Fungi Ph Lab

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The Effects of pH levels on the Growth of Fungi Introduction: Fungi is one of the six kingdoms in biology which resides under the Eukarya domain, differing from the Bacteria and Archae domains. The cell type for fungi is Eukaryote, meaning all cells with this cell type are membrane bound and have a nucleus. A nucleus is a control system for a cell that controls all activity. Although plants and fungi reside under the same domain, these are two different kingdoms with similarities and differences. One difference is that plants carry out photosynthesis and fungi does not, instead fungi are heterotrophic, which means they depend on other organisms for nutrients. Both plants and fungi have a cell wall but a plant's cell wall is made up of cellulose, where as fungi cell…show more content…
On second bread piece add 20 drops of vinegar (acidic). 10. Repeat steps 4-8 for second bread piece. 11. One third bread piece add 20 drops of sugar water (basic). 12. Repeat steps 4-8 for third bread piece. 13. Place all Petri dishes in safety and observe daily to see changes. Analysis and Conclusion: 1. From the three conditions (neutral, acidic, basic) in this experiment, the control condition is the neutral pH level because this condition is because compared to the other two conditions. The pH level of distilled water is 7 (in the middle of the scale - not acidic/basic) so when comparing, it is evident to see the effect of high/low pH levels with the moderate level. It is necessary to have a control condition because the control condition is constant and does not change, the amount of each pH level added also does not change throughout the experiment and stays at a total of twenty. 2. Yes, there were more than 1 type of mould growing on each of the food items because by the last day of conducting this experiment, there were many different coloured spots (gray, blue, burgundy, orange, black) which indicates how severe the mould has gotten and the rate of progression of the mould

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