An investigation to establish how concentration of substrate effects the rate of anaerobic respiration of yeast.

The first 200 words of this essay...

Simon May 13I

Biology Coursework

An investigation to establish how concentration

of substrate effects the rate of anaerobic respiration of yeast

Aim

The aim of this investigation is to produce data from which an accurate evaluation can be formed which shall show in quantitative terms how the anaerobic respiration of yeast occurs when the substrate concentration alters.

Preliminary Research

From my preliminary investigations I was able to deduct which of numerous methods stood the best chance of offering success in terms of giving quantitative data that was both accurate and reliable. In addition to this I was able to investigate which solutions offered the most activity and which range was most appropriate to the investigation. From these, investigations I have concluded the following:

1. Methods 1 and 2 outlined in the planning section offered the best chance of accurate, reliable, safe and easily reproduced data.

2. The substrate to be used in terms of producing accurate data does not really matter in terms of whether orange Juice or Glucose is used. However, Orange Juice offers the best qualitative data, whereas, the absence of vitamins means that glucose substrate results offer better