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Transport across membranes

Cellular respiration

ATP production

Metabolism of proteins

Metabolism of fatty acids

Waste elimination

Transport across membranes

Exchange of substances with the external environment

The plasma membrane

Diffusion across the plasma membrane

Plasma membrane structure

Diffusion

The concentrations of the dissolved substance

The temperature of the solution

The size of the particles

Diffusion

Osmosis

The direction and rate of osmosis

Osmosis

Differences between diffusion and osmosis

Osmosis

Osmosis

Diffusion

Diffusion

Diffusion and osmosis – passive transport

Osmosis in animal cells

Osmosis in erythrocytes

Erythrocyte in 3% NaCl solution

Erythrocyte in 0.3% NaCl

Physiological sodium chloride solution

Transport across membranes

Osmosis in plant cells

Osmosis in plant cells

Active transport

Active and passive transport