Cell/membrane/membrane transport/substances that diffuse through membrane

POINT!

O2, CO2, cholesterol etc can diffuse through membrane

narrated animation

Substances such as oxygen, carbon dioxide and cholesterol, can diffuse through the cell membrane. But, substances such as sodium ion, potassium ion, water and glucose can NOT diffuse through the membrane.

Challenge Quiz

1.

O₂ can diffuse can not diffuse  正解! through cell membrane.

2.

CO₂ can diffuse can not diffuse  正解! through cell membrane.

3.

Cholesterol can diffuse can not diffuse  正解! through cell membrane.

4.

Protein can diffuse can not diffuse  正解! through cell membrane.

5.

Sodium (Na⁺) can diffuse can not diffuse  正解! through cell membrane.

6.

Potassium (K⁺) can diffuse can not diffuse  正解! through cell membrane.

7.

Glucose can diffuse can not diffuse  正解! through cell membrane.