Date post: | 27-Dec-2015 |
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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.