Transport in Cells (OCR GCSE Biology A (Gateway Science Suite)): Flashcards
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13 cards from this deck
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Practise the cards
13 cards from this deck
Concentration gradient
Concentration gradient
Difference in concentration between two areas
Effect of steeper concentration gradient
Effect of steeper concentration gradient
Faster diffusion rate
Effect of higher temperature on diffusion
Effect of higher temperature on diffusion
Increases diffusion rate
How temperature affects diffusion
How temperature affects diffusion
Changes kinetic energy of particles
Effect of larger surface area on diffusion
Effect of larger surface area on diffusion
Increases diffusion rate
Examples of large surface areas for diffusion
Examples of large surface areas for diffusion
Alveoli in lungs, villi in small intestine
Effect of shorter distance on diffusion
Effect of shorter distance on diffusion
Faster diffusion
Effect of molecule size on diffusion
Effect of molecule size on diffusion
Smaller molecules diffuse faster
Small molecules that diffuse fast
Small molecules that diffuse fast
Oxygen and carbon dioxide
Molecules that diffuse easier through membranes
Molecules that diffuse easier through membranes
Nonpolar molecules (easier than polar molecules)
Factors for rapid O2 diffusion in lungs
Factors for rapid O2 diffusion in lungs
Large surface area, steep gradient, short distance
Villi adaptations for diffusion
Villi adaptations for diffusion
Large surface area, thin walls
Waste removed from cells by diffusion
Waste removed from cells by diffusion
Carbon dioxide