Question

Which of the following enzyme cannot be extracted from liver?

(a) Glucokinase

(b) Lactose synthase

(c) Arginase

(d) Glutaminase

The question was asked during an internship interview.

The above asked question is from Enzyme Extraction and Isolation topic in section Enzyme Extraction and Isolation of Enzyme Technology

Answer 1

Right option is (b) Lactose synthase

For explanation I would say: Source has to be such that enzyme is available in large amounts. Liver is a good source for enzymes which include glucokinase, arginase, glutaminase, glucornidase etc. Lactose synthase is available for extraction from lactating mammary gland.