An industrial waste-water stream is fed to a stirred-tank reactor continuously and the cells are recycled back to the reactor from the bottom of the sedimentation tank placed after the reactor. The following are given for the system: F = 100 l/h; S0 = 5000 mg/l; mm = 0.25 h-1 ; Ks = 200 mg/l; α (recycle ratio) = 0.6; C (cell concentration factor) = 2; Y ^M _X/S = 0.4. The effluent concentration is desired to be 100 mg/l.  Determine the required reactor volume.

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#Question id: 10761

#I Life Science/ Life Sciences Group – I-V

Which one of the following combinations of secondary metabolite biosynthetic pathway found in the biosynthesis of terpenes?

#Question id: 5562

#I Life Science/ Life Sciences Group – I-V

In an egg cell treated with a chemical that binds calcium and magnesium ions, the ________.

#Question id: 11385

#SCPH28 | Zoology

Which of the following biomes is correctly paired with the description of its climate?

A) savanna-low temperature, precipitation uniform during the year

B) tundra-long summers, mild winters

C) Taiga-relatively short growing season, Low precipitation

D) temperate grasslands-relatively warm winters, most rainfall in summer

E) tropical forests-nearly constant day length and temperature

#Question id: 4151

#SCPH05 I Biotechnology

The signal sequences that direct proteins to the nucleus are:

#Question id: 10595

#SCPH06 I Botany

If the per capita birth rate (b) and per capita death rate (d) in one year is 0.80 and 0.20 respectively. if the initial population size is 600, what will be net change (dN) in population size in one year