B12 - Homeostasis In Action

Question 1

What is the main jobs of the Kidneys?

Answer 1

To filter out the blood and remove all of the waste the body doesn’t want
Regulating the levels of ions and water

Question 2

What is the main waste product that the kidneys filter out?

Answer 2

Urea

Question 3

Where is Urea made?

Answer 3

In the liver by the process of deamination

Question 4

What does ‘Deamination’ mean?

Answer 4

Where excess amino acids are converted to fats and carbs for storage

Question 5

If the levels of ions and water become too high or too low, what happens to our body?

Answer 5

It starts to damage our cells

Question 6

How is water lost from the body?

Answer 6

Urine
Sweat
Lungs when we breathe

Question 7

If there is too much water in your body, what happens to your cells?

Answer 7

They can swell and burst

Question 8

If there is too little water in your body, what happens to your cells?

Answer 8

Your cells can shrink leading to more damage

Question 9

Inside the brain their is a structure called the Hypothalamus. What does it do?

Answer 9

It detects the concentration of water in the blood stream

Question 10

What happens when the hypothalamus detects that the water concentration in the blood stream is too low?

Answer 10

The hypothalamus sends a signal to the pituitary gland to release a hormone called ADH

Question 11

What does ADH do when its produced and released into the blood stream? (Assuming the water levels are low)

Answer 11

it travels the kidneys and tells the tubials to reabsorb more water into the blood. This means there is less urine

Question 12

What happens when the hypothalamus detects that the water concentration in the blood stream is too HIGH?

Answer 12

The hypothalamus wills stop sending signals to the pituitary gland.
Meaning less ADH is released
And the tubials will reabsorb less water into the blood - leading to more urine