Explore topic-wise MCQs in Testing Subject.

This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.

1.

An enzyme

A. becomes part of the final products
B. is nonspecific for substrate
C. is consumed by the reaction
D. is heat and pH labile
Answer» E.
2.

An enzyme ______ the activation energy required for a chemical reaction.

A. increases
B. converts
C. lowers
D. catalyzes
Answer» D. catalyzes
3.

Catabolism is a form of metabolism in which _____molecules are converted into ________molecules.

A. large, small
B. small, large
C. amino acid, protein
D. food, storage
Answer» B. small, large
4.

_________is another term for biosynthesis.

A. catabolism
B. anabolism
C. metabolism
D. catalyst
Answer» C. metabolism
5.

In a viable plate count, each ___represents a ___from the sample population.

A. cell, colony
B. colony, cell
C. hour, generation
D. cell,generation
Answer» C. hour, generation
6.

Generation time of Escherichia coli is

A. 20 minutes
B. 20 hours
C. 20 days
D. 200 hours
Answer» B. 20 hours