Cell Transport Lesson

​Cell Transport

Cell transport is movement of materials across cell membranes.

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Two Types:​

1. Passive transport

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2. Active transport

​The movement of substances across the cell membrane without using energy from the cell.

​Examples:

1. diffusion

2. facilitated diffusion

3. osmosis.

​​

​(does not require energy​)

​​Passive Transport

​Diffusion is the movement of particles from a area of higher concentration to an area of lower concentration.

​beginning

​after 5 mins

Examples of diffusion in everyday life:​​

1. The smell of perfumes or incense sticks.

2. Opening the soda or cold drinks bottle and the CO₂ diffuses in the air.

3. Dipping the tea bags in hot water will diffuse the tea in hot water.

4. Small dust particles or smoke diffuse into the air and cause air pollution.

5. Breathing and taking oxygen into the body and diffuses in our blood.