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- 1. What is the significance of use of potato in the preparation of culture media? 2. What is the significance of inverting the container after the media had solidified?1. Explain what is Coulter Counter method in microbiology and its advantages and disadvantages?1-The method of sterilizations we used in the tissue culture lab a. Fumigation b. Filtration C. Autoclave d. Sun light
- 1. If the yogurt were contaminated, how would thr gram stain look like? And how will it affect the taste and smell of the yogurt? 2. How are microbial fermentations used to preserve food?9. The process in which all organisms and pathogens are destroyed is called ------. a) Disinfection b) Sterilization c) Antisepsis d) Pasteurization1. Calculate the CFU/mL of the original culture for the countable plate as shown in the diagram. b) How many colonies would you expect if you plated out 0.1 mL from Tube C. c) How many colonies would you expect if you plated out 1.0 mL from Tube C.
- 12. A differential media a) allows visual distinction between bacteria to perform a specific biochemical process b) inhibits the growth of certain bacteria c) will only grow Gram-negative bacteria d) is a selective mediaHow do you observe growth in liquid microbiological media? a) the medium is cloudy or turbid b) colonies appear on the surface of the medium c) the medium becomes solid d) colonies appear distributes throughout the mediumWhich of the following medium would be most appropriate for the bacterial cultures from stomach? a. LB b. Selective C. Differential d. Nutient