Enzymes and ATP

The amount of energy needed to make a chemical reaction start:

• deactivation energy

• activation energy

• start-up energy

• reaction energy

A reactant is:

• the substance that is changed during a reaction

• the substance that is made by a chemical reaction

Tags

NGSS.MS-PS1-2

An endothermic reaction:

• absorbs energy

• releases energy

Tags

NGSS.HS-PS1-4

Which type of reaction results in less energy in the products than in the reactants?

• exothermic

• endothermic

Tags

NGSS.HS-PS1-4

Enzymes are:

• carbohydrates

• lipids

• proteins

• nucleic acids

Tags

NGSS.HS-LS1-1

Catalysts ______ chemical reactions.

• speed up

• slow down

Tags

NGSS.HS-PS1-5

Denaturation:

• helps the enzyme by speeding it up

• hurts the enzyme by deforming it

A competitive inhibitor

• speeds up a reaction

• slows down a reaction

Enzymes ______ the activation energy needed to start a chemical reaction.

• raise

• lower

The active site is represented by letter

• A

• B

• C

Tags

NGSS.HS-LS1-1