AQA Biology GCSE (5.1 - Homeostasis)

Question 1

Homeostasis

Answer 1

The maintenance of a constant internal environment in order to maintain optimum conditions of enzyme and cellular function

Question 2

Examples of conditions maintained by homeostasis in the body

Answer 2

Blood glucose concentration
Body temperature
Water levels

Question 3

Two types of responses used in body control systems

Answer 3

Nervous and chemical

Question 4

Three components that all control systems have

Answer 4

Receptors
Coordination centres
Effectors

Question 5

Function of a receptor

Answer 5

Detect changes in the environment (stimuli)

Question 6

Function of a coordination centre

Answer 6

Obtain and process information from receptors

Question 7

Function of an effector

Answer 7

(muscles or glands) bring about responses to stimuli