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Eukaryotic and Prokaryotic Cells
A high power image of bacterial cells. Comparing Eukaryotic and Prokaryotic Cells In this post Jayne explains how to compare and contrast Eukaryotic and Prokaryotic cells. At A Level there is often a question asking you to give the differences between the two types of ...
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Biology revision aids
Explaining Biology Clearly - you tube.  Jayne now has a youtube channel where she is sharing her "no frills" explanations of the major biological ideas, concepts and knowledge to be found in the current A level courses.  These are simp...
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Not enough carbon dioxide!?
The Odessa port plant in the Ukraine produces ammonia and other nitrogenous fertilisers.   Scientists agree that too much carbon dioxide is still being released into the atmosphere by human activity. Yet in this recent article, the BBC report on how a shortage of carbon dioxide is causing concern for meat producers and ...
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Good carbs / good carbs ?
Carbohydrates in one form or another are found in in very many foods. Carbohydrates or "Carbs" are not only essential components of a balanced diet, providing energy and fibre, but can also provide the raw materials to produce useful, biodegradable "eco"polymers .  Jayne explains.. Th...
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Fat for fuel .
Biodiesel: used cooking oils and fats can be used as an alternative to fossil fuels to power vehicles.  In this post, Jayne gives examples of different types of lipids and explains what they are composed of and their corresponding functions in the human body. There are different types of Lipid found in living organisms. Triglycerides, phospholipids and...
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An image of a virus particle Viruses cause diseases such as the common cold, COVID-19, mumps, measles, HIV and Polio to name but a few. It is common at A Level to be asked why viruses are classed as 'non-living' or why antibiotics are not used when someone is infe...
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