2. If the stock culture you were given was old (death or exponential decline phase), would you expect the heterotrophic

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2 If The Stock Culture You Were Given Was Old Death Or Exponential Decline Phase Would You Expect The Heterotrophic 1 (47.89 KiB) Viewed 66 times

2. If the stock culture you were given was old (death or exponential decline phase), would you expect the heterotrophic plate count to be higher or lower than the total count? Why? 3. Which method would you use (heterotrophic plate count or spectrophotometer) if you had count the number of cells in 200 different cultures? Why? 4. Which method would you use if you needed to count the number of cells/ml of blood? Why? 5. Why bother doing 3 replicates during the plate count? 6. Why would it be inappropriate to use a plate that had only 10 colonies on it to calculate the number of cells in the original culture? 7. Which set of plates did you count and why? 8. What happened to the percent transmittance, OD, and turbidity as the culture became more dilute? Did each increase or decrease?