Osmoregulation

Question 1

What is homeostasis

Answer 1

The maintenance of a constant internal environment

Question 2

What must be controlled in the body to maintain homeostasis

Answer 2

Glucose
Salt
Carbon dioxide
Water
Temperature

Question 3

What is osmoregulation

Answer 3

Maintains the balance of salt and water concentrations in the body to keep constant osmotic pressure

Question 4

What happens if an animal is dehydrated

Answer 4

Not enough water to drink

Pituitary gland releases lots of ADH

High volume of water reabsorbed by kidneys

Low volume of concentrated urine to bladder

High volume of water in the blood

Normal water levels in the blood

Water content of blood is low

Question 5

What happens if an animal is hydrated

Answer 5

Too much to drink

Pituitary gland releases little ADH

Low volume of water reabsorbed by kidneys

High volume of concentrated water to bladder

Low volume of water in the blood

Normal water levels resume in the blood

Water content of blood is high

Question 6

What happens if the concentration of solutes surrounding cells become hypertonic

Answer 6

Cells will shrivel

Question 7

What happens if the concentration of solutes surrounding cells become hypotonic

Answer 7

Cells will take in too much water and burst

Question 8

What does the hypothalamus detect

Answer 8

Change in water content via osmoreceptors

controls regulation of water levels in body