Anaerobic Respiration (continued)
Overview
When you finish a hard sprint you do not stop panting straight away. Your heart pounds and your breathing stays fast and deep for a while. This is your body paying back the oxygen debt it built up while your muscles were respiring without enough oxygen.
In this lesson you will follow exactly how the body removes the oxygen debt after vigorous exercise: how the lactic acid travels from the muscles to the liver, why breathing and heart rate stay high, and how the lactic acid is finally broken down. This is an extended-tier topic worth knowing step by step.
Objectives
- [Supplement] Outline how the oxygen debt is removed after exercise, limited to: (a) continuation of fast heart rate to transport lactic acid in the blood from the muscles to the liver (b) continuation of deeper and faster breathing to supply oxygen for aerobic respiration of lactic acid (c) aerobic respiration of lactic acid in the liver
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Lesson Evaluation
Congratulations on completing the lesson on Anaerobic Respiration (continued). Now that youve explored the key concepts and ideas, its time to put your knowledge to the test. This section offers a variety of practice questions designed to reinforce your understanding and help you gauge your grasp of the material.
You will encounter a mix of question types, including multiple-choice questions, short answer questions, and essay questions. Each question is thoughtfully crafted to assess different aspects of your knowledge and critical thinking skills.
Use this evaluation section as an opportunity to reinforce your understanding of the topic and to identify any areas where you may need additional study. Don't be discouraged by any challenges you encounter; instead, view them as opportunities for growth and improvement.
- After vigorous exercise, lactic acid is carried in the blood to the: A. lungs B. kidneys C. liver D. muscles Answer: C
- The continued fast heart rate after exercise mainly serves to: A. break down lactic acid B. transport lactic acid to the liver C. produce more lactic acid D. cool the body Answer: B
- Lactic acid is finally removed by being: A. respired aerobically in the liver B. stored in the muscles C. excreted by the kidneys D. turned into glucose in the lungs Answer: A
- Deeper and faster breathing after exercise supplies extra: A. glucose B. carbon dioxide C. oxygen D. lactic acid Answer: C
- The oxygen debt is the extra oxygen needed to: A. make lactic acid B. break down lactic acid C. store glucose D. cool the muscles Answer: B
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