English National Curriculum - Science
Mission Objectives
Define active transport and explain how it differs from diffusion and osmosis
Describe real-life examples of active transport in plants and animals
Compare the three transport processes using key features (direction, concentration gradient, energy)
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Words and meanings to learn
active transport
The movement of particles against a concentration gradient, requiring energy.
diffusion
The net movement of particles from an area of high concentration to an area of low concentration, down the concentration gradient. It is a passive process (no extra energy needed).
osmosis
The diffusion of water from an area of higher water concentration to an area of lower water concentration, through a partially permeable membrane.
concentration gradient
the difference in concentration between two areas. The steeper the gradient, the faster the rate of diffusion or osmosis.
mineral ions
a charged particle (ion) of a mineral, such as nitrate, magnesium, or phosphate, that plants absorb from the soil and use for healthy growth
Samantha is an accomplished science educator with over 15 years of leadership experience and a strong background in scientific analysis. She has a proven record of leading departments effectively, improving practice, and working collaboratively with stakeholders.
In her current work, Samantha embeds evidence-informed pedagogical principles such as retrieval practice, clear modelling, and effective sequencing to support high-quality curriculum design and professional development. She draws on assessment insight and common misconceptions to help teachers secure strong student understanding.
She is a former Head of Chemistry and Sixth Form Tutor at Ilkley Grammar School, with extensive Key Stage 4 and 5 experience, and an AQA examiner, giving her valuable insight into assessment standards and exam requirements.
In her spare time, Samantha enjoys playing the accordion with her local orchestra and has recently taken up cricket.
PowerPoint slides or transport process comparison diagrams
Table completion worksheet (diffusion vs osmosis vs active transport)
Video clip or animation of active transport (root hair cells or gut cells)
Coloured arrows for particle model diagrams. Student can draw these on.
Challenge and stretch questions or Venn diagram comparison
Expert film
Mission assignment film
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