Your SlideShare is downloading. ×
Respiration
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

Respiration

4,471
views

Published on

Published in: Technology, Health & Medicine

1 Comment
7 Likes
Statistics
Notes
  • i seen this one before but it was on a different powerpoint but u still did well, well done
       Reply 
    Are you sure you want to  Yes  No
    Your message goes here
No Downloads
Views
Total Views
4,471
On Slideshare
0
From Embeds
0
Number of Embeds
1
Actions
Shares
0
Downloads
323
Comments
1
Likes
7
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide
  • Boardworks KS3 Science 2008 Respiration
  • Boardworks KS3 Science 2008 Respiration
  • Boardworks KS3 Science 2008 Respiration
  • Boardworks KS3 Science 2008 Respiration Teacher notes This could be a good place to make sure pupils understand that respiration is not the same as breathing and ventilation.
  • Boardworks KS3 Science 2008 Respiration Teacher notes If the limewater turns cloudy this indicates that carbon dioxide is present. If students carry out the experiment with limewater it’s important that the safety issues involved with the activity are made clear.
  • Boardworks KS3 Science 2008 Respiration
  • Boardworks KS3 Science 2008 Respiration
  • Boardworks KS3 Science 2008 Respiration
  • Boardworks KS3 Science 2008 Respiration
  • Boardworks KS3 Science 2008 Respiration
  • Boardworks KS3 Science 2008 Respiration Teacher notes Respiration Worksheet 1 accompanies this slide.
  • Boardworks KS3 Science 2008 Respiration
  • Boardworks KS3 Science 2008 Respiration
  • Boardworks KS3 Science 2008 Respiration
  • Boardworks KS3 Science 2008 Respiration Photo credit: Jupiterimages Corporation Teacher notes Students could be reminded here not to use their thumb to take a pulse rate, as the thumb itself has a pulse. Taking a pulse in this way is a technique is thought to have been first described by Galen.
  • Boardworks KS3 Science 2008 Respiration Photo credit: Jupiterimages Corporation Teacher notes Respiration worksheet 2 accompanies this slide. This worksheet involves a simple practical and drawing a graph of results. The practical could be carried out in a sports hall or outside of the school building.
  • Boardworks KS3 Science 2008 Respiration
  • Boardworks KS3 Science 2008 Respiration
  • Boardworks KS3 Science 2008 Respiration
  • Boardworks KS3 Science 2008 Respiration
  • Boardworks KS3 Science 2008 Respiration
  • Boardworks KS3 Science 2008 Respiration
  • Boardworks KS3 Science 2008 Respiration
  • Boardworks KS3 Science 2008 Respiration Teacher notes This section on anaerobic respiration could be linked across the curriculum with PE.
  • Boardworks KS3 Science 2008 Respiration Teachers notes This may be a good place to make sure the students understand that anaerobic respiration does not replace aerobic respiration. Only cells that require more energy, such as muscle cells, will carry out anaerobic respiration if there’s not enough oxygen present.
  • Boardworks KS3 Science 2008 Respiration Photo credit: Jupiterimages Corporation
  • Boardworks KS3 Science 2008 Respiration Photo credit: Jupiterimages Corporation Teachers notes Respiration Worksheet 3 accompanies this slide.
  • Boardworks KS3 Science 2008 Respiration
  • Boardworks KS3 Science 2008 Respiration
  • Boardworks KS3 Science 2008 Respiration
  • Boardworks KS3 Science 2008 Respiration aerobic – The type of respiration that occurs with oxygen. alveoli – Tiny air sacs in the lungs where gas exchange takes place. anaerobic – The type of respiration that occurs without oxygen. combustion – The reaction between fuel and oxygen. exhalation – The process of breathing out. glucose – A type of sugar that the body releases energy from during respiration. inhalation – The process of breathing in. oxygen debt – The amount of oxygen needed to remove lactic acid after exercise. respiration – The process that the body uses to release energy from digested food.
  • Boardworks KS3 Science 2008 Respiration
  • Boardworks KS3 Science 2008 Respiration
  • Transcript

    • 1. 1 of 33 © Boardworks Ltd 2008
    • 2. Releasing energy2 of 33 © Boardworks Ltd 2008
    • 3. How is digested food used by the body?The body needs a constant supply of energy which comesfrom digested food.Glucose, from digested carbohydrates, is an importantsubstance that contains stored chemical energy.When glucose reacts with oxygen, a lot of energy isreleased.In the body’s cells, glucose and oxygen react to releaseenergy. Some of this is released as heat and the rest isused by the cells.What is the release of energy from glucose called? 3 of 33 © Boardworks Ltd 2008
    • 4. What is respiration?Respiration is the process that the body uses to releaseenergy from digested food (glucose): carbonglucose + oxygen ² dioxide + water ( + energy)from the from the waste wastedigestive respiratory product product system system (exhaled) (exhaled)This type of respiration is called aerobic respiration becauseenergy is released in the presence of oxygen.How do the glucose and oxygen needed for aerobicrespiration get to the all the body’s cells? 4 of 33 © Boardworks Ltd 2008
    • 5. Testing for the products of respiration 5 of 33 © Boardworks Ltd 2008
    • 6. How do cells get oxygen and glucose? 6 of 33 © Boardworks Ltd 2008
    • 7. The equation for aerobic respiration 7 of 33 © Boardworks Ltd 2008
    • 8. Respiration and combustionBurning is the reaction between a fuel and oxygen. Thisreaction is called combustion: fuel + oxygen ² carbon dioxide + waterDuring combustion, heat and light energy are released andcarbon dioxide and water are also produced, socombustion is similar to respiration.The difference between combustion and respiration is thatcombustion is not a controlled reaction. Respiration is acontrolled reaction that slowly releases energy from food inthe body’s cells and the cells do not catch fire! 8 of 33 © Boardworks Ltd 2008
    • 9. Respiration and combustion 9 of 33 © Boardworks Ltd 2008
    • 10. The circulatory system10 of 33 © Boardworks Ltd 2008
    • 11. CirculationThe dissolved food andoxygen needed for respirationare carried around the bodyby the circulatory system.The circulatory systemincludes the blood, bloodvessels, the heart andthe lungs.Which part of thecirculatory system actuallycarries dissolved food andoxygen to the body’s cells? 11 of 33 © Boardworks Ltd 2008
    • 12. Blood 12 of 33 © Boardworks Ltd 2008
    • 13. Your beating heartThe heart is made of very specialmuscle called cardiac muscle.This is because it has to keep beatingfor the whole of a person’s life!If you tried to do the same actionrepeatedly (like the heart does),your muscles would get tiredand, after a while, stop working.For example, if you keep clenching and unclenching yourhand, it will get tired and may even start to get cramp.Why is it important for respiration that the heart keepsbeating? 13 of 33 © Boardworks Ltd 2008
    • 14. Ideas about circulation 14 of 33 © Boardworks Ltd 2008
    • 15. Measuring pulseThe heart pumps blood around the body in the blood vessels.Each time it pumps it causes the blood vessels to throb.This is called a pulse.To take your pulse:• Hold out one hand with the palm facing up.2. Put the index and middle fingers of your other hand together.3. Press these fingers lightly on the underside of the other wrist, just under the thumb bone. 15 of 33 © Boardworks Ltd 2008
    • 16. Different types of activityWhat happens to the pulse while someone is running?During exercise, the pulse rises. This causesblood to be pumped around the body morequickly, which increases the amount of oxygenand glucose that can reach muscle cells. What happens to the pulse while someone is sleeping? During sleep, the pulse falls. This causes blood to be pumped around the body more slowly. This means that oxygen and glucose take longer to reach muscle cells. 16 of 33 © Boardworks Ltd 2008
    • 17. The breathing system17 of 33 © Boardworks Ltd 2008
    • 18. What is breathing?The breathing system is used by the bodyto get the oxygen needed for respiration.It is also used to get rid of one ofthe waste products of respiration:the gas, carbon dioxide.Breathing in and breathing out areseparate processes in the body.Breathing in is called inhalation. When you inhale, youbreathe air, including oxygen, into your lungs.Breathing out is called exhalation. When you exhale youbreathe out the contents of your lungs and get rid of thewaste gas carbon dioxide. 18 of 33 © Boardworks Ltd 2008
    • 19. Inhalation and exhalation 19 of 33 © Boardworks Ltd 2008
    • 20. The alveoli 20 of 33 © Boardworks Ltd 2008
    • 21. Gas exchange 21 of 33 © Boardworks Ltd 2008
    • 22. Comparing inhaled and exhaled airWhat are the differences between inhaled and exhaled air? Inhaled Air Exhaled Air Oxygen: 21% Oxygen: 16% Carbon dioxide: 0.04% Carbon dioxide: 4% Water vapour: Water vapour: small amount large amountWhat are the main differences?How could you test for the differences between inhaledand exhaled air? 22 of 33 © Boardworks Ltd 2008
    • 23. Respiration 23 of 33 © Boardworks Ltd 2008
    • 24. Anaerobic respiration24 of 33 © Boardworks Ltd 2008
    • 25. Aerobic and anaerobic respirationWhen the body is able to supply its cells with the oxygenand glucose that they need, it carries out aerobicrespiration. carbonglucose + oxygen ² dioxide + water ( + energy)When the body cannot supply the cells with the oxygenneeded to break down glucose, then it has to carry outanaerobic respiration. Energy is released without oxygen: glucose ² lactic acid + energy 25 of 33 © Boardworks Ltd 2008
    • 26. Not enough oxygen! glucose ² lactic acid + energyWhen anaerobic respiration takes place, lactic acidis also produced.Lactic acid builds up in the musclecells and prevents the muscles doingtheir job. This is thought to causefatigue and sometimes cramp.After exercise the body needs toremove the lactic acid before itcauses damage to cells. 26 of 33 © Boardworks Ltd 2008
    • 27. Oxygen debtLactic acid is broken down by oxygen. lactic acid + oxygen ² carbon dioxide + water After activity that has lead to anaerobic respiration, the person involved breathes heavily and their heart rate remains high to supply the body with the oxygen it needs. The amount of oxygen needed to remove all the lactic acid after exercise is called an oxygen debt. 27 of 33 © Boardworks Ltd 2008
    • 28. How does running affect your pulse? 28 of 33 © Boardworks Ltd 2008
    • 29. Anaerobic respiration equations 29 of 33 © Boardworks Ltd 2008
    • 30. Summary activities30 of 33 © Boardworks Ltd 2008
    • 31. Glossary 31 of 33 © Boardworks Ltd 2008
    • 32. Anagrams 32 of 33 © Boardworks Ltd 2008
    • 33. Multiple-choice quiz 33 of 33 © Boardworks Ltd 2008

    ×