10/05/2020 Gas Exchange in Humans(Senior Class Biology Study by Topics) 10/05/2020 0Comments by Gate Academy Please fill in the information below. NAME EMAIL PHONE NUMBER 1. Concentration of oxygen is __________ in the lungs and __________ in the tissues. Low, high Low, low High, high High, low 2. What percentage of Oxygen makes up air? 40% 31% 50% 21% 3. What part(s) of the Respiratory System takes air to the lungs? Trachea, Larynx, Pharynx Trachea, Lungs, Diaphragm, Larynx Bronchi, Bronchioles, Nasal Cavity, and Heart Bronchioles, Diaphragm, Alveoli 4. __________ are two air tubes branching off form the trachea and carrying air to the lungs tranchea larynx bronchi epigotti 5. What are some diseases of the respiratory system? Ulcers, Emphysema, Asthma Bronchitis, Asthma, Emphysema Bronchitis, Meningitis, Ulcers Asthma, Diabetes, Bronchitis 6. Tiny sacs at the farthest end of the smallest airways are _________ which also branch off the bronchioles.(leave answer in lower case) alveoli 7. Movement of air in and out of the lungs is due to _______ Inhalation & Exhalation External intercostal muscles contract and internal intercostal muscles relax Diaphragm contracts and flattens Difference in pressure 8. How is carbon dioxide transported in the blood? Binding to white blood cells By combing with water in the plasma to produce bicarbonate Binding to plasma Binding with haemoglobin 9. What exactly happens that allows you to breathe? E lets air into lungs then C takes in Hydrogen D contracts letting air into lungs A contracts letting air into the lungs A contracts allowing I to let air out 10. What is the pathway air takes during inhalation and exhalation? Lungs, Mouth Mouth, Lungs, Trachea Mouth, Trachea, Stomach, Lungs Mouth, Trachea, Lungs 11. Which vessel(s) carry deoxygenated blood to the lungs? Pulmonary Capillaries Superior and Inferior Vena Cava Right and Left Pulmonary veins Left and Right Pulmonary Arteries 12. Carbon monoxide is a chemical found in tobacco smoke. It is known to reduce the efficiency of transportation of oxygen in the red blood cell. 'Infer, which structure is affected by carbon monoxide in red blood cell. Shape Haemoglobin Nucleus Thin walls 13. Air comprises the following components? Oxygen, Carbon Dioxide, Nitrogen and Natural Gas Oxygen, Carbon Dioxide, Natural Gas and Helium Oxygen, Carbon Dioxide, Water Vapour and Natural Gas Oxygen, Carbon Dioxide, Nitrogen and Water Vapour 14. Which of these is the job of the respiratory system? Breaking down food for it to be used by the body. All of the above Gas exchange between the external environment and the body's circulatory system. Holding up the body and giving it support and shape. 15. Which of the following statements is TRUE During inhalation, external intercostal muscles relax and internal intercostal muscles contract. Only diaphragm, intercostal muscles and sternum, is involved in inhalation and exhalation Sternum move upward and forward exhalation. Changes of the volume of cavity are workings of only the intercostal muscles and diaphragm. 16. Gaseous exchange occurs at alveoli and cellular level using what principle? Convection Diffusion Osmosis Transport 17. Oxygen rich blood is pumped out of which chamber of the heart into the aorta? Right Atrium Right Ventricle Left Ventricle Left Atrium 18. What is Asthma? Inflammation of the inner nose When you have difficulty breathing Inflammation of the Throat When your lungs start to deteriorate 19. External respiration can be described as? The exchange of gases at alveoli level within the lungs The exchange of gases at a cellular level within the body The passive process of exhalation The active process of inhalation 20. What is Bronchitis? Inflammation of the Mouth Inflammation of the Bronchial Tubes Inflammation of the Lungs Inflammation of the spine 21. This tube carries air down to the windpipe. Sinuses Larynx Pharynx Bronchi 22. Small air sacs in the lungs where many capillaries exchange carbon dioxide for oxygen taken into the body. Trachea Bronchi Sinuses Alveoli 23. Where does gas exchange occur in the respiratory system and what exactly diffuses in and out of the blood? Lungs, Oxygen and Nitrogen Diaphragm, Oxygen and Carbon Dioxide Alveoli, Oxygen and Carbon Dioxide Lungs, Carbon Dioxide and Glucose 24. Which of the following statements is FALSE A thin film of moisture covering the surface of the alveolus allows membranes to slide over each other easily during breathing. Numerous alveoli help increase surface area to volume ratio facilitates exchange of gases. Alveoli walls is one cell thick which increase the rate of diffusion of gases. Alveoli is well supplied with blood capillaries. 25. A large muscle that separates the chest cavity from the abdominal cavity and helps with breathing. Diaphragm Trachea Larynx Epigotti 1 out of 25 Time is Up! Time's up
