Biology - Transport in cells

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问题 English 答案 English
What is diffusion?
开始学习
Net movement of particles from an area of high concentration to an area of low concentration
Is diffusion active or passive?
开始学习
Passive
Which 3 factors affect the rate of diffusion?
开始学习
Concentration gradient, temperature, surface area
What is osmosis?
开始学习
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?
开始学习
A partially permeable membrane
What is active transport?
开始学习
Movement of particles from a low concentration to a high concentration using energy from respiration
Why do root hair cells use active transport?
开始学习
To absorb mineral ions from dilute soil

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