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biology coursework idearing

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Introduction

Coursework Animal Behaviour * The effect of temperature on the speed of mealworms (or woodlice) * The effect of light intensity on the distance travelled by maggots (uses fluorescent paint and a dark room) * The effect of light / dark or dry / humid conditions on the movement of woodlice (could be numbers in a choice chamber or speed of movement) Animal Physiology * The effect of caffeine / coca cola / alcohol on the heart rate of water fleas Daphnia (video microscope really makes this easy) Ecology (school grounds etc.) * The effect of aspect on leaf area (e.g. beech leaves from either side of a hedge, bramble, bindweed all work well) * The effect of acid rain on snail shells (use empty snail shells from grounds and dil acids, weigh before and after) * The effect of pollution on lichen growth (choose 2 sites: one polluted e.g. city centre, staff car park --- one clean --- control aspect and substrate e.g. choose south facing limestone walls --- measure lichen areas with quadrats) ...read more.

Middle

* The effect of bead size / enzyme concentration / substrate concentration / rate of flow on the reaction rate of an immobilised enzyme (see above) * The effect of calcium chloride concentration on the clotting of milk by the enzyme Rennilase or equivalent Human Physiology * The effect of smoking on lung capacity (would need some honest volunteers --- smokers needed, but not allowing them to smoke for the experiment) * The effect of drinking (e.g. coca cola or equivalent) on reaction times * Is there a correlation between height and hand span / finger length / foot size, or any other body part * The effect of different types of items on memory (use sequences of letters, numbers, words) * The effect of aural vs. visual memories * The effect of distractions (whatever you like!) on the ability to memorise sequences Microbiology * The effect of different brands of toothpaste / mouthwashes / antiseptics / disinfectants on bacterial growth * The effect of different yeast strains on rate of fermentation * The effect of different substrates e.g. ...read more.

Conclusion

use the SAPS practical with algal balls --- Scenedesmus --- great fun, but you need to grow enough alga --- check the SAPS website for details * The effect of temperature on how much colour leaks out of beetroot * The effect of upper vs. lower surface on the number of stomata (can be microscope investigation or simply put leaves into very hot water and count bubbles --- comparison of light vs. shade * The effect of freezing on germination success * The effect of allelopathy * The effect of heavy metal pollution on germination / growth Plant Physiology * The effect of light intensity on photosynthesis) use the SAPS practical with algal balls --- Scenedesmus --- great fun, but you need to grow enough alga --- check the SAPS website for details * The effect of temperature on how much colour leaks out of beetroot * The effect of upper vs. lower surface on the number of stomata (can be microscope investigation or simply put leaves into very hot water and count bubbles --- comparison of light vs. shade * The effect of freezing on germination success * The effect of allelopathy * The effect of heavy metal pollution on germination / growth ...read more.

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