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Powerpoint Description:

This slideshow covers the entire B2 unit, including: diffusion, osmosis, active transport, active transport in humans and plants, comparing osmosis, active transport and diffusion, cell growth, the stages of mitosis, facts about mitosis, cell differentiation, specialised cells, stem cells, embryo stem cells compared to adult stem cells, surface area to volume ratios, single celled organisms and their surface area to volume ratio, diffusion in the human body, diffusion in lungs and villi and adaptations to help diffusion, the circulatory system, double circulation, the heart and how it works, blood vessels, the different parts of blood, root hair cells, transpiration and translocation, factors affecting the rate of transpiration, xylem and phloem, guard cells and stomata, controlling water loss, measuring the rate of transpiration using a potometer.

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