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Distance is a scalar which means it only has a length- it is the length of distance travelled along a pathDisplacement is a vector which means it has a direction and a length and is the total change in po...

Solutes (e.g sucrose) are transported in the phloem from source to sink. Sucrose is made at the leaves in the plant, this is actively transported into th...

You must manipulate the fractions so that they both have the same denominator. To do this, multiply the first fraction by 3 and the second by 4 so that they both have the denominator 12. The problem can t...

Source analysis is a key skill you will need to get to grips with for your GCSE exams. Before I break down how you should approach your source analysis in a step by step method, I want to emphasise that y...

The purpose of glucose and sodium being transported across the epithelial cells of the small intestine is in order to move glucose across the cell against its concentration gradient. Because these two sub...