Some substances move 4.1.3.3 Define the term 1 Recap diffusion and osmosis. Investigate the effect of ‘active across cell membranes cont. transport’. Compare them with active oxygen availability on via active transport. transport. Produce a the growth of plants. Describe where active Active transport involves comparison table. Observe results in later the movement of a transport occurs in humans lessons. dissolved substance Oxygen: gas jars and plants and what is What does the name 'active from a region where it is with lids, glass tubes, transported. transport' tell you about the less concentrated to a fresh and boiled process? Explain why active region where it is more water to make concentrated. This transport requires energy. Pupils think of alternative, mineral ion requires energy from descriptive names for diffusion Explain how active solution(s), black respiration. and osmosis. transport enables to paper. absorb ions from very dilute Introduce active transport as Active transport allows solutions. absorption against the mineral ions to be concentration gradient. absorbed into root Explain the relationship Discuss when this be hairs from very dilute between active transport useful. solutions in the soil. It and oxygen supply and also allows sugar numbers of mitochondria in Pupils link the particle model molecules to be cells. and energy-transfer model to absorbed from lower explain active transport. concentrations in the gut Pupils plan a 60 second into the blood with a presentation comparing and higher sugar contrasting diffusion, osmosis concentration. and active transport. Research where active transport occurs in plants and
4.1.3.3 cont. Some substances move across cell membranes via active transport. Active transport involves the movement of a dissolved substance from a region where it is less concentrated to a region where it is more concentrated. This requires energy from respiration. Active transport allows mineral ions to be absorbed into root hairs from very dilute solutions in the soil. It also allows sugar molecules to be absorbed from lower concentrations in the gut into the blood with a higher sugar concentration. Define the term ‘active transport’. Describe where active transport occurs in humans and plants and what is transported. Explain why active transport requires energy. Explain how active transport enables to absorb ions from very dilute solutions. Explain the relationship between active transport and oxygen supply and numbers of mitochondria in cells. 1 Recap diffusion and osmosis. Compare them with active transport. Produce a comparison table. What does the name 'active transport' tell you about the process? Pupils think of alternative, descriptive names for diffusion and osmosis. Introduce active transport as absorption against the concentration gradient. Discuss when this be useful. Pupils link the particle model and energy-transfer model to explain active transport. Pupils plan a 60 second presentation comparing and contrasting diffusion, osmosis and active transport. Research where active transport occurs in plants and Investigate the effect of oxygen availability on the growth of plants. Observe results in later lessons. Oxygen: gas jars with lids, glass tubes, fresh and boiled water to make mineral ion solution(s), black paper.
AQA-8465-SOW-BBLOCK.DOCX