Chapter 7 Quiz on Cellular Respiration

What is the primary focus of Chapter 7 in the textbook on cellular respiration?

• Energy storage mechanisms

• Cellular respiration

• Photosynthesis

• Protein synthesis

What process do cells use to extract energy from food to generate ATP?

• Protein synthesis

• Glucose catabolism

• Lipid storage

• Photosynthesis

What is closely linked to the transfer of energy in metabolic pathways?

• Movement of protons

• Synthesis of glucose

• Movement of electrons

• Breakdown of amino acids

What does the incremental transfer of energy in cells allow?

• Creation of carbon dioxide

• Storage of food as fat

• Transfer of food energy in small packages

• Release of oxygen

What are redox reactions primarily involved in?

• Transfer of protons from one molecule to another

• Transfer of neutrons between molecules

• Transfer of electrons from one molecule to another

• Transfer of energy in the form of heat between molecules

What role do molecules that can donate electrons play in a redox reaction?

• They act as oxidizing agents

• They act as catalysts

• They act as reducing agents

• They act as inhibitors

What happens to molecules that gain electrons in a redox reaction?

• They are oxidized

• They are reduced

• They become inert

• They disintegrate

Which of the following best describes the role of molecules that accept electrons in a redox reaction?

• They are reduced

• They are oxidized

• They act as catalysts

• They act as inhibitors

What is the role of NAD in redox reactions?

• It donates electrons only

• It accepts electrons only

• It can both donate and accept electrons

• It is not involved in electron transfer

Which of the following is NOT true about NADH compared to NAD+?

• NADH carries more electrons

• NADH carries fewer protons

• NADH is the reduced form

• NADH carries more protons