[{"id":175623,"question":"The respiratory centre is present in :","choices":[{"text":"Lungs","value":"A"},{"text":"Brain","value":"B"},{"text":"Nose","value":"C"},{"text":"Muscles","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":175394,"question":"What percentage of oxygen inhaled form air during breathing?","choices":[{"text":"21%","value":"A"},{"text":"22%","value":"B"},{"text":"23%","value":"C"},{"text":"24%","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":175393,"question":"Rate of breathing depends upon concentration of which gas:","choices":[{"text":"Oxygen","value":"A"},{"text":"Carbon dioxide","value":"B"},{"text":"Nitrogen","value":"C"},{"text":"Hydrogen","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":175392,"question":"The percentage of oxygen from air which we inspired is:","choices":[{"text":"15 %","value":"A"},{"text":"21%","value":"B"},{"text":"25%","value":"C"},{"text":"28%","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":175391,"question":"In normal condition human respiration rate is:","choices":[{"text":"12 to 15 per minute","value":"A"},{"text":"15 to 12 per minute","value":"B"},{"text":"10 to 12 per minute","value":"C"},{"text":"16 to 20 per minute","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":175390,"question":"Percentage of CO<sub>2</sub> in exhaled are during breathing is:","choices":[{"text":"16%","value":"A"},{"text":"4%","value":"B"},{"text":"79%","value":"C"},{"text":"0.04%","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":175389,"question":"What happens during Exhalation?","choices":[{"text":"Ribs muscles relax","value":"A"},{"text":"Diaphragm become dome shaped","value":"B"},{"text":"Pressure on lungs increased","value":"C"},{"text":"All of these","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":175388,"question":"Which bring deoxygenated blood form heart into lungs?","choices":[{"text":"Pulmonary veins","value":"A"},{"text":"Pulmonary Artery","value":"B"},{"text":"Aorta","value":"C"},{"text":"Wind Pipe","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":175387,"question":"The number of lobes in right lung is:","choices":[{"text":"1","value":"A"},{"text":"2","value":"B"},{"text":"3","value":"C"},{"text":"4","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":175386,"question":"The muscles of ribs are called;","choices":[{"text":"Smooth muscles","value":"A"},{"text":"Cardiac muscles","value":"B"},{"text":"Intercoastal muscles","value":"C"},{"text":"Coastal muscles","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":175385,"question":"A thick muscular layer beneath lungs is called:","choices":[{"text":"Kidney","value":"A"},{"text":"Diaphragm","value":"B"},{"text":"Bladder","value":"C"},{"text":"Ureter","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":175384,"question":"Main role to give out air form lungs is;","choices":[{"text":"Bronchus","value":"A"},{"text":"Bronchi","value":"B"},{"text":"Bronchiote","value":"C"},{"text":"Diaphragm","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":175383,"question":"Power of speaking is only gifted to:","choices":[{"text":"Human being","value":"A"},{"text":"Monkey","value":"B"},{"text":"Parrot","value":"C"},{"text":"Crow","value":"D"},{"value":"E"}],"correctAnswer":1}]