Lesson Respiration Science Differentiation in action Respiration The















- Slides: 15
Lesson: Respiration
Science Differentiation in action Respiration - The release of energy from food. ENERGY Aerobic respiration requires oxygen.
Science Differentiation in action Our digestive system breaks down food so it can be transported in the blood to all our cells.
Science Differentiation in action Our respiratory system supplies our cells with oxygen for respiration. This helps us to get energy from food.
Science Differentiation in action What are the products of aerobic respiration? food + oxygen = ENERGY + water vapour + carbon dioxide
Science Differentiation in action How could we show the products of aerobic respiration? Water vapour Woodlice + cobalt chloride paper Carbon dioxide Woodlice + limewater Energy Peas and a thermometer Can you think of other ways to show these products?
Science Differentiation in action Equation for aerobic respiration food + oxygen energy + carbon dioxide + water vapour
Science Differentiation in action carbon dioxide energy food oxygen water vapour Now, write down the equation for aerobic respiration.
Science Differentiation in action We use our lungs to take oxygen into our bloodstream for respiration. windpipe lung
Science Differentiation in action We also use our lungs to excrete carbon dioxide. windpipe lung bronchus bronchiole air sac diaphragm Use the diagram of the lungs in your textbook to locate these structures.
Science Differentiation in action Gas exchange occurs in tiny air sacs. Oxygen (from air) Carbon dioxide (into air) air sacs When we breathe in, oxygen moves from air sacs into our bloodstream. Carbon dioxide moves from our bloodstream into air sacs and is excreted out when we breathe out.
Science Differentiation in action Smoking damages our lungs and slows down gas exchange. Smoking causes: Bronchitis Lung cancer Heart strain
Science Differentiation in action So say NO to cigarettes!
Science Differentiation in action Review Question. Label each part. A B C D
Science Differentiation in action Question to think about. Is it a good idea to smoke during pregnancy?