RESPIRATION AND EXERCISE Final Exam Questions and Graded
Answers, 100 % Guaranteed
What happens to heart rate and breathing rate during vigorous activity? - ✔✔They increase
to supply muscles with more oxygen and glucose for aerobic respiration.
What initiates anaerobic respiration in muscle cells? - ✔✔A lack of sufficient oxygen during
vigorous activity.
What is a byproduct of anaerobic respiration in animals? - ✔✔Lactic acid.
What is oxygen debt? - ✔✔The amount of extra oxygen needed after exercise to react with
lactic acid and remove it from cells.
Where is lactic acid broken down after exercise? - ✔✔In the liver.
What is metabolism? - ✔✔The sum of all chemical reactions in a cell or body, controlled by
enzymes.
What are the products of aerobic respiration? - ✔✔Energy, carbon dioxide, and water.
What is the role of enzymes in metabolism? - ✔✔They control chemical reactions and many
require a transfer of energy.
What are some processes included in metabolism? - ✔✔Conversion of glucose to starch,
formation of lipids, synthesis of proteins, and breakdown of excess proteins into urea.
What is the significance of deep breathing after exercise? - ✔✔It helps to 'pay back' the
oxygen debt.
Answers, 100 % Guaranteed
What happens to heart rate and breathing rate during vigorous activity? - ✔✔They increase
to supply muscles with more oxygen and glucose for aerobic respiration.
What initiates anaerobic respiration in muscle cells? - ✔✔A lack of sufficient oxygen during
vigorous activity.
What is a byproduct of anaerobic respiration in animals? - ✔✔Lactic acid.
What is oxygen debt? - ✔✔The amount of extra oxygen needed after exercise to react with
lactic acid and remove it from cells.
Where is lactic acid broken down after exercise? - ✔✔In the liver.
What is metabolism? - ✔✔The sum of all chemical reactions in a cell or body, controlled by
enzymes.
What are the products of aerobic respiration? - ✔✔Energy, carbon dioxide, and water.
What is the role of enzymes in metabolism? - ✔✔They control chemical reactions and many
require a transfer of energy.
What are some processes included in metabolism? - ✔✔Conversion of glucose to starch,
formation of lipids, synthesis of proteins, and breakdown of excess proteins into urea.
What is the significance of deep breathing after exercise? - ✔✔It helps to 'pay back' the
oxygen debt.
