Questions and answers for exam Preparation

MCQs

Total Questions : 69 | Page 4 of 7 pages

Question 31. Which of the following factor does not determine the choice of the reactor for a particular process?

Cost of a predetermined productivity within the product’s specifications
Form of enzyme (free or immobilized)
Active site is mainly constituted by non-polar amino acids for catalysis to take place
Kinetics of the reaction

Discuss Question

Answer: Option C. -> Active site is mainly constituted by non-polar amino acids for catalysis to take place
Answer: (c).Active site is mainly constituted by non-polar amino acids for catalysis to take place

Question 32. _______________ are the reactors containing a settled bed of immobilised enzyme particles.

Continuous Stirred tank batch reactors
Packed bed reactor
Stirred tank batch reactors
Fluidized bed reactors

Discuss Question

Answer: Option B. -> Packed bed reactor
Answer: (b).Packed bed reactor

Question 33. The ratio of time that would be required to convert all the substrate if the enzyme acted at Vₘₐₓ throughout to that of the actual time for complete conversion is referred to as ___________

fractional conversion
normalized time
specificity constant
miachelis Menten constant

Discuss Question

Answer: Option B. -> normalized time
Answer: (b).normalized time

Question 34. The number which relates to inertial force due to flow of solution to the viscous force resisting that flow is referred to as _____________

specificity constant
turnover number
reynolds number
miachelis Menten constant

Discuss Question

Answer: Option C. -> reynolds number
Answer: (c).reynolds number

Question 35. The reactors in which all of the product is removed after fixed time is referred to as ___________

packed bed reactors
batch membrane reactors
stirred tank batch reactors
fluidized bed reactors

Discuss Question

Answer: Option C. -> stirred tank batch reactors
Answer: (c).stirred tank batch reactors

Question 36. Fluidized bed reactors allow scaling up.

True
False
May be True or False
Can't say

Discuss Question

Answer: Option B. -> False
Answer: (b).False

Question 37. The ____________ is the ratio of the length that contains sufficient enzyme to convert all the substrate at the given flow rate if the enzyme acted at its maximum velocity throughout to that of the actual reactor length necessary for complete conversion.

normalized time
normalized reactor length
specificity constant
turnover number

Discuss Question

Answer: Option B. -> normalized reactor length
Answer: (b).normalized reactor length

Question 38. The reactor wherein the flow of gas and/or substrate keeps the immobilized enzyme particles in a fluidized state is referred to as _____________