IGCSEBiology: Co-ordinated Sciences (Double Award)CIERevision Notes12. RespirationRespirationAerobic Respiration

Aerobic Respiration (CIE IGCSE Biology: Co-ordinated Sciences (Double Award))

Revision Note

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Respiration is a Chemical Reaction

  • Aerobic respiration requires oxygen and is defined as the chemical reactions in cells that use oxygen to break down nutrient molecules to release energy
  • It is the complete breakdown of glucose to release a relatively large amount of energy for use in cell processes
  • It produces carbon dioxide and water as well as releasing useful cellular energy

 

Word equation for aerobic respiration, IGCSE & GCSE Chemistry revision notesWord equation for aerobic respiration

Examiner Tip

Remember this equation is the same as the photosynthesis equation, only the other way around, so if you know one, you know the other one too!

Balanced Chemical Equation for Aerobic Respiration: Extended

Balanced equation for aerobic respiration, IGCSE & GCSE Chemistry revision notes

Balanced equation for aerobic respiration

 

Examiner Tip

There are usually 3 marks given for the aerobic respiration chemical equation in an exam:

  • one for getting the correct formula for glucose and oxygen
  • one for getting the correct formula for carbon dioxide and water
  • one for balancing the equation correctly

So make sure you can do all three to gain maximum marks!

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    Phil

    Author: Phil

    Expertise: Biology

    Phil has a BSc in Biochemistry from the University of Birmingham, followed by an MBA from Manchester Business School. He has 15 years of teaching and tutoring experience, teaching Biology in schools before becoming director of a growing tuition agency. He has also examined Biology for one of the leading UK exam boards. Phil has a particular passion for empowering students to overcome their fear of numbers in a scientific context.