B2 Respiration and Exercise 0.0 / 5 ? BiologyRespiration and exerciseGCSEEdexcel Created by: MissAlicia89Created on: 27-05-15 14:46 Define Respiration The process of breaking down glucose to release energy which occurs in every living cell 1 of 20 Word Equation for Aaerobic respiration Glucose + Oxygen = Carbon Dioxide + Water (+ Energy) 2 of 20 What does the circulatory system carry? Glucose, Oxygen, Carbon Dioxide 3 of 20 What are the smallest blood vessels? Why are they important? Capillaries, situated close by to every cell to supply them with glucose and oxygen and take away carbon dioxide 4 of 20 What is the process called whereby glucose, oxygen and carbon dioxide move between the cells and capillaries? Diffusion 5 of 20 Define Diffusion The gradual movement of particles from places of high concentration to low concentration 6 of 20 When cells respire what do they use and what do they produce? Use oxygen and glucose and produce carbon dioxide 7 of 20 What affects the rate of diffusion? The difference in concentration 8 of 20 The faster the rate of diffusion the bigger... the difference in concentration 9 of 20 Why do muscles need energy from respiration? To contract 10 of 20 During exercise, where does the need for more energy come from? Increased respiration 11 of 20 During respiration, why do we need to breathe more? To meet the oxygen demand of the cells and remove carbon dioxide more quickly 12 of 20 During vigorous exercise, how does your body meet the demand for oxygen? Anaerobic respiration 13 of 20 Cardiac output is the... Volume of the blood the heart pumps in one minute 14 of 20 Cardiac output = Heart rate x Stroke volume 15 of 20 Why does the body begin to use anaerobic respiration? What is the equation for this? Because there is not enough oxygen available. Glucose = Lactic Acid (+Energy) 16 of 20 During anaerobic respiration, explain where lactic acid is found and what it causes Builds up in the muscles causing pain and resulting in cramp. 17 of 20 The amount of oxygen debt which needs to be paid back is called... Excess post-exercise oxygen consumption (EPOC) 18 of 20 How can you measure breathing and heart rate? How can this be made more reliable? Counting breaths and taking the pulse. By doing this as a groups and plotting the average pulse rate. 19 of 20 What is respiration? The process by which energy breaks down glucose to release energy from food. 20 of 20
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