Biology Unit 3

Biology unit 3 revision tools

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  • Created by: Anna
  • Created on: 17-05-11 15:38

Diffusion

Diffusion 

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Diffusion

The passive movement of particles from an area of high concentration to an area of low concentration (Down a concentration gradient)

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Osmosis

Osmosis

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Osmosis

The passive movement of water through a partially permeable membrane from an area of high concentration to an area of low concentration until equillibrium is reached

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Active transport

Active Transport

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Active transport

The movement of particles using energy. This can be against a concentration gradient.

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Body

Nasal passage and mouth

Trachea (windpipe)

Bronchi (left and right bronchus)

Bronchioles

Alveoli

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