer 18

Tubular secretion involves the transfer of materials from the blood into the tubular fluid in the nephron, helping to eliminate waste.

Question 19

True or False: The excretory system has no impact on electrolyte balance.

Answer 19

False

Question 20

What is the main waste product excreted by the kidneys?

Answer 20

The main waste product excreted by the kidneys is urine, which contains urea, creatinine, and other waste substances.

Question 21

Fill in the blank: The _____ is the tube that carries urine from the kidneys to the bladder.

Answer 21

ureter

Question 22

What is the importance of maintaining acid-base balance in the body?

Answer 22

Maintaining acid-base balance is crucial for normal cellular functions and overall metabolic processes.

Question 23

Multiple Choice: Which of the following conditions can result from a failure of the excretory system? A) Diabetes B) Kidney stones C) Hypertension D) All of the above

Answer 23

D) All of the above

Question 24

What role does the hypothalamus play in homeostasis?

Answer 24

The hypothalamus regulates various bodily functions, including thirst and temperature control, contributing to homeostasis.