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Firsty, read the question carefully, making sure to underline any key points so that you understand exactly what the question is asking. Look at the marks awarded for the question, this should give you so...

The cell membrane is a semi-permeable structure that surrounds a cell and it is present in plant, animal and bacteria cells. It is semi-permeable because some substances such as glucose and water can pass...

Photosynthesis is an endothermic reaction- energy is added (endo-in, exo-exit)
H₂O + CO₂ ==> C₆H₁₂O₆ + O₂Photosynthesis is a proce...

While it is certainly important to familiarise yourself with the mark scheme and all the relevant materials, I am very much of the opinion that all knowledge is useful knowledge. Make sure your answers ma...

The words 'depuis' and 'pendant' are both used to express the duration of an event, meaning that it is easy for English speakers to mix them up and use them incorrectly. However, there is an important dis...