homeostasis of glucose levels (nutrition)

Question 1

what is homeostasis control of blood glucose levels

Answer 1

-maintenance of a constant environment
-the body maintains homeostasis by a process called negative feedback
-when an abnormal level is detected, a corrective active is switched on
-negative feedback occurs when the normal level is once again, the corrective action is switched off

Question 2

what is the amount of glucose in blood (blood sugar level) if it’s too high

Answer 2

-too high = hyperglycaemia

Question 3

what is the amount of glucose in blood (blood sugar level) if it’s too low

Answer 3

-too low: hypoglycaemia

Question 4

what can hyperglycaemia cause

Answer 4

-kidney and heart failure

Question 5

what hypoglycaemia cause

Answer 5

-headaches, shakiness, weakness, seizures and even death

Question 6

from what cells in the pancreas is two hormones released

Answer 6

-islets of langerhans

Question 7

what is insulin

Answer 7

-decreases blood glucose levels
-released from pancreas

Question 8

what is gluCAGON

Answer 8

-increases blood glucose levels
-released from pancreas (iol)

Question 9

what does insulin cause

Answer 9

-causes the cells of the body (liver and muscle) to take in MORE glucose from blood stream
-produced by beta cells of iol

Question 10

how is excess glucose stored

Answer 10

-as glygoGEN

Question 11

what does glucagon cause

Answer 11

-causes the cells storing glycogen to break down carbs and release glucose into blood stream
-released by ALPHA cells of iol