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On the periodic table, Magnesium has the symbol ₁₂Mg²⁴, where 24 is the mass number and 12 is the atomic number. The atomic number is the number of protons found inside an atom, w...

An enzyme is a type of protein that catalyses reactions that occur in the body. In many cases they are essential in order to allow reactions to occur under physiological conditions. There are many differe...

DNA is used to code proteins. This requires two steps: transcription and translation.Transcription is the conversion of double stranded DNA into a single stranded mRNA molecule. DNA nucleotides bind to th...

For many reasons cell division can become unregulated. This leads to the formation of a mass of cells called a tumour which cannot perform their normal function – they are said to be undifferentiated. In ...

The most important thing to remember about rearranging equations is that what you do to one side, you have to do to the other side as well to balance it. In the question above, to get rid of the 2 on t...