Diffusion is the movement of particles down the concentration gradient.
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What type of particles can diffuse?
Small particles (e.g. atoms, molecules, ions).
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What is "moving down the (diffusion) concentration gradient"?
Moving from a high concentration to a low concentration.
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What is osmosis?
Osmosis is the diffusion of water particles only (through a partially permeable membrane).
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What is "moving down the (osmosis) concentration gradient"?
Moving from a dilute solution to a stronger solution. (The dilute/weaker solution has a higher concentration as there is more water and the stronger solution has less water.)
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What is active transport?
Active transport is the movement of cells against the concentration gradient.
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Does diffusion and osmosis use energy from respiration?
Diffusion and osmosis do not use energy released from respiration - they are passive transport.
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Does active transport use energy from respiration?
Active transport uses energy released from respiration.
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Other cards in this set
Card 2
Front
What type of particles can diffuse?
Back
Small particles (e.g. atoms, molecules, ions).
Card 3
Front
What is "moving down the (diffusion) concentration gradient"?
Back
Card 4
Front
What is osmosis?
Back
Card 5
Front
What is "moving down the (osmosis) concentration gradient"?
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