⚗️ Biochemical Engineering Solved MCQs with Answers

Practice 513 approved ⚗️ Biochemical Engineering questions with verified answers from the 🧬 Medical Science subject for Pakistan exams.

513 solved MCQs

Water insoluble enzymes can be prepared by using multifunctional agents that are bifunctional in nature and haveAnswer: Low molecular weight Functional groups of the nonessential amino acid residues that are suitable for the immobilization process areAnswer: All of these Which medium is used for the production of Penicillin using immobilized cellsAnswer: Glucose medium Which of the following is taken as an assumption in the distributed model?Answer: All of these The immobilized enzyme produced by micro encapsulation technique providesAnswer: An extremely large surface area Which of the following is considered as a disadvantage to the adsorption method of immobilization?Answer: State of immobilization is very sensitive to solution pH, ionic strength and temperature During the enzymatic reaction of an immobilized enzyme, the rate of substrate transfer isAnswer: Equal to that of substrate consumption The immobilized technique involving chemical method isAnswer: Covalent bond formation dependent For a steady state condition, the change of substrate concentration (dCₛ/dt) isAnswer: zero Damkohler number N(Da) isAnswer: the ratio of the maximum reaction rate to the maximum mass transfer rate For glucose isomerization by immobilized enzyme, the reactor generally used isAnswer: Packed bed The most commonly employed cross-linked polymer is theAnswer: Polyacrylamide gel Which of the following is not the correct answer?Answer: None of these Commonly employed water insoluble supports for the covalent attachment of enzyme includeAnswer: All of these Which of the following is not a physical method of immobilization?Answer: None of these The support material for immobilization of cells of Bacillus subtilis isAnswer: Agarose and carbodiimide The intraparticle mass transfer resistance can affect the rate of enzyme reaction, if enzymes are immobilized byAnswer: Copolymerization or microencapsulation The covalent attachment of enzyme molecules is viaAnswer: Nonessential amino acids residues to water insoluble, functional supports 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 asAnswer: Actual reaction rate/ rate if not slowed by diffusion Which is not the method for producing immobilized enzymes with multifunctional reagents?Answer: None of these The immobilization technique involving physical method isAnswer: Non-covalent bond formation dependent Which of the following is the commonly employed adsorbents?Answer: All of these Various techniques are available for determining the effective diffusivity of solute in gel. Thin disk method usesAnswer: A diffusion cell with two compartments divided by a thin gel The effectiveness factor increases with theAnswer: Increase of diffusivity and decreased with the increase of particle size A competitive inhibitor of an enzyme is usuallyAnswer: Structurally similar to the substrate. Linear inhibition is sometimes called asAnswer: Complete inhibition The types of inhibition pattern based on Michaelis Menten equation areAnswer: All of these The effect of non-competitive inhibition on a Lineweaver-Burk Plot is thatAnswer: It can change the y-intercept The rate-determining step of Michaelis Menten kinetics isAnswer: The complex dissociation step to produce product In competitive inhibition a factor is obtained from the measurement ofAnswer: Kₘ