Bio Ch 2 Pt B Vocab

The amount of energy that needs to be absorbed for a chemical reaction to start.

• Endothermic

• Exothermic

• Catalyst

• Activation Energy

A chemical reaction releases more energy than it absorbs.

• Endothermic

• Exothermic

• Catalyst

• Activation Energy

A chemical reaction absorbs more energy than it releases.

• Endothermic

• Exothermic

• Catalyst

• Activation Energy

A substance that decreases the activation energy needed to start a chemical reaction.

• Endothermic

• Exothermic

• Catalyst

• Activation Energy

The substances made by a chemical reaction.

• Reactant

• Substrate

• Enzyme

• Product

A specific substance that binds to the active site of an enzyme.

• Reactant

• Substrate

• Enzyme

• Product

A protein in living things that speeds up chemical reactions by lowering activation energy.

• Catalyst

• Substrate

• Enzyme

• Product

The substances that are changed during a chemical reaction.

• Reactant

• Substrate

• Enzyme

• Product

A condition of optimal internal environment maintained by organisms by sensing and responding to stimuli.

• Denaturation

• Homeostasis

• Negative Feedback Loop

• Activation Energy

The breakdown and unfolding of a protein (enzyme) causing it to be non-functional.

• Denaturation

• Homeostasis

• Negative Feedback Loop

• Activation Energy