Any 7 questions please Answer!!!! 13. Why must media, vessels and instruments be sterilized before they are...

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Biology

Any 7 questions please Answer!!!!
13. Why must media, vessels and instruments be sterilized beforethey are used for microbiological procedures?
14. What is the difference between complex media and definedmedia? Give one example of each.
15. Why is it necessary to use strong disinfectants in areasexposed to tuberculosis patients?
16. Describe five physical methods of microbial growth.
17. Contrast the structures and actions of soaps and quats.
18 How do halogens control microbial growth? Compare andcontrast the use of iodine and chlorine.
19. Why is autoclaving true sterilization and boiling iseffective for sanitizing restaurant tableware?
20. Compare and contrast incineration and hot air as examples ofdry heat used to control microbial growth.
21. How does mitosis differ from binary fission?
22. Why are they more antibacterial drugs than antifungaldrugs?
23. How are the cysts of protozoan similar to endospores and howdo they differ?
24. Alveolates are divided into three subgroups, list the groupsand describe one example for each subgroup.
25. What is a schizont? What pathogen reproduce asexually viaschizogony?

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13 Microbiological procedures are used for the growth of a specific type of microbial strain So all the quipments should be sterilized in advance so as to avoid contamination by any other undesirable microbe and which may interfere with the growth of the desired one 14 Complex media can be defined as the one where its chemical constituents may vary ie the exact chemical composition is not known It is also rich in nutrients Ex Nutrient Agar See Answer

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