6.5.10

Explain the control of body temperature, including the transfer of heat in blood, and the roles of the hypothalamus, sweat glands, skin arterioles and shivering.

6.5.11

Explain the control of blood glucose concentration, including the roles of glucagon, insulin and α and β cells in the pancreatic islets.

6.5.12

Distinguish between type I and type II diabetes.

6.5.7

State that the endocrine system consists of glands that release hormones that are transported in the blood.

6.5.8

State that homeostasis involves maintaining the internal environment between limits, including blood pH, carbon dioxide concentration, blood glucose concentration, body temperature and water balance.

6.5.9

Explain that homeostasis involves monitoring levels of variables and correcting changes in levels by negative feedback mechanisms.

H.1.1

State that hormones are chemical messengers secreted by endocrine glands into the blood and transported to specific target cells.

H.1.2

State that hormones can be steroids, proteins and tyrosine derivatives, with one example of each.

H.1.3

Distinguish between the mode of action of steroid hormones and protein hormones.

H.1.4

Outline the relationship between the hypothalamus and the pituitary gland.