respiration & breathing respiration what is respiration? it is the release of energy from food...
TRANSCRIPT
![Page 1: Respiration & Breathing Respiration What is respiration? It is the release of energy from food substances in living cells](https://reader035.vdocuments.us/reader035/viewer/2022062320/56649cc15503460f9498914c/html5/thumbnails/1.jpg)
Respiration & Breathing
![Page 2: Respiration & Breathing Respiration What is respiration? It is the release of energy from food substances in living cells](https://reader035.vdocuments.us/reader035/viewer/2022062320/56649cc15503460f9498914c/html5/thumbnails/2.jpg)
Respiration
What is respiration?
It is the release of energy from food
substances in living cells.
![Page 3: Respiration & Breathing Respiration What is respiration? It is the release of energy from food substances in living cells](https://reader035.vdocuments.us/reader035/viewer/2022062320/56649cc15503460f9498914c/html5/thumbnails/3.jpg)
respirationSugar is oxidised to release energy, carbon
dioxide and water are formed.Equation: sugar + oxygen energy + carbon dioxide + water
(i) sugar comes from food(ii) oxygen comes from air(iii) carbon dioxide is excreted thru’ lungs(iv) energy is used for life processes or lost
as heat (keeps body warm).
![Page 4: Respiration & Breathing Respiration What is respiration? It is the release of energy from food substances in living cells](https://reader035.vdocuments.us/reader035/viewer/2022062320/56649cc15503460f9498914c/html5/thumbnails/4.jpg)
Breathing system
To move air in and out of lungs for gaseous exchange.
Gaseous exchange
Diffusion of oxygen from lungs into blood.
Movement of carbon dioxide from blood into lungs.
![Page 5: Respiration & Breathing Respiration What is respiration? It is the release of energy from food substances in living cells](https://reader035.vdocuments.us/reader035/viewer/2022062320/56649cc15503460f9498914c/html5/thumbnails/5.jpg)
Respiration- Wee SC
![Page 6: Respiration & Breathing Respiration What is respiration? It is the release of energy from food substances in living cells](https://reader035.vdocuments.us/reader035/viewer/2022062320/56649cc15503460f9498914c/html5/thumbnails/6.jpg)
Breathing System - Nasal Passage
nasal cavity
voice box
windpipe
epiglottis
![Page 7: Respiration & Breathing Respiration What is respiration? It is the release of energy from food substances in living cells](https://reader035.vdocuments.us/reader035/viewer/2022062320/56649cc15503460f9498914c/html5/thumbnails/7.jpg)
Path taken by air to lungs.
1 Air passes through nasal passages, wind pipes and alveoli.
2 Wind pipes are kept open by cartilage rings.
3 Gaseous exchange takes place in alveoli.
![Page 8: Respiration & Breathing Respiration What is respiration? It is the release of energy from food substances in living cells](https://reader035.vdocuments.us/reader035/viewer/2022062320/56649cc15503460f9498914c/html5/thumbnails/8.jpg)
Air Sacs - Alveoli
![Page 9: Respiration & Breathing Respiration What is respiration? It is the release of energy from food substances in living cells](https://reader035.vdocuments.us/reader035/viewer/2022062320/56649cc15503460f9498914c/html5/thumbnails/9.jpg)
Respiration- Wee SC
The Rib cage
How air enters and leaves the lungs
Breathing
1 Chest expands to inhale
2 Chest contracts to exhale
Is breathing voluntary?
![Page 10: Respiration & Breathing Respiration What is respiration? It is the release of energy from food substances in living cells](https://reader035.vdocuments.us/reader035/viewer/2022062320/56649cc15503460f9498914c/html5/thumbnails/10.jpg)
Inhalation
![Page 11: Respiration & Breathing Respiration What is respiration? It is the release of energy from food substances in living cells](https://reader035.vdocuments.us/reader035/viewer/2022062320/56649cc15503460f9498914c/html5/thumbnails/11.jpg)
Exhalation
![Page 12: Respiration & Breathing Respiration What is respiration? It is the release of energy from food substances in living cells](https://reader035.vdocuments.us/reader035/viewer/2022062320/56649cc15503460f9498914c/html5/thumbnails/12.jpg)
The Rib Cage The Bell jar
Compare and Contrast
![Page 13: Respiration & Breathing Respiration What is respiration? It is the release of energy from food substances in living cells](https://reader035.vdocuments.us/reader035/viewer/2022062320/56649cc15503460f9498914c/html5/thumbnails/13.jpg)
Composition of air in the lungs
Gas Percentage ininhaled air
Percentage inexhaled air
Oxygen 21% 16%
Carbon dioxide 0.04% 4%
Nitrogen 79% 79%
Water vapour a little a lot
![Page 14: Respiration & Breathing Respiration What is respiration? It is the release of energy from food substances in living cells](https://reader035.vdocuments.us/reader035/viewer/2022062320/56649cc15503460f9498914c/html5/thumbnails/14.jpg)
Respiration- Wee SC
Experiment to show that exhaled air contains
Carbon Dioxide
![Page 15: Respiration & Breathing Respiration What is respiration? It is the release of energy from food substances in living cells](https://reader035.vdocuments.us/reader035/viewer/2022062320/56649cc15503460f9498914c/html5/thumbnails/15.jpg)
Respiration- Wee SC
Indicator used to test for presence of Carbon Dioxide
calcium hydroxide (lime water)
![Page 16: Respiration & Breathing Respiration What is respiration? It is the release of energy from food substances in living cells](https://reader035.vdocuments.us/reader035/viewer/2022062320/56649cc15503460f9498914c/html5/thumbnails/16.jpg)
To test for presence of Carbon dioxide in Expired air
![Page 17: Respiration & Breathing Respiration What is respiration? It is the release of energy from food substances in living cells](https://reader035.vdocuments.us/reader035/viewer/2022062320/56649cc15503460f9498914c/html5/thumbnails/17.jpg)
Respiration- Wee SC
Gaseous exchange in alveoli
![Page 18: Respiration & Breathing Respiration What is respiration? It is the release of energy from food substances in living cells](https://reader035.vdocuments.us/reader035/viewer/2022062320/56649cc15503460f9498914c/html5/thumbnails/18.jpg)
Pulmonary Circulation
![Page 19: Respiration & Breathing Respiration What is respiration? It is the release of energy from food substances in living cells](https://reader035.vdocuments.us/reader035/viewer/2022062320/56649cc15503460f9498914c/html5/thumbnails/19.jpg)
Respiratory System
![Page 20: Respiration & Breathing Respiration What is respiration? It is the release of energy from food substances in living cells](https://reader035.vdocuments.us/reader035/viewer/2022062320/56649cc15503460f9498914c/html5/thumbnails/20.jpg)
Air Sacs
![Page 21: Respiration & Breathing Respiration What is respiration? It is the release of energy from food substances in living cells](https://reader035.vdocuments.us/reader035/viewer/2022062320/56649cc15503460f9498914c/html5/thumbnails/21.jpg)
Respiration- Wee SC
Gaseous Exchange
![Page 22: Respiration & Breathing Respiration What is respiration? It is the release of energy from food substances in living cells](https://reader035.vdocuments.us/reader035/viewer/2022062320/56649cc15503460f9498914c/html5/thumbnails/22.jpg)
Respiratory System
Return
![Page 23: Respiration & Breathing Respiration What is respiration? It is the release of energy from food substances in living cells](https://reader035.vdocuments.us/reader035/viewer/2022062320/56649cc15503460f9498914c/html5/thumbnails/23.jpg)
Respiration- Wee SC
Exercise- Breathing Hard
![Page 24: Respiration & Breathing Respiration What is respiration? It is the release of energy from food substances in living cells](https://reader035.vdocuments.us/reader035/viewer/2022062320/56649cc15503460f9498914c/html5/thumbnails/24.jpg)
Respiration- Wee SC
Recovery period
![Page 25: Respiration & Breathing Respiration What is respiration? It is the release of energy from food substances in living cells](https://reader035.vdocuments.us/reader035/viewer/2022062320/56649cc15503460f9498914c/html5/thumbnails/25.jpg)
Respiration- Wee SC
What is energy needed for?
• Animals - for movement, sending messagesthrough nerves, transport of food, keeping warm.
• Plants - for taking up minerals from soil, openingand closing of stomata, and transport of food.
• All organisms - for growth, cell division, andmoving molecules against a concentration gradient
Energy
![Page 26: Respiration & Breathing Respiration What is respiration? It is the release of energy from food substances in living cells](https://reader035.vdocuments.us/reader035/viewer/2022062320/56649cc15503460f9498914c/html5/thumbnails/26.jpg)
Respiration- Wee SC
Respiration in animal and plant
![Page 27: Respiration & Breathing Respiration What is respiration? It is the release of energy from food substances in living cells](https://reader035.vdocuments.us/reader035/viewer/2022062320/56649cc15503460f9498914c/html5/thumbnails/27.jpg)
Gills of fish Fish breathe with gills.
Gills are feather-like structures with a rich supply of blood vessels.
Gills are found under the gill covers of fish.
Gillcover
![Page 28: Respiration & Breathing Respiration What is respiration? It is the release of energy from food substances in living cells](https://reader035.vdocuments.us/reader035/viewer/2022062320/56649cc15503460f9498914c/html5/thumbnails/28.jpg)
Water entersthe mouth of the fish …
How a fish breathes in …How a fish breathes in …
![Page 29: Respiration & Breathing Respiration What is respiration? It is the release of energy from food substances in living cells](https://reader035.vdocuments.us/reader035/viewer/2022062320/56649cc15503460f9498914c/html5/thumbnails/29.jpg)
Water entersthe mouth of the fish …
… and flows over the gills.
Oxygen passes through the walls of the blood vessels and into the blood.
How a fish breathes in …How a fish breathes in …
Gills
![Page 30: Respiration & Breathing Respiration What is respiration? It is the release of energy from food substances in living cells](https://reader035.vdocuments.us/reader035/viewer/2022062320/56649cc15503460f9498914c/html5/thumbnails/30.jpg)
Carbon dioxide passesthrough the wallsof the blood vesselsand dissolves in the water.
How a fish breathes out …How a fish breathes out …
![Page 31: Respiration & Breathing Respiration What is respiration? It is the release of energy from food substances in living cells](https://reader035.vdocuments.us/reader035/viewer/2022062320/56649cc15503460f9498914c/html5/thumbnails/31.jpg)
Water with dissolved carbon dioxide flows out from under the gill cover.
Carbon dioxide passesthrough the wallsof the blood vesselsand dissolves in the water.
How a fish breathes out …How a fish breathes out …
![Page 32: Respiration & Breathing Respiration What is respiration? It is the release of energy from food substances in living cells](https://reader035.vdocuments.us/reader035/viewer/2022062320/56649cc15503460f9498914c/html5/thumbnails/32.jpg)
… through special nostrils called blowholes on top of their heads.
Dolphins and whales breathe …
blowhole
blowhole
![Page 33: Respiration & Breathing Respiration What is respiration? It is the release of energy from food substances in living cells](https://reader035.vdocuments.us/reader035/viewer/2022062320/56649cc15503460f9498914c/html5/thumbnails/33.jpg)
How do different animals breathe? Lungs eg. Man, whale, seal, bat, snake, dog, cow Moist skin eg. Frogs, toads, salamander, earthworm Gills eg. Fish, tadpole, mudskipper Breathing tube eg. Wriggler, water stick insect Breathing holes eg. Ant, dragonfly
![Page 34: Respiration & Breathing Respiration What is respiration? It is the release of energy from food substances in living cells](https://reader035.vdocuments.us/reader035/viewer/2022062320/56649cc15503460f9498914c/html5/thumbnails/34.jpg)
My Pals are Here! Science 4B © 2003 Times Media Private Limited
Respiratory System in Plants
underside of a leafstoma
• Plants exchange gases with their surroundings through the stoma.
You are reminded that under the Copyright Act, it is an offence to reproduce or copy any part of this presentation without permission from Times Media Private Limited.
![Page 35: Respiration & Breathing Respiration What is respiration? It is the release of energy from food substances in living cells](https://reader035.vdocuments.us/reader035/viewer/2022062320/56649cc15503460f9498914c/html5/thumbnails/35.jpg)
At nightAt night
oxygen
carbon dioxide
During respiration
oxygencarbon dioxide
During photosynthesis
oxygen
carbon dioxide
During respiration
In the dayIn the day
You are reminded that under the Copyright Act, it is an offence to reproduce or copy any part of this presentation without permission from Times Media Private Limited.My Pals are Here! Science 4B My Pals are Here! Science 4B © 2003 Times Media Private Limited© 2003 Times Media Private Limited
![Page 36: Respiration & Breathing Respiration What is respiration? It is the release of energy from food substances in living cells](https://reader035.vdocuments.us/reader035/viewer/2022062320/56649cc15503460f9498914c/html5/thumbnails/36.jpg)
Respiration- Wee SC
Which is faster?What does it depend on?
Respiration and Photosynthesis