Enzymes III: Question Preview (ID: 4603)

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What is the term used to describe the energy needed to get a reaction started?
a) correct
d) incorrect

A substance that accelerates the rate of a chemical reaction is called?
a) correct
d) incorrect

Which of the following statements about enzymes is NOT true?
a) enzymes work best at a specified pH
b) enzymes are biological catalyst
c) enzymes are proteins
d) enzymes are not affected by temperature

Enzymes affect the reactions in living cells by lowering the
a) active site energy of the reaction
b) activation energy of the reaction
c) temperature of the reaction
d) speed of the reaction

What determines the function of a protein?
a) size
b) substrate
c) shape
d) pH

Substances that result from a chemical reaction.
a) products
b) reactors
c) producers
d) reactants

denatures a protein by adding heating
a) pH
b) wax
c) temperature
d) pressure

What part of the reaction is the reactants?
a) a
b) b
c) c

What part of the reaction is the activation energy?
a) a
b) b
c) c
d) d

What is produced when hydrogen peroxide and catalase meet?
a) water and carbon dioxide
b) water and oxygen
c) carbon dioxide and liver
d) liver and water

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