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TLS Online TPP Program

#Question id: 349

Increased atmospheric CO2 concentrations might have what effect on seawater?

#SCPH05 I Biotechnology

  1. Seawater will become more alkaline, and carbonate concentrations will decrease.

  2. There will be no change in the pH of seawater, because carbonate will turn to bicarbonate.

  3. Seawater will become more acidic, and carbonate concentrations will decrease.

  4. Seawater will become more acidic, and carbonate concentrations will increase.

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TLS Online TPP Program

#Question id: 14858

#SCPH06 I Botany

Given two events A and B and P(A) = 1/4, P(B/A) = 1/2, P(A/B) = 1/4. Which of the following is true?
TLS Online TPP Program

#Question id: 14859

#SCPH05 I Biotechnology

Liquid from a brewery fermenter can be considered to contain 10% ethanol and 90% water. 50000 kg h-1 of this fermentation product are pumped to a distillation column on the factory site. Under current operating conditions a distillate of 45% ethanol and 55% water is produced from the top of the column at a rate one-tenth that of the feed.
 What is the composition of the waste 'bottoms' from the still?
TLS Online TPP Program

#Question id: 14860

#SCPH05 I Biotechnology

A fermentation slurry containing Streptomyces kanamyceticus cells is filtered using a continuous rotary vacuum filter. 120 kg h- 1 slurry is fed to the filter; 1 kg slurry contains 60 g cell solids. To improve filtration rates, particles of diatomaceous-earth filter aid are added at a rate of 10 kg h- 1. The concentration of kanamycin in the slurry is 0.05% by weight. Liquid filtrate is collected at a rate of 112 kg h-1; the concentration of kanamycin in the filtrate is 0.045% (w/w). Filter cake containing cells and filter aid is continuously removed from the filter cloth.
 What percentage liquid is the filter cake?
TLS Online TPP Program

#Question id: 14861

#SCPH05 I Biotechnology

A fermentation slurry containing Streptomyces kanamyceticus cells is filtered using a continuous rotary vacuum filter. 120 kg h- 1 slurry is fed to the filter; 1 kg slurry contains 60 g cell solids. To improve filtration rates, particles of diatomaceous-earth filter aid are added at a rate of 10 kg h- 1. The concentration of kanamycin in the slurry is 0.05% by weight. Liquid filtrate is collected at a rate of 112 kg h-1; the concentration of kanamycin in the filtrate is 0.045% (w/w). Filter cake containing cells and filter aid is continuously removed from the filter cloth.
If the concentration of kanamycin in the filter-cake liquid is the same as in the filtrate, how much kanamycin is absorbed per kg filter aid?.,..... 10-4
TLS Online TPP Program

#Question id: 14891

#SCPH05 I Biotechnology

What do you mean by idiophone? 
TLS Online TPP Program

#Question id: 14892

#SCPH05 I Biotechnology

Tyndallisation is method of