Search over 10,000 free study notes

Covalent compounds contain atoms that share electrons - for example, hydrogen chloride (HCl) share electrons (one from each atom), in order to achieve a full set of 8 electrons in their outer ...

a) Proteins, which are highly-folded poplypeptides, are broken down into shorter polypeptides, and then into amino acids, by protease enzymes.

b) Fats, or lipids, are broken down by enzym...

Enzymes are biological catalysts - they 'speed up' biological reactions - essentially increasing the rate at which they occur.

Pepsin is an enzyme that catalyses the digestion of proteins...

The answer would be 5/12. 
This is because a sum greater than 7 appears 15 times out of a given sample space of 36. Hence the probability would be 15/36 = 5/12

Pythagorus' Theorum enables us to calculate the length of any side of a right angled triangle provided we know the other two lengths. This is done by substituting in the appropriate values into the equ...