Home⇒ Medical Science⇒ Bochemical Engineering⇒ Immobilized enzyme
| 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. |
| Q1 ⇒ For a steady state condition, the change of substrate concentration (dCs/dt) is zero [other wrong options] [Discuss in forum] |
| Q2 ⇒ Which of the following is the commonly employed adsorbents? All of these [other wrong options] [Discuss in forum] |
| Q3 ⇒ Which of the following is considered as a disadvantage to the adsorption method of immobilization? State of immobilization is very sensitive to solution pH, ionic strength and temperature [other wrong options] [Discuss in forum] |
| Q4 ⇒ Commonly employed water insoluble supports for the covalent attachment of enzyme include all of these [other wrong options] [Discuss in forum] |
| Q5 ⇒ To measure the extent to which the reaction rate is lowered because of resistance to mass transfer, the effectiveness factor of an immobilized enzyme, η can be defined as actual reaction rate/ rate if not slowed by diffusion [other wrong options] [Discuss in forum] |
| Q6 ⇒ Which of the following is taken as an assumption in the distributed model? All of the above [other wrong options] [Discuss in forum] |
| Q7 ⇒ The most commonly employed cross-linked polymer is the polyacrylamide gel [other wrong options] [Discuss in forum] |
| Q8 ⇒ The intraparticle mass transfer resistance can affect the rate of enzyme reaction, if enzymes are immobilized by copolymerization or microencapsulation [other wrong options] [Discuss in forum] |
| Q9 ⇒ The immobilized enzyme produced by micro encapsulation technique provides an extremely large surface area [other wrong options] [Discuss in forum] |
| Q10 ⇒ Which of the following is not the correct answer? None of the above [other wrong options] [Discuss in forum] |
| Q11 ⇒ The covalent attachment of enzyme molecules is via nonessential amino acids residues to water insoluble, functional supports [other wrong options] [Discuss in forum] |
| Q12 ⇒ Which medium is used for the production of Penicillin using immobilized cells glucose medium [other wrong options] [Discuss in forum] |
| Q13 ⇒ Water insoluble enzymes can be prepared by using multifunctional agents that are bifunctional in nature and have low molecular weight [other wrong options] [Discuss in forum] |
| Q14 ⇒ If Damkohler number, NDa >>1, the reaction rate is much greater than the mass transfer rate and the overall reaction is controlled by the rate of mass transfer. In this case, the enzyme reaction can be described as (where Csb and Cs are the substrate concentration in bulk of solution and at the immobilized enzyme surface respectively. ks mass transfer coefficient, and a is the surface area of an immobilized enzyme particles) rp = ksaCsb [other wrong options] [Discuss in forum] |
| Q15 ⇒ Damkohler number(NDa) is the ratio of the maximum reaction rate to the maximum mass transfer rate [other wrong options] [Discuss in forum] |
| Q16 ⇒ The immobilized technique involving chemical method is covalent bond formation dependent [other wrong options] [Discuss in forum] |
| Q17 ⇒ Various techniques are available for determining the effective diffusivity of solute in gel. Thin disk method uses a diffusion cell with two compartments divided by a thin gel [other wrong options] [Discuss in forum] |
| Q18 ⇒ The support material for immobilization of cells of Bacillus subtilis is agarose and carbodiimide [other wrong options] [Discuss in forum] |
| Q19 ⇒ The immobilization technique involving physical method is non-covalent bond formation dependent [other wrong options] [Discuss in forum] |
| Q20 ⇒ During the enzymatic reaction of an immobilized enzyme, the rate of substrate transfer is equal to that of substrate consumption [other wrong options] [Discuss in forum] |
| Or |