Biology - Transport in cells

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質問 English 答え English
What is diffusion?
学び始める
Net movement of particles from an area of high concentration to an area of low concentration
Is diffusion active or passive?
学び始める
Passive
Which 3 factors affect the rate of diffusion?
学び始める
Concentration gradient, temperature, surface area
What is osmosis?
学び始める
Net movement of water molecules through a partially permeable membrane from a dilute solution to a concentrated solution
What type of membrane is needed for osmosis?
学び始める
A partially permeable membrane
What is active transport?
学び始める
Movement of particles from a low concentration to a high concentration using energy from respiration
Why do root hair cells use active transport?
学び始める
To absorb mineral ions from dilute soil

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