Homeostasis

Question 1

Why do conditions inside your body need to be kept steady

Your … need the right … in order to f… properly

Answer 1

Your cells need the right conditions in order to function properly

Question 2

What is homeostasis

The r… of c… inside your body to m… a stable … environment in response to both … and external changes

Answer 2

The regulation of conditions inside your body to maintain a stable internal environment in response to both internal and external changes

Question 3

What are your automatic control systems made up of to maintain a steady condition

Answer 3

Receptors, coordination centre (eg the brain, spinal cord), and effectors

Question 4

How does our automatic control system keep our internal environment stable

Answer 4

Using negative feedback

Question 5

What is negative feedback

Answer 5

When the level of something becomes too high or too low and the body uses negative feedback to bring the levels back to normal

Question 6

Order of negative feedback when a level is too high

1. … detects a … with a level too …
2. The … centre receives and … the info organising a …
3. E… organises a response cou… the change and the level …

Answer 6

1. Receptor detects a stimulus with a level too high
2. The coordination centre receives and processes the info organising a response
3. Effector organises a response counteracting the change and the level decreases