Aerobic and Anaerobic respiration

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1. What is produced during anaerobic respiration?

  • amino acids and CO2 (+energy)
  • CO2 and water (+energy)
  • lactic acid (+energy)
  • lactic acid and water (+energy)
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2. What do the changes to breathing and heart rate during exercise cause?

  • Quicker rate of Gaseous exchange in lungs (so respiration can happen more quickly) and arteries dilate
  • Nerve impulses are sent to brain more quickly
  • Stomach digests food more quickly
  • Arteries constrict (stopping blood flowing away from muscles)

3. Which of these is NOT a use of the energy released in respiration?

  • Used to build up larger molecules from small molecules (e.g Proteins from amino acids)
  • Diffusion of Oxygen and CO2, and Osmosis
  • Maintain a constant body temperature (in animals)
  • Muscle contraction

4. Why does anaerobic respiration happen?

  • Muscles can't be supplied with Oxygen quickly enough
  • Water is being lost too quickly from sweat and breathing
  • So muscles can produce more than using Aerobic respiration

5. What is the only reactant during anaerobic respiration?

  • glucose
  • water
  • Carbon dioxide
  • Protein


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