Enzymes

Front

What is an enzyme?

Back

A biological catalyst that speeds up chemical reactions in living organisms.

Front

What is the role of a reactant in an enzymatic reaction?

Back

The reactant is the substance that is transformed by the enzyme during the reaction.

Front

What is the optimum pH for salivary amylase?

Back

6.2

Front

What is specificity in enzymes?

Back

Specificity refers to the ability of an enzyme to catalyze a reaction with a particular substrate.

Front

What is a substrate?

Back

The specific reactant that an enzyme acts upon.

Front

What is the active site of an enzyme?

Back

The region on the enzyme where the substrate binds and the reaction occurs.

Front

What happens to enzymes at extreme pH levels?

Back

Enzymes can denature, losing their shape and functionality.

Front

What is denaturation?

Back

The process in which an enzyme loses its three-dimensional structure, rendering it inactive.

Front

What is the difference between competitive and non-competitive inhibition?

Back

Competitive inhibition occurs when an inhibitor competes with the substrate for the active site, while non-competitive inhibition occurs when an inhibitor binds to a different part of the enzyme.

Front

What is the effect of temperature on enzyme activity?

Back

Enzyme activity typically increases with temperature up to a certain point, after which it decreases due to denaturation.