To write a good enzyme coursework you will need to investigate the essence of the enzymatic reactions in general. You may be sure that if you want to become a well-known biologist and receive the Nobel Award in Biology, enzyme coursework writing is the first step to it.
 
Thus, even if it is a biology coursework, namely an enzyme coursework, it does not mean that you are supposed to spend all your time at the laboratory performing some experiments.
 
You may carry out a certain experiment, this is definitely desirable. Apart from the experiment you have to present some theoretical findings as for the subject of your enzyme coursework. So, you might need to visit libraries or resort to other coursework resources when writing your enzyme coursework.
 
You may surf the global net to find any of the possible sources for your enzyme courseworks. You are also welcome to look through biology journals, such as Emagazine, New scientist, National geographic, etc. or articles. You may find a lot of interesting and useful information for your enzyme coursework there. What is more important is that all information presented in journals is reliable and up-to-date. Do not hesitate to make use of it.
 
You should not underestimate the help of your supervisor. Any time you have some difficulties with your enzyme courseworks, do not hesitate to ask for help (especially if you face some complications with performing your experiment).
 
If you want to impress your supervisor, you may give a huge list of references, it will mean that you have worked out a lot of materials while writing your enzyme coursework and will show the supervisor that you have taken this task seriously. This will make a good deal for you. Just, please, do not make up these sources, your supervisor is sure to notice it.