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1. They contain photosynthetic pigments to absorb light i.e. chlorophyll a2. They have a large surface area for light absorption3. They contain electron carriers / ATP synthase

The mitochondria is an organelle in the cell which is used as a "power station" to provide the cell with energy in the form of ATP. It uses substrates like glucose, which is broken down in the c...

Biology exams rely heavily on recollection and your knowledge of key facts and processes. If you have memorised these and have a good understanding of them, questions are often just a case of manipulating...

Osmosis is the movement of water across a semi-permeable membrane, down the concentration gradient. This means that if there is more water on one side of a membrane, it will move to the other side until b...

Questions about speciation are at their core based on Darwin's theory of evolution. As a result, we must recall GCSE knowledge of natural selection to combine with the new concepts in speciation introduce...