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Growing Micro-organisms

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  • Essay length: 2211 words
  • Submitted: 20/01/2006
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AS and A Level Molecules & Cells

The first 200 words of this essay...

Growing Microorganisms

Introduction/ Aim:

Yeast are a tiny form of fungi or plant-like microorganism (visible only under a microscope) that exist in or on all living matter i.e. water, soil, plants, air, etc. The yeast life cycle, like that of all higher organisms, includes a step known as meiosis, where pairs of chromosomes separate to give new combinations of genetic traits. People in today's society use yeast for controlled fermentation of food and drink; it is also used for baking. In this experiment I will be attempting to measure the growth of a yeast population and in doing this I will have to carry out certain methods to succeed. Below is a diagram on a yeast cells with arrows showing the parts of the yeast cell:

Equipment/ Apparatus:

* 250cm³ Beaker

* Measuring cylinder to measure 50cm³

* A Cuvette

* A Colorimeter

* Sticky Labels

* A Suspension of Yeast

* Glucose Solution

* Pipette

Risk Assessment:

This experiment is not that much dangerous so not much precaution is really needed, there are not dangerous chemicals, no hazardous gases etc. Below I

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