Biology Mcqs - Free MCQs for FPSC, NTS, PPSC, PMS, CSS & All Pakistan Exams 2026 - Page 71

The pH of Trypsin enzymes is:

A. Less acidic
B. Basic
C. Highly acidic
D. None of them

The pH of Pepsin enzyme is:

A. Acidic
B. Basic
C. Alkaline
D. None of them

The inhibitors which are attached to the allosteric site inactive of enzymes are called:

A. Competetive inhibitors
B. Non-competetive in inhibitors
C. Co-factors
D. Co-enzyme

The inhibitors which resembles with the substrate and are attached to the active site of enzymes are called:

A. Competetive inhibitors
B. Co-enzymes
C. Non-competetive inhibitors
D. Co-factors

The substances which decrease the activity of enzymes are called:

A. Activators
B. Inhibitors
C. Prosthetic groups
D. Co-enzymes

The inorganic substances which increase the activity of enzymes are called:

A. Activators
B. Inhibitors
C. Competetive inhibitors
D. None of them

NAD, NADP, FMN and ATP are considered as:

A. Co-enzyme
B. Co-factors
C. Allosteric
D. Non-allosteric

When the prosthetic group is of inorganic type, it is called:

A. Co-enzyme
B. Co-factor
C. Allosteric
D. None of them

The enzymes which help in the combination of two molecules by the use of energy are called:

A. Hydrolase
B. Ligase
C. bysase
D. Isomerase

The enzymes which catalyze the removal or addition of one group from or to a double bond are called:

A. Lysase
B. Ligase
C. Hydrolase
D. isomerase

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