Respiration is the chemical reaction that releases the energy our cells need to work. In this unit we look at the different types of respiration and look at how our cells get the reactants and get rid of the waste products of this critical reaction.

If you learn nothing else please remember: respiration and breathing ARE NOT THE SAME!

Specification links:

• Set 1 all of 4.4.2

• Set 2 and 3 all of 4.4.2

Task 2b: Make notes that:

• Describe the difference between breathing and respiration

• Name the organelle where respiration occurs

• Give the word and balanced symbol equation for aerobic respiration

• Explain why respiration is known as an exothermic reaction

• List the uses of the energy released in respiration

Task 2c: Answer the exam questions and self mark

Task 3b: Make notes that:

• Describe what happens to the following during exercise:

• Heart rate

• Breathing rate

• Breathing volume

• Temperature

• Amount of glycogen stored in our muscles

• List the benefits of exercise

• Answer the questions on slide 21 and mark using slide 22

Task 3c: Complete the progress quiz:

Task 4b:

• Describe when anaerobic respiration occurs

• Give the word and symbol equation for anaerobic respiration in animals.

• Describe the disadvantages of anaerobic respiration

• Describe how the body gets rid of lactic acid

• Define oxygen debt (set 1&2)

• Give the word equation for anaerobic respiration in plants and yeast

• List the uses of the products of fermentation

Task 4c: Answer the exam questions and self mark

Task 5e: Answer the exam questions and self mark:

Task 6c: Make a mind map or single page revision summary of this topic and put it in your revision folder. Use the specification to help you.

Specification links:

• Set 1 all of 4.4.2

• Set 2 and 3 all of 4.4.2

Task 7: Complete the quiz for your set to make sure you understand this unit.