ENZYMES

Zymogen are enzyme

• poison

• modulator

• precursor

• inhibitor

Which of the following statements are TRUE regarding enzyme inhibition?

• It may be reversible or irreversible

• Reversible can be competitive or non-competitive

• It is always reversible

• NOTA

• Both A and B

The effect of a reversible competitive inhibitor can be nullified by increasing the

• product concentration

• substrate concentration

• temperature

• pH level

Enzymes functions to increase the rate of metabolic reaction by

• Denaturing the substrate

• Adding energy to the reaction

• Decreasing the energy of activation

• Increasing the concentration of the reactants

An enzyme speeds up a chemical reaction by

• Regulating pH

• Preventing denaturation

• Lowering the energy of activation

• Acting as a buffer

Enzyme catalase catalyzes only the conversion of hydrogen peroxide to oxygen and water that hydrogen peroxide in the only substrate it accepts this type of specificity

• Group

• Absolute

• Linkage

• Steriochemical

An enzyme that catalyzes the formation of peptide cross links between polysaccharide strands in bacterial cell walls and thus are inhibited by penicillins.

• Penicillinase

• Beta lactamase

• Transpeptidase

• Dihydropteroate synthetase

Water is added to break down bond

• Hydratase

• Hydrolase

• Protease

• B and C

An enzyme that catalyzes the breaking of peptide bonds that maintain the primary structure of a protein

• Proteolytic enzymes

• Allosteric enzymes

• Apoenzyme

• Zymogen

Is an enzyme that catalyzes the transfer of a functional group other than hydrogen (ex. methyl, acyl, amino or phosphate groups) from one molecule to another.

• Hydrolase

• Ligase

• Dehydratase

• Transferases