Diffusion (Leaving Cert Biology): Flashcards
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Define diffusion
Define diffusion
Movement of substances from high to low concentration
Type of process: diffusion
Type of process: diffusion
Passive process
Energy requirement for diffusion
Energy requirement for diffusion
Does not require energy
Direction of diffusion movement
Direction of diffusion movement
From high concentration to low concentration
Concentration gradient in diffusion
Concentration gradient in diffusion
Diffusion occurs down gradient (high to low)
Oxygen diffusion: lungs in respiration
Oxygen diffusion: lungs in respiration
Oxygen diffuses from lungs into bloodstream
Oxygen diffusion: blood in respiration
Oxygen diffusion: blood in respiration
Oxygen diffuses from blood into cells
Carbon dioxide in photosynthesis
Carbon dioxide in photosynthesis
CO₂ diffuses into plant cells for photosynthesis
Urea in waste removal
Urea in waste removal
Diffuses from cells into bloodstream