Homework Answers
Answer: True It has been found that temperature is one of the critical entities which plays a crucial role in yeast fermentation process. Yeast needs not to be not so cold or not so warm . Yeast fermentation works best at an optimum temperature of (32˚C-35˚C). Increase in temperature have been found to yield low ethanol.
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The reactivity of the yeast suspension was affected by the temperature: TRUE FALSE
True or false The mere presence of yeast is not proof of yeast vaginitis as the...
True or false The mere presence of yeast is not proof of yeast vaginitis as the vaginal Flora of up 25% of healthy women can contain candida spp.
True or False Yeast is eukaryotic, unicellular organisms that lack mycelial.
True or False Yeast is eukaryotic, unicellular organisms that lack mycelial.
You have been given a yeast suspension to count. You count the number of yeast cells...
You have been given a yeast suspension to count. You count the number of yeast cells in 7 of the 0.04mm2 boxes of the central grid of the hemocytometer. Your counting results are: 20, 18, 19, 21, 22, 17, and 22. Assuming there has been no dilution and you are counting the original sample, determine the concentration of cells in the original sample Prepare a set of serial dilutions of the yeast suspension for a viable count. Write and draw...
4. A suspension of yeast cells is to be filtered at a constant filtration rate of...
4. A suspension of yeast cells is to be filtered at a constant filtration rate of 50 L/min. The suspension has a solid content of 70 kg/m3 of suspension and the yeast cells have a bulk density of 800 kg/m3. Laboratory tests indicate that the specific cake resistance is 40 m/kg and the viscosity of the filtrate is 2.9x10-3 kg/m.s. The filter has an area of 0.1 m2 and the medium offers negligible resistance. How long can the filtration rate...
Question: Only Yeast Are Able To Carry Out Fermentation For Catabolism. True or False
Question: Only Yeast Are Able To Carry Out Fermentation For Catabolism. True or False
A suspension of yeast cells is being grown under anaerobic conditions such that glucose is degraded...
A suspension of yeast cells is being grown under anaerobic conditions such that glucose is degraded to ethanol and carbon dioxide. Adding an inhibitor of alcohol dehydrogenase to the yeast cell suspension results in rapid cell death. Why? a.) Without alcohol dehydrogenase, the acetaldehyde concentration increases to levels that are toxic to the yeast cells. b.) NADH generated during glycolysis cannot be recycled back to NAD+, thus anaerobic ATP production through glycolysis cannot be maintained. c.) Pyruvate is no longer...
which three of this organism most affected in a cold temperature in terms of cellular respiration...
which three of this organism most affected in a cold temperature in terms of cellular respiration why? peas? crickets? yeast?
TRUE or FALSE: An increase in the outside temperature increases the sales for the month. True...
TRUE or FALSE: An increase in the outside temperature increases the sales for the month. True False
Retention of sodium ions and wated bu kidney are affected by glucocorticoids? a-true b-false
Retention of sodium ions and wated bu kidney are affected by glucocorticoids? a-true b-false
True/False: v) True/False: Pressure always acts normal to a surface. vi) True /False: The fluid velocity...
True/False: v) True/False: Pressure always acts normal to a surface. vi) True /False: The fluid velocity is always tangent to a streamline. vii) True / False: Turbulent flows are not affected by surface roughness.
4. A suspension of yeast cells is to be filtered at a constant filtration rate of 50 L/min. The suspension has a solid content of 70 kg/m3 of suspension and the yeast cells have a bulk density of 800 kg/m3. Laboratory tests indicate that the specific cake resistance is 40 m/kg and the viscosity of the filtrate is 2.9x10-3 kg/m.s. The filter has an area of 0.1 m2 and the medium offers negligible resistance. How long can the filtration rate...
True/False: v) True/False: Pressure always acts normal to a surface. vi) True /False: The fluid velocity is always tangent to a streamline. vii) True / False: Turbulent flows are not affected by surface roughness.
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