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Home⇒ Medical Science⇒ Bochemical Engineering⇒ Downstream processing
1-Dont try to cram or spend more time here just read it fast and cover syllabus then practice MCQ's cheptor of same topic to check your progress. . |
2-Wrong options are also given but dont concentrate there, Right answer is in bold format. |
Q21 ⇒ Micro filtration refers to the separation of suspended material such as bacteria by using a membrane with spore sizes of 0.02 to 10μm [other wrong options] [Discuss in forum] 1-10A° 20-30μm 10-200A° |
Q22 ⇒ Which of the operation does not come under upstream processing? Effluent treatment [other wrong options] [Discuss in forum] Media preparation Inoculum development Storage of raw material |
Q23 ⇒ The correlation often employed to correlate adsorption data for protein is (where Ymax is the maximum amount of solute adsorbed per mass of adsorbent, X is the mass fraction of solute in the diluent phase in solute-free basis, KL is a constant and Y is the equilibrium value of the mass of solute adsorbed per mass of adsorbent) Y = YmaxX/(KL+X) [other wrong options] [Discuss in forum] Y = Ymax/(KL+X) Y = YmaxX/KL Y = Ymax- X/ (KL+X) |
Q24 ⇒ Concentration polarization can be reduced further by all of the above [other wrong options] [Discuss in forum] pre filtering the solution reducing the flow rate per unit membrane surface area back washing periodically |
Q25 ⇒ Selectivity can be expressed as ratio of the distribution coefficients in different solute [other wrong options] [Discuss in forum] mass fraction of the solute in the extract phase at equilibrium mass fraction of the solute in the raffinate phase ratio of the mass fraction of the solute in the extract phase to the raffinate phase |
Q26 ⇒ The conventional filtration involves the separation of large particles generally dp>10μm [other wrong options] [Discuss in forum] dp>5μm dp>15μm dp>20μm |
Q27 ⇒ Chromatography is based on the different rate of movement of the solute in the column [other wrong options] [Discuss in forum] separation of one solute from other constituents by being captured on the adsorbent different rate of movement of the solvent in the column any of the above |
Q28 ⇒ An ion exchange resin is composed of all of these [other wrong options] [Discuss in forum] polymeric network ionic functional groups counter ions |
Q29 ⇒ Which of the following is not the physical method for the cells rupturing? Enzymatic digestion [other wrong options] [Discuss in forum] Milling Homogenization Ultrasonication |
Q30 ⇒ Start up expenses in a fermentation industry varies from 5-10% of the capital cost [other wrong options] [Discuss in forum] 0-5% of the capital cost 10-15% of the capital cost 15-20% of the capital cost |
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