BIOLOGY UNIT 3a GCSE

Osmosis

Substances move by

what does stomata allow to diffuse through

the size of the stomata are controlled by

where are the lungs

Ventiliation

gas exchange happens

job of lungs

alveoli

Alveoli have :

villi

villi have

root hairs are specialised for

root hair take in minerals by using :

Active transport NEEDS:

Phloem tubes

Xylem tubes

transpiration

Arteries

Capillaries

Veins

RED blood cells

WHITE blood cells

Platelets

plasma

stents

Homeostasis

homeostasis controls

thermoregulatory centre

When your TOO HOT

When your TOO COLD

Kidneys 3 main roles :

nephrons

what controls blood glucose level

type 1 diabetes is caused by

insulin reduces