Science II: Chemistry Note Check

The diagram illustrates a biochemical process that occurs in organisms. The substance labeled catalyst also is known by what other name?

• ion

• inorganic compound

• antibody

• enzyme

The minimum amount of energy needed for a chemical reaction is called:

• activation energy

• product threshold

• absorbent energy

• principle mass

In the following equation, what are the products of the reaction?

C₆H₁₂O₆ + 6 O₂ → 6 CO₂ + 6 H₂O

• C₆H₁₂O₆ and 6 H₂O

• C₆H₁₂O₆ and 6 O₂

• 6 O₂ and 6 CO₂

• 6 CO₂ and 6 H₂O

What type of compound is made up of atoms held together by covalent bonds?

• isotope

• ion

• element

• molecule

Which cannot take place during a chemical reaction?

• bonds forming between atoms

• formation of new atoms

• formation of new molecules

• bonds breaking between atoms

The specific location where a substrate binds on an enzyme is called:

• the catalyst

• the enzyme-substrate complex

• the binding point

• the active site

How can enzymes benefit chemical reactions, as shown in this energy diagram?

• slowing reactions

• raising activation energy

• lowering activation energy

• increasing the amount of product

How many different kinds of atoms does an element contain?

• six

• two

• four

• one

What kind of chemical reaction does this energy diagram show?

• mass creating

• ionic

• endothermic

• exothermic

Acidic solutions are produced by the release of _______ ions.

• hydrogen

• sodium

• oxygen

• potassium