Enzymes Quiz

What is the primary function of enzymes in biological systems?

• To provide energy for reactions

• To speed up chemical reactions

• To store genetic information

• To transport oxygen in the blood

What are enzymes primarily made of?

• Carbohydrates

• Lipids

• Proteins

• Nucleic acids

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What role do enzymes play in biological reactions?

• They slow down reactions

• They stop reactions

• They speed up reactions

• They have no effect on reactions

What is the function of a biological catalyst?

• To create new reactions

• To speed up reactions

• To change the products of reactions

• To prevent reactions

What is the primary function of enzymes in chemical reactions?

• Increase the temperature of the reaction

• Lower the activation energy

• Change the products of the reaction

• Increase the energy of reactants

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What is one characteristic of enzymes regarding the speed of reactions?

• They slow down reactions.

• They make reactions happen faster.

• They stop reactions from occurring.

• They have no effect on reaction speed.

How are enzymes used in reactions?

• They are used up and cannot be reused.

• They are used once and then discarded.

• They are not used up and can be used over and over again.

• They are used up and need to be replaced frequently.

Enzymes are needed in what kind of amounts?

• Large

• Small

• Moderate

• Excessive

What is a key characteristic of enzymes regarding their substrate?

• They are non-selective

• They are highly selective

• They ignore the substrate

• They randomly select substrates

What do enzymes do to substrates?

• Ignore them

• Destroy them

• Chemically recognize, bind, and modify them

• Leave them unchanged