Homeostasis - Control Of Blood Glucose

Question 1

What is homeostasis ?

Answer 1

Maintaining a constant internal environment eg

Blood glucose - glucose levels
Osmoregulation.- water content
Thermoregulation - temperature

Question 2

What things increase and decrease glucose levels?

Answer 2

Eating foods
Normal metabolism removes glucose

Exercise remove glucose

Excess glucose is in glycogen in liver

When they are full it is stored as fat

Changes are controlled by the pancreas

Question 3

What happens if blood glucose is too high?

Answer 3

Pancreas secretes insulin

Glucose moves into liver from blood

Insulin makes liver turn glucose glycogen

Question 4

What happens if the blood glucose level is too low?

Answer 4

Then glucagon is secreted.

Glucose is released into blood by liver

Glucagon makes liver turn glycogen into glucose