Problem: If yeast (Saccharomyces cerevisiae) is placed within a test tube of 10 ml of 5% glucose solution in varying amounts (10 ml, 20 ml, and 30 ml) to measure fermentation rates by pressure, what amount of yeast will ferment the fastest?
Hypothesis:
If yeast (Saccharomyces cerevisiae) is placed within a test tube of 10 ml of 5% glucose solution in varying amounts (10 ml, 20 ml, and 30 ml) to measure fermentation rates by pressure, then 30 ml will ferment the fastest because there will be more yeast to undergo fermentation; producing more carbon dioxide.
Analysis:
There are two types of cellular respiration (CR), there is aerobic and anaerobic. Aerobic CR requires the cell to contain a mitochondrion and the presence of oxygen. Aerobic CR will produce around 38 molecules of ATP per glucose molecule. Anaerobic CR works without oxygen or a mitochondrion, but will only produce 2 molecules of ATP. Anaerobic CR requires NAD+ to convert into NADH. When the cell creates too much NADH and is running low on NAD+ it undergoes fermentation. …show more content…
There are many types of fermentation and are categorized by their by-product. The one animals and plants do is lactic acid fermentation. Lactic acid fermentation is further divided into two types: homolactic fermentation and hetrolactic fermentation. Homolactic fermentation just produces lactic acid, whereas hetrolactic will also produce a carbon dioxide and ethanol. Ethanol fermentation produces just carbon dioxide and ethanol. The difference between ethanol and hetrolactic fermentations is that hetrolactic fermentation will also produce a lactic acid, whereas ethanol fermentation does not. Ethanol and Homolactic fermentations are the two most common forms of fermentation, but others include ABE and mixed