Homeostasis and Response

Question 1

Define ‘homeostasis’.

Answer 1

Maintainence of a constant internal environment relatively stable at optimum conditions through negative feedback

Question 2

Name three key internal conditions that need to be controlled through homeostasis.

Answer 2

Temperature; Water levels; Blood glucose level

Question 3

Name the cell type that detects stimuli in the internal or external environment.

Answer 3

Receptor

Question 4

Name the component in the nervous system that processes the stimuli information.

Answer 4

Coordination centre

Question 5

Name the component in the nervous system that bring about responses to stimuli.

Answer 5

Effectors

Question 6

State the function of a neurone.

Answer 6

Transmit electrical impulses

Question 7

Name one factor that may affect human reaction time.

Answer 7

Energy or sugary drinks/Practise beforehand/drugs etc.