Cell Metabolism Quiz

What is metabolism?

• The combination of all the chemical reactions within an organism

• The process of ONLY breaking down molecules into smaller atoms

• The synthesis of glycogen from protein molecules

• The release of energy when building molecules

What are reactants and products in a chemical reaction?

• Reactants are the initial atoms/molecules and products are the end result of the chemical reaction

• Reactants are the end result of the chemical reaction and products are the initial atoms/molecules

• Reactants are the molecules that use ONLY ADP, and products are the molecules that require ONLY ATP

• Reactants are the atoms/molecules that require energy and products are the atoms/molecules that release energy

What type of reaction requires net energy to convert reactants into products?

• Endergonic

• Exergonic

• Catabolic

• Anabolic

Which type of reaction releases net energy when converting reactants to products?

• Endergonic

• Exergonic

• Catabolic

• Anabolic

What is the role of endergonic reactions in our bodies?

• To build larger molecules

• To break down larger molecules

• To store energy in protein molecules

• To release energy for muscle contractions

What is the role of exergonic reactions in our bodies?

• To build larger molecules

• To break down larger molecules

• To store energy in ATP molecules

• For dehydration synthesis reactions

What are catabolic reactions?

• Reactions that break molecules (usually exergonic, releases net energy)

• Reactions that build molecules (usually endergonic, requires energy)

• Reactions that store energy in cell membranes

• Reactions that release energy and build molecules

What are anabolic reactions?

• Reactions that break molecules (usually exergonic, releases net energy)

• Reactions that build molecules (usually endergonic, requires energy)

• Polymers for steroid hormones

• Reactions that release energy for muscle contractions

What is the primary energy storage molecule in our cells?

• DNA

• RNA

• ATP

• ADP

How is energy released from ATP to power endergonic reactions?

• By breaking the bond between the last two phosphates in ATP

• By adding a third phosphate to ADP

• By storing energy in glycogen

• By converting glucose into glycogen