Topic 5- Homeostasis

Question 1

What is homeostasis

Answer 1

Homeostasis is the maintenance of a constant internal environment in order to maintain optimum conditions for enzyme and cellular function

Question 1

Give examples of conditions maintained by homeostasis in the body

Answer 1

-Blood glucose concentration
-Body temperature
-Water levels
-Water levels

Question 2

What two types of response are used in body control systems

Answer 2

Nervous and chemical

Question 3

What three components do all control systems have?

Answer 3

-Receptors
-Co-ordination centres
-Effectors

Question 4

What is the function of a receptor

Answer 4

Receptors detect changes in the environment (stimuli)

Question 5

What is the function of a coordination centre

Answer 5

Coordination centres obtain and process information from receptors

Question 6

What is the function of an effector

Answer 6

Effectors (muscle or glands) bring about responses to stimuli