Question

1. Enzymes speed up chemical reactions by lowering the ________________, which allows the reaction to proceed much more quickly.

Answer 1

Enzymes are proteins that contains ribonucleic acid (RNA) .An enzyme binds to one or more reactant Molecule in order to catalyze a reaction.

Explanation:

1. Enzymes speed up chemical reactions by lowering the Activation Energy, which allows the reaction to proceed much more quickly.

2. During an enzymatic reaction, a molecule of Substrate binds to the enzyme and is broken down into one or more molecules of  product, which are released.

3. The induced fit between an active site and its substrate often strains bonds and helps the reaction proceed

4. The specific location within an enzyme molecule where the substrate binds is called the Active site.

5. Lactose takes years to break down on its own. But if exposed to the protein lactase, the reaction proceeds very quickly, while lactase itself remains unchanged. Lactase is an example of an enzyme

6. High temperatures or changes in pH can an enzyme, causing it to lose its shape and biological activity. An  inhibitor  is a molecule that can bind to an enzyme and prevent the enzyme from working.

7. An enzyme is considered a Catalyst because it speeds up a chemical reaction without being used up.