2.2: Control & Communication (Hormonal)

Question 1

What does the endocrine system produce?

Answer 1

Hormones

Question 2

What are hormones?

Answer 2

Chemical messengers made from protein

Question 3

What is a target tissue?

Answer 3

Cells with complementary receptor proteins for specific hormones

Question 4

How do hormones travel to the target tissue?

Answer 4

The target tissues have cells with complementary receptor proteins. The receptors are specific for hormones, so only that tissue will be affected

Question 5

What hormones control glucose levels in the blood?

Answer 5

Insulin & Glucagon

Question 6

What happens when there is an increase in glucose concentration?

4

Answer 6

1. Pancreas makes insulin and releases it into the bloodstream
2. Insulin targets the liver tissue
3. Liver converts glucose into glycocogen
4. Glucose levels return to normal

Question 7

What happens when there is an decrease in glucose concentration?

4

Answer 7

1. Pancreas makes glucagon and releases it into the bloodstream
2. Glucagon targets the liver tissue
3. The liver breaks down glycogen to glucose
4. Glucose levels return to normal