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The key skill you need to display is an in-depth knowledge of the text. This means you should be able to back up every point you make with at least one quote from the text, and you should use AO2, 3 &...

Water moves from the roots to the leaves through tissue called the xylem, in a process called transpiration. As water evaporates out of the leaf, more water is 'pulled upwards' to replace what has been lo...

The enzyme maltose will always fold into in a tertiary structure, which results in the active site being in a specific shape that only the substrate maltase can bind to. This is often illustrated using th...

The subjunctive is notoriously difficult to master but its use does tend to follow particular rules. At this level it is important to know and have a good understanding of the folloiwing conditions which ...

Na has more electron shells/ energy levels than Li. This means that Na has a greater atomic radius than Li. Therefore, the outer shell electron in Na experiences a weaker nuclear attraction than in Li. Le...