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Magnesium 2+ ions bind to (they don’t REALLY bind) and stabilize ATP molecules. The ATP (also ADP and AMP) contain highly reactive phosphates (the energy is stored in the chemical bonds between the phosph...

Cells need to eat and drink, just like me and you. The process where cells ingest other cells or foreign material is called PHAGOCYTOSIS. The process itself is very complicated and you don’t need to know ...

The extract provided by AQA should directly guide and lead your response. Ensure you thoroughly read the extract and understand all content addressed. Re-read the extract a second time, highlighting key p...

Economics is a discipline which requires more than just knowledge and understanding, but also requires sound evaluation skills. A Level Economics exams will often include essay questions with command word...

It is important to familiarise yourself with the mark scheme for the written paper, and for each individual question within as they may require different skills. Read the question carefully, taking in any...