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1 of 33© Boardworks Ltd 2008
2 of 33© Boardworks Ltd 2008 Releasing energy
3 of 33© Boardworks Ltd 2008 How is digested food used by the body? Glucose, from digested carbohydrates, is an important substance that contains stored chemical energy. When glucose reacts with oxygen, a lot of energy is released. In the body’s cells, glucose and oxygen react to release energy. Some of this is released as heat and the rest is used by the cells. What is the release of energy from glucose called? The body needs a constant supply of energy which comes from digested food.
4 of 33© Boardworks Ltd 2008 What is respiration? Respiration is the process that the body uses to release energy from digested food (glucose): This type of respiration is called aerobic respiration because energy is released in the presence of oxygen. How do the glucose and oxygen needed for aerobic respiration get to the all the body’s cells? oxygen carbon dioxide glucose ++ water ( energy) + from the digestive system from the respiratory system waste product (exhaled)
5 of 33© Boardworks Ltd 2008 Testing for the products of respiration
6 of 33© Boardworks Ltd 2008 How do cells get oxygen and glucose?
7 of 33© Boardworks Ltd 2008 The equation for aerobic respiration
8 of 33© Boardworks Ltd 2008 Respiration and combustion Burning is the reaction between a fuel and oxygen. This reaction is called combustion: During combustion, heat and light energy are released and carbon dioxide and water are also produced, so combustion is similar to respiration. The difference between combustion and respiration is that combustion is not a controlled reaction. Respiration is a controlled reaction that slowly releases energy from food in the body’s cells and the cells do not catch fire! fueloxygencarbon dioxidewater + +
9 of 33© Boardworks Ltd 2008 Respiration and combustion
10 of 33© Boardworks Ltd 2008 The circulatory system
11 of 33© Boardworks Ltd 2008 Circulation The dissolved food and oxygen needed for respiration are carried around the body by the circulatory system. Which part of the circulatory system actually carries dissolved food and oxygen to the body’s cells? The circulatory system includes the blood, blood vessels, the heart and the lungs.
12 of 33© Boardworks Ltd 2008 Blood
13 of 33© Boardworks Ltd 2008 Your beating heart The heart is made of very special muscle called cardiac muscle. This is because it has to keep beating for the whole of a person’s life! If you tried to do the same action repeatedly (like the heart does), your muscles would get tired and, after a while, stop working. For example, if you keep clenching and unclenching your hand, it will get tired and may even start to get cramp. Why is it important for respiration that the heart keeps beating?
14 of 33© Boardworks Ltd 2008 Ideas about circulation
15 of 33© Boardworks Ltd 2008 Measuring pulse The 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. 1.Hold out one hand with the palm facing up. 3. Press these fingers lightly on the underside of the other wrist, just under the thumb bone. 2. Put the index and middle fingers of your other hand together. To take your pulse:
16 of 33© Boardworks Ltd 2008 Different types of activity 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. During exercise, the pulse rises. This causes blood to be pumped around the body more quickly, which increases the amount of oxygen and glucose that can reach muscle cells. What happens to the pulse while someone is running? What happens to the pulse while someone is sleeping?
17 of 33© Boardworks Ltd 2008 The breathing system
18 of 33© Boardworks Ltd 2008 What is breathing? The breathing system is used by the body to get the oxygen needed for respiration. Breathing in and breathing out are separate processes in the body. It is also used to get rid of one of the waste products of respiration: the gas, carbon dioxide. Breathing in is called inhalation. When you inhale, you breathe air, including oxygen, into your lungs. Breathing out is called exhalation. When you exhale you breathe out the contents of your lungs and get rid of the waste gas carbon dioxide.
19 of 33© Boardworks Ltd 2008 Inhalation and exhalation
20 of 33© Boardworks Ltd 2008 The alveoli
21 of 33© Boardworks Ltd 2008 Gas exchange
22 of 33© Boardworks Ltd 2008 Comparing inhaled and exhaled air What are the differences between inhaled and exhaled air? How could you test for the differences between inhaled and exhaled air? Inhaled Air Exhaled Air Oxygen:21% Oxygen: 16% Carbon dioxide: 0.04% Carbon dioxide: 4% Water vapour: small amount Water vapour: large amount What are the main differences?
23 of 33© Boardworks Ltd 2008 Respiration
24 of 33© Boardworks Ltd 2008 Anaerobic respiration
25 of 33© Boardworks Ltd 2008 Aerobic and anaerobic respiration When the body is able to supply its cells with the oxygen and glucose that they need, it carries out aerobic respiration. When the body cannot supply the cells with the oxygen needed to break down glucose, then it has to carry out anaerobic respiration. Energy is released without oxygen: lactic acidglucoseenergy + oxygen carbon dioxide glucose ++ water( energy) +
26 of 33© Boardworks Ltd 2008 Not enough oxygen! When anaerobic respiration takes place, lactic acid is also produced. glucoselactic acidenergy + After exercise the body needs to remove the lactic acid before it causes damage to cells. Lactic acid builds up in the muscle cells and prevents the muscles doing their job. This is thought to cause fatigue and sometimes cramp.
27 of 33© Boardworks Ltd 2008 Oxygen debt The amount of oxygen needed to remove all the lactic acid after exercise is called an oxygen debt. oxygenwaterlactic acidcarbon dioxide ++ 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. Lactic acid is broken down by oxygen.
28 of 33© Boardworks Ltd 2008 How does running affect your pulse?
29 of 33© Boardworks Ltd 2008 Anaerobic respiration equations
30 of 33© Boardworks Ltd 2008 Summary activities
31 of 33© Boardworks Ltd 2008 Glossary
32 of 33© Boardworks Ltd 2008 Anagrams
33 of 33© Boardworks Ltd 2008 Multiple-choice quiz
© Boardworks Ltd of 20 © Boardworks Ltd of 26 KS3 Biology 8B Respiration.
Respiratory system Lesson 5 Respiration. Lungs Thorax Trachea Oxygen Bronchus Ribcage Alveoli Abdomen snulg xortah chatare goxeyn gicebra cnuhorbs laivole.
Respiratory system Lesson 4 Respiration. Lungs Thorax Trachea Oxygen Bronchus Ribcage Alveoli Abdomen snulg xortah chatare goxeyn gicebra cnuhorbs laivole.
1 of 9© Boardworks Ltd of 9© Boardworks Ltd 2016 The circulatory system.
© Boardworks Ltd A slide contains teacher’s notes wherever this icon is displayed - To access these notes go to ‘Notes Page View’ (PowerPoint 97)
1 of 8© Boardworks Ltd of 8© Boardworks Ltd 2011 How is digested food used by the body? Glucose, from digested carbohydrates, is an important.
© Boardworks Ltd 2003 When something burns, heat and light energy is released. This process will produce energy if there are 2 main ingredients. Energy.
08/07/2016Respiration W Richards Worthing High School Please note – the animation effects used in the “Circulation” slide only work in PowerPoint XP.
© Boardworks Ltd of 36 KS4 Biology Respiration.
What are the effects of getting too little oxygen? What is respiration?
© Boardworks Ltd of 36 Contents Respiration Anaerobic respiration Summary activities Releasing energy Rate of respiration Aerobic respiration.
COMPLETE THE SHEETS ON YOUR DESK - NOW. Gas exchange in an Alveoli.
© Boardworks Ltd of 29 Photosynthesis Respiration.
1 of 7© Boardworks Ltd of 7© Boardworks Ltd 2010 What is breathing? The body uses the respiratory system to get the oxygen needed for respiration.
Respiration is a chemical process in which energy is released from food substances. Respiration is a series of actions in which energy is released.
STARTER – wordsearch of key words Circulation Objective Be able to explain how the heart pumps blood around the body Outcomes Put the labels in the correct.
‘Hitting the Wall’ What is it? Why do you think it happens?
1 of 21© Boardworks Ltd 2011 Anaerobic Respiration.
Oxygen Transport System. What is the Oxygen Transport System? The Oxygen Transport System is made up of the system and the system. The aim of the.
© Boardworks Ltd of 28 The Respiratory System © Boardworks Ltd of 28 These icons indicate that teacher’s notes or useful web addresses are.
1 of 1© Boardworks Ltd 2014 Breathing. 2 of 7© Boardworks Ltd 2014 The exchange of gases Aerobic respiration is the process of releasing energy through.
© Boardworks Ltd of 28 Learning objectives © Boardworks Ltd of 28 Learning objectives The structures of the respiratory system and their functions.
© Boardworks Ltd of 30 The Effects of Exercise © Boardworks Ltd of 30 These icons indicate that teacher’s notes or useful web addresses are.
+ Anaerobic Respiration Noadswood Science, Anaerobic Respiration To know the equation for anaerobic respiration and how this is useful during.
Contents Respiration Waste products Aerobic respiration Anaerobic respiration What is respiration? An energy-making process Summary quiz.
THE BODY: OXYGEN TRANSPORT SYSTEM Park Mains High School PHYSICAL EDUCATION.
1 of 21© Boardworks Ltd 2011 Respiration. 2 of 21© Boardworks Ltd 2011 Releasing energy.
© Boardworks Ltd 2003 FOOD (GLUCOSE) OXYGEN + from digestive system from breathing system WATER CARBON DIOXIDE++ ENERGY USEFUL!waste product exhaled We.
Oxygen Transport System. Main aim of the system is to help you exercise. As you increase your oxygen intake during exercise you can participate and.
Respiration By the end of this lesson, I will be able to: Understand what respiration is Know the difference between aerobic and anaerobic respiration.
Effects of exercise Biology. A wee introduction…
Quiz Time!. What is the pulse rate a measure of?
Body in Action Changing Levels of Performance. Exercise and Fitness. When we start to exercise e.g. running or walking up a steep hill our pulse rate.
Introduction to Respiration Biology. What do we need energy for? You have 2 min as a group to act out different activities your body requires energy for!
Keynote Presentation by Jamie York The Respiratory System.
Cellular Respiration Cellular (in cell ) Respiration (with oxygen) The process of releasing energy by breaking down glucose and other food molecules in.
Stick it! Can you stick the target and word sheets for the next topic in please?
© Boardworks Ltd of 57 Respiration KS4 Biology.
ENERGY SYSTEMS OR PATHWAYS. EATING FOR ENERGY Energy for Exercise The food is broken down into soluble chemicals (e.g. glucose) by digestion in the.
Cellular respiration: is the process by which cells obtain energy from glucose. During cellular respiration cells break down glucose and other molecules.
Exercise & Respiration IGCSE Coordinated Science Topic 9.7 Animal Systems.
Anaerobic Respiration. All organisms need energy to survive. Animals obtain their energy from the food they eat, but plants can make their own food by.
Muscle Energy. ATP High Energy molecule Used for muscle movement (and many other things.
© Folens 2009 FOR EDEXCEL A healthy, active lifestyle and your respiratory system Respiration 1 Respiration.
Respiration happens continuously in most animal cells and some plant cells. The term “aerobic respiration” means “breathing” Respiration happens within.
MAKING CONNECTIONS LAB SACCONE POWERPOINT Pulse rate per minute (range of averages < >90 Number of students in this range Per 1.
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