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Biology

GCSE · AQA

QuestionsFlashcards

Communicable Diseases
Monoclonal Antibodies
- Producing Monoclonal Antibodies
  6
- Uses of Monoclonal Antibodies
  7
Plant Disease
- Detection and Identification of Plant Diseases
  6
- Plant Defence Responses
  6

Factors that Affect Diffusion Flashcards

All 6 cards in this deck

Name the three factors that affect the rate of diffusion.: The concentration gradient, the temperature, and the surface area of the membrane.
How does a steeper concentration gradient affect the rate of diffusion?: The rate of diffusion increases.
How does increasing the temperature affect the rate of diffusion?: The rate increases, because particles have more kinetic energy and move faster.
How does the surface area of a membrane affect the rate of diffusion across it?: The larger the surface area, the faster the rate of diffusion.
True or false? Particles stop moving across a membrane once the concentrations on both sides are equal.: False. Particles still move both ways, but there is no net movement.
How does a shorter diffusion distance (thinner membrane) affect the rate of diffusion?: The rate of diffusion increases.