Year 11 Science SIEP - Cellular Respiration

The science behind our breathing and energy expenditure

BiologyCellular respiration
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Year 11 Science SIEP - Cellular Respiration

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The science behind our breathing and energy expenditure
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Slide Content
  1. Breathing

    Slide 2 - Breathing

    • The process of generating energy is called respiration.
    • The reason we need to breath oxygen into our body is because oxygen converts food molecules into chemical energy for our body to use
  2. Energy

    Slide 3 - Energy

    • Proteins
    • Carbohydrates
    • Fats
    • Simple Sugar (Glucose)
    • Chemical Energy (ATP)
    • Food
  3. Respiration: In Equation

    Slide 4 - Respiration: In Equation

    • Aerobic Respiration (Oxygen is present)
    • Glucose (Simple Sugar)
    • Energy (ATP – Small amount)
    • Lactic acid
    • Anaerobic Respiration (Oxygen is absent)
    • Oxygen (Breathing IN)
    • Energy (ATP – Large amount)
    • Carbon dioxide (Breathing OUT)
    • Water
    • Glucose (Simple Sugar)
    • Sore muscles
  4. Long Duration Exercises

    Slide 5 - Long Duration Exercises

    • Provide more oxygen to the muscles for converting glucose (simple sugar into ATP (chemical energy)
    • Breath quicker and harder during exercise
    • Heart pumps faster
    • Shortness of breath
    • ↑ Oxygen uptake
    • ↑ Nutrient uptake
  5. Summary

    Slide 8 - Summary

    • We need oxygen because we need oxygen to convert glucose (simple sugar) into ATP (chemical energy)
    • During exercise:
    • We need more energy
    • We need more oxygen to convert glucose into ATP
    • We breath heavier and our heart rate is faster
    • We can minimise heavy breathing and shortness of breath during exercise by doing cardio exercises such as treadmill, rowing and biking
  6. Respiration Quiz – Question 1

    Slide 10 - Respiration Quiz – Question 1

  7. Respiration Quiz – Question 2

    Slide 11 - Respiration Quiz – Question 2

  8. Respiration Quiz – Question 3

    Slide 12 - Respiration Quiz – Question 3

  9. Respiration Quiz – Questions 4

    Slide 13 - Respiration Quiz – Questions 4

  10. Respiration Quiz – Question 5

    Slide 14 - Respiration Quiz – Question 5