Enzymes and Oxidation-Reduction Reaction

Enzymes

are biological catalysts that speed up the rate of reaction between substances within cells without being changed or destroyed in a chemical reaction

substrate

The substance on which an enzyme acts is called ________________

Enzymes

are biological catalysts that speed up the rate of reaction between substances within cells without being changed or destroyed in a chemical reaction

substrate

The substance on which an enzyme acts is called ________________

active site

The specific place on an enzyme where the substrate binds and the reaction occurs is called _____________________

activation energy

For a chemical reaction to occur, energy is required which is known as ___________

-ase

Enzyme names usually end in ______ and named after the affected substrate

Protease

Proteolytic enzymes that digest protein such as meat and seafood

lipase

fats degrading enzymes such as beef, fresh cream, cheese

amylase

sugar degrading enzymes that breaks down sweet foods

pH (acidity and basicity)

measure of the hydrogen ion (H+) and hydroxide ion (OH-) concentrations.

temperature

Increasing _______ increases the rate of reaction. Random collision of enzymes with substrate molecules results to more products.

oxidation reactions

Reactions that remove electrons from donor molecules, leaving them oxidized

reduction reactions

those that add electrons to acceptor molecules, leaving them reduced

oxidation

_________ involves the loss of electrons

reduction

___________ involves the gain of electrons

reducing agent

the substance oxidized is the __________________

oxidizing agent

the substance reduced is the

Redox enzymes

are a general term for enzymes that catalyze the redox between two molecules.

oxidase

oxidase

enzyme that can catalyze the oxidation of substances by oxygen

dehydrogenase

enzyme that catalyzes the removal of hydrogen from a substrate, often involved in oxidation-reduction reactions