Q. Which of the following immobilized organism is not used to produce lactases?

View solution

Q. Which of the following is not true for immobilized lactases?

View solution

Q. Immobilized __________ was used to resolve racemic mixtures of aminoacids.

View solution

Q. Which enzyme helps in the production of D-aminoacids?

View solution

Q. D-aminoacids are used in the production of _________

View solution

Q. What does ‘Y’ represent in the following reaction?

Fumaric acid + NH₄⁺ \(\underset{x}{\rightleftharpoons}\) L-aspartic acid

View solution

Q. L-aspartic acid is used in _________ industry.

View solution

Q. Immobilized __________ is prepared by entrapping Escherichia coli cells in a k-carageenan gel cross-linked with glutaraldehyde and hexamethylenediamine.

View solution

Q. A crude immobilized-enzyme preparation consisting of heat -treated achromobacter liquidum cells entrapped in a polyacrylamide gel has been used to convert L-histidine to urocanic acid effectively.

View solution

Q. Hydantoinase and a carbamoylase used in the production of aminoacids from D-hydantoins may be obtained from _____________ species.

View solution

Q. Penicillin amidases are used in the production of different kinds of penicillins.

View solution

Q. Penicillin is produced from _____________

View solution

Q. _____________ may be obtained from immobilizing Escherichia coli on a cyanogen bromide-activated Sephadex G200 support.

View solution

Q. ___________ is produced by using immobilized Escherichia coli in batch or semi-continuous STR or PBR.

View solution

Q. ____________ is produced with the help of immobilized penicillin -G-amidase by adsorption to DEAE -cellulose in a packed bed column.

View solution

Q. What does ‘X’ represent in the following reaction?

6-aminopenicillanic acid + D-phenylglyicine methyl ester \(_{\overrightarrow{Penicillin \,amidases}}\) X + methanol

View solution

Q. What does ‘Y’ represent in the following reaction?

Benzyl-penicillin + water \(_{\overrightarrow{Penicillin \,amidases}}\) Phenylacetic acid + Y

View solution

Q. What does ‘Z’ represent in the following reaction?

Phenoxymethyl-penicillin + water \(\underset{Z}{\rightarrow}\) 6-aminopenicillianic acid + Phenoxyacetic acid

View solution

Q. Copper acts as a good catalyst in production of acrylamide.

View solution

Q. What does ‘X’ represent in the following reaction?

Acrylonitrile + water \(\underset{Cu}{\rightarrow}\) X

View solution