#Question id: 355
#SCPH28 | Zoology
Measurements show that the pH of a particular lake is 4.0. What is the hydroxide ion concentration of the lake?
#Question id: 4569
#I Life Science/ Life Sciences Group – I-V
Which of the following must exist in a population before natural selection can act upon that population?
#Question id: 5547
#SCPH28 | Zoology
Cells that rove from somites form the
#Question id: 1680
#SCPH05 I Biotechnology
Where are the MHC class II region genes in the mouse located?
#Question id: 14312
#SCPH05 I Biotechnology
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.