Name: _______________________ Year 8: Worksheet Three—The Respiratory System This worksheet is designed to assess the following success criteria: • I can explain what the respiratory system is and how it functions. • I can distinguish each of the structures and functions of the components of the respiratory system and how they work together during cellular respiration. • I can describe the conditions that impact the healthy functioning of the lungs. Question 1: What is the respiratory system and what is its main purpose? [2 marks] _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ Question 2: Distinguish between cellular respiration and breathing. [2 marks] _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ Question 3: Fill in the blanks [6 marks] “While _________ respiration and breathing may, at first, seem like the exact same action, they are quite different. ______________________ is the chemical process that happens in cells, while ___________ is the inhalation of ___________ and the _______________ of _________ ___________.” Question 4: Cellular respiration is also defined as being the chemical reaction between glucose and oxygen, to produce carbon dioxide, water, and energy. What happens to the energy gained during cellular respiration? [8 marks] _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ Question 5: What role does the diaphragm pay in inhalation and exhalation? [2 marks] _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ Question 6: There are certain conditions with impact upon the healthy functioning of the lungs. Examples of these conditions are asthma, emphysema, and pneumonia. Using what you have learnt in class, choose ONE condition, and describe how it impacts upon the healthy functioning of the lungs. [6 marks] _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ Question 7: Where does air go when we inhale? Use the words in the vocabulary grid below in your answer. [12 marks] Nose and Mouth Trachea Bronchioles Capillaries Pharynx Lungs Alveoli Oxygen Epiglottis Bronchi Blood vessels Carbon dioxide _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________
