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An experiment to investigate the rate of anaerobic respiration of yeast in various respiratory substrates
- Essay length: 8932 words
- Submitted: 13/01/2005
The first 200 words of this essay...
"An experiment to investigate the rate of anaerobic respiration of yeast in various respiratory substrates."
In this experiment, the independent variable is various different respiratory substrates being used (glucose, sucrose, maltose, lactose) and the dependent variable is the rate of respiration (measured by movement of manometer fluid which moves in relation to the amount of carbon dioxide released).
Top pan balance
20ml & 1ml syringe
My investigation will involve analysing how yeast respires in various different substrates: Glucose, Lactose, Maltose and Sucrose. All four of these respiratory substrates are carbohydrates.
Glucose is a monosaccharide sugar, which is a 'simple sugar' that have between 3 and 10 carbon atoms per molecule. They are sweet and all soluble in H2O. It has the chemical composition C6H12O6. Glucose is a white crystalline solid but is less sweet then ordinary table sugar. Powdered dry glucose
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