Breathing Basics Quiz

Froggy Jumps

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Breathing and gas exchange

dinie aqilah

Malaysia

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Breathing Basics Quiz


Froggy Jumps Breathing Basics QuizVersion en ligne Breathing and gas exchange par dinie aqilah 1 What is the primary function of the human respiratory system? a Gas exchange of O2 and CO2 between air and blood. b Pumping blood throughout the body c Digesting nutrients 2 Which organ is the main site of gas exchange? a Esophagus b Trachea c Alveoli in the lungs. 3 Which muscle aids breathing as it contracts to inflate the lungs? a Diaphragm. b Liver c Heart 4 What prevents food from entering the trachea during swallowing? a Epiglottis. b Pharynx c Uvula 5 What is tidal volume? a Total lung capacity b Amount of air moved per normal breath. c Residual volume 6 Which molecule carries most of the oxygen in blood? a Myoglobin b Hemoglobin. c Albumin 7 Which part of the airway filters, warms, and humidifies air? a Nose/Nasal cavity. b Larynx c Alveoli 8 Which process requires active muscle action? a Gas exchange at the alveoli b Exhalation (expiration) c Inhalation (inspiration). 9 What is the correct sequence of air flow from nose to alveoli? a Nose → larynx → trachea → pharynx → alveoli. b Alveoli → bronchioles → trachea → larynx → pharynx c Nose → pharynx → larynx → trachea → bronchi → bronchioles → alveoli. 10 What is the total volume of air the lungs can hold called? a Tidal volume b Total lung capacity. c Residual volume