200 Best MCQs on Immobilized enzyme- biochemical engineering
Q9). For a steady state condition, the change of substrate concentration (dCs/dt) is
a).zero
b).1
c).>1
d).<1
Correct Answer:
zero
Explaination:
Q10). Damkohler number(Nda) is
a).the ratio of the maximum reaction rate to the maximum mass transfer rate
b).the ratio of the minimum reaction rate to the maximum mass transfer rate
c).the ratio of the maximum reaction rate to the minimum mass transfer rate
d).the ratio of the minimum reaction rate to the minimum mass transfer rate
Correct Answer:
the ratio of the maximum reaction rate to the maximum mass transfer rate
Explaination:
Q11). For glucose isomerization by immobilized enzyme, the reactor generally used is
a).CSTR
b).plug flow
c).packed bed
d).fluidized bed
Correct Answer:
packed bed
Explaination:
Q12). The most commonly employed cross-linked polymer is the
a).polyacrylamide gel
b).collagen
c).celluloses
d).cation exchange resin
Correct Answer:
polyacrylamide gel
Explaination:
Q13). Which of the following is not the correct answer?
a).Immobilized enzyme may show selectively altered chemical properties
b).Immobilized enzyme may show selectively altered physical properties
c).Immobilized enzyme may simulate the realistic natural environment where the enzyme come from the cell
d).None of the above
Correct Answer:
None of the above
Explaination:
Q14). Commonly employed water insoluble supports for the covalent attachment of enzyme include
a).acrylamide based polymers
b).polypeptides
c).dextran
d).all of these
Correct Answer:
all of these
Explaination:
Q15). Which of the following is not a physical method of immobilization?
a).Adsorption
b).Entrapment
c).Micro encapsulation
d).None of these
Correct Answer:
None of these
Explaination:
Q16). The support material for immobilization of cells of is
a).ion exchange resins
b).gelatin
c).Anthracite
d).agarose and carbodiimide
Correct Answer:
agarose and carbodiimide
Explaination: