What is respiration?

What is ventilation?

What is the difference between respiration and breathing?

Respiration• explain how ventilation provides oxygen for aerobic respiration

which releases energy for work • explain how glucose and oxygen diffuse from capillaries into

respiring cells, and how carbon dioxide diffuses from respiring cells into capillaries

• explain why heart rate and breathing rate increase with exercise and interpret data on these measurements

• explain why respiration is increased in exercising muscles and why diffusion of oxygen and carbon dioxide at the lung surface and muscle cells is increased

• explain why during vigorous exercise, muscle cells may not receive sufficient oxygen for their energy requirements

• describe that glucose is changed to lactic acid and energy is released, during anaerobic respiration

• explain why extra oxygen is needed to remove the lactic acid that causes cramp (oxygen debt)

Respiration• What are the equations for respiration?

• Where do the raw materials come from?

How does circulation

contribute to respiration?

What is diffusion?

• Why does diffusion happen?

• What factors affect the rate of diffusion?

How do the raw materials move around the body?

• Use the idea of diffusion to explain how

Where energy is used in the body

Variables

Independent Dependant Control

How can you ensure:

• Reliability

• Validity

What is the effect of exercise on Heart Rate & Breathing Rate?

Resting

(basal or baseline)

Immediately after exercise

2 mins after exercise

4 mins after exercise

Heart rate

Breathing rate

What do your results suggest?

• Explain your conclusion using the data you have gathered.

Anaerobic and aerobic exercise

• What is the difference?

• What is the equation for anaerobic respiration?

• Explain oxygen debt.

Home work

• For this week and next weeks homework task I would like you to research and write an essay of about 500 words on the title below (Not to be plagiarised from the internet).

• Title: The role of fermentation and protein synthesis in the production of insulin.

• To be handed in Friday 8th May.