hormones

Question 1

what are hormones

Answer 1

hormones are chemical messengers.

Question 2

how are hormones produced

Answer 2

they are produced by endocrine glands and released into the blood.

Question 3

what do hormones do

Answer 3

they travel around the body in the blood until they reach their target organs. the hormone then causes the target organ to respond.

Question 4

what is blood glucose regulation

Answer 4

it is another type of homeostasis

Question 5

what is blood glucose regulation controlled by

Answer 5

insulin and glucagon

Question 6

what happens when blood glucose concentration rises

Answer 6

1. pancreas detects rise in blood glucose concentration
2. pancreas increases secretion of insulin and decreases secretion of glucagon
3. insulin causes muscle and liver cells to remove glucose from blood and store it as glycogen
4. blood glucose concentration falls

Question 7

what happens when blood glucose concentration falls

Answer 7

1. pancreas detects fall in blood glucose concentration.
2. pancreas decreases secretion of insulin and increases secretion of glucagon
3. glucagon causes liver cells to convert glycogen to glucose and release it into the blood
4. blood glucose concentration rises