Diffusion and Osmosis

• What is the definition of diffusion?

  Diffusion is the movement of particles from an area of high concentration to an area of low concentration.
• What drives the process of diffusion?

  Diffusion is driven by the concentration gradient.
• In which states of matter does diffusion occur?

  Diffusion occurs in gases, liquids, and solids.
• What is meant by passive transport in the context of diffusion?

  Passive transport means that no energy input is required for the process to occur.
• How does the example of spraying perfume illustrate diffusion?

  When perfume is sprayed, the scent gradually spreads throughout the entire space due to diffusion.
• What factors can affect the rate of diffusion?

  Factors affecting diffusion include temperature, concentration gradient, particle size, and distance.
• How does temperature influence the rate of diffusion?

  Higher temperatures increase particle movement, which speeds up diffusion.
• What happens to the diffusion rate when the concentration gradient is steeper?

  A steeper concentration gradient leads to faster diffusion.
• How does particle size affect diffusion rates?

  Smaller particles generally diffuse faster than larger ones.
• Why does diffusion occur more quickly over shorter distances?

  Diffusion occurs more quickly over shorter distances because particles have less distance to travel.
• What is the definition of osmosis?

  Osmosis is the movement of water molecules across a semipermeable membrane from an area of high water concentration to an area of low water concentration.
• What type of membrane is required for osmosis to occur?

  Osmosis requires a semipermeable membrane.
• What is the direction of water movement in osmosis?

  Water moves from high water concentration to low water concentration.
• How does osmosis relate to passive transport?

  Osmosis is a form of passive transport, meaning it does not require energy.
• What happens to a plant cell placed in pure water due to osmosis?

  Water moves into the cell, causing it to become turgid.
• How do osmosis and diffusion compare in terms of the particles involved?

  Diffusion involves any particles, while osmosis specifically involves only water molecules.
• What is a key difference between osmosis and diffusion regarding membrane requirements?

  Diffusion can occur with or without a membrane, while osmosis requires a semipermeable membrane.
• What is the broader concept that encompasses osmosis?

  Diffusion is the broader concept that encompasses osmosis.
• What are some real-world examples of diffusion?

  Examples of diffusion include breathing, cooking smells, and tea brewing.
• What are some real-world examples of osmosis?

  Examples of osmosis include plant roots absorbing water, kidney dialysis, and food preservation through salting.
• How does osmosis contribute to maintaining cell turgidity in plants?

  Osmosis allows water to enter plant cells, making them turgid and firm due to the rigid cell wall.
• Which scenario is an example of osmosis rather than general diffusion?

  Rehydrating dried fruit in water is an example of osmosis.
• What is the relationship between osmosis and diffusion in biological functions?

  Both processes are crucial for nutrient absorption and maintaining cell structure in living organisms.