Biology - 0610 CIE

Anaerobic Respiration (continued)

Muhtasari

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.

Malengo

  1. [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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Maelezo ya Somo

During vigorous exercise muscles respire anaerobically and produce lactic acid, creating an oxygen debt. The body must remove this lactic acid afterwards, and the way it does so explains the panting and racing heart you feel after exercise. This is a favourite extended-tier exam topic because it links respiration, circulation and the liver.

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Tathmini ya Somo

Hongera kwa kukamilisha somo la Anaerobic Respiration (continued). Sasa kwa kuwa umechunguza dhana na mawazo muhimu, ni wakati wa kuweka ujuzi wako kwa mtihani. Sehemu hii inatoa mazoezi mbalimbali maswali yaliyoundwa ili kuimarisha uelewaji wako na kukusaidia kupima ufahamu wako wa nyenzo.

Utakutana na mchanganyiko wa aina mbalimbali za maswali, ikiwemo maswali ya kuchagua jibu sahihi, maswali ya majibu mafupi, na maswali ya insha. Kila swali limebuniwa kwa umakini ili kupima vipengele tofauti vya maarifa yako na ujuzi wa kufikiri kwa makini.

Tumia sehemu hii ya tathmini kama fursa ya kuimarisha uelewa wako wa mada na kubaini maeneo yoyote ambapo unaweza kuhitaji kusoma zaidi. Usikatishwe tamaa na changamoto zozote utakazokutana nazo; badala yake, zitazame kama fursa za kukua na kuboresha.

  1. After vigorous exercise, lactic acid is carried in the blood to the: A. lungs B. kidneys C. liver D. muscles Answer: C
  2. 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
  3. 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
  4. Deeper and faster breathing after exercise supplies extra: A. glucose B. carbon dioxide C. oxygen D. lactic acid Answer: C
  5. 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

Fanyia kazi maswali haya kwenye programu

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Vitabu Vinavyopendekezwa

Cambridge IGCSE Biology Coursebook
Cambridge IGCSE Biology Coursebook
Manukuu: Fifth edition
Mchapishaji: Cambridge University Press
Mwaka: 2021
ISBN: 978-1-108-74880-2
Maelezo: Endorsed coursebook with full coverage of the 0610/0970 syllabus, practical investigations and exam-style questions.
Cambridge IGCSE Biology
Cambridge IGCSE Biology
Manukuu: Fourth edition
Mchapishaji: Hodder Education
Mwaka: 2021
ISBN: 978-1-5104-7864-0
Maelezo: Endorsed textbook covering the Core and Supplement content with clear biological diagrams and questions.

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Ungependa kufanya mazoezi ya maswali ya majaribio kuhusu Anaerobic Respiration (continued)? Pakua programu ya Green Bridge CBT ili kupata maswali ya majaribio na tathmini kamili za mazoezi kuhusu mada hii.

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