Respiratory System
Biology ⇒ Human Biology
Respiratory System starts at 6 and continues till grade 12.
QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Respiratory System.
How you perform is determined by your score and the time you take.
When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 9
A student is running a race and starts breathing faster. What is the main reason for this change?
Describe how the respiratory system helps maintain homeostasis in the body.
Describe the difference between inhalation and exhalation.
Describe the effect of high altitude on breathing.
Describe what happens to the rib cage during inhalation.
Explain how oxygen is transported in the blood.
Explain the role of the diaphragm during inhalation.
Explain what happens to the diaphragm and chest cavity during exhalation.
Explain why the walls of alveoli are very thin.
Name the tiny air sacs in the lungs where gas exchange occurs.
What is the function of cilia in the respiratory tract?
What is the main reason why breathing rate increases during exercise?
What is the main waste product removed from the body by the respiratory system?
What is the name of the fluid that lines the inside of the alveoli and helps reduce surface tension?
Which gas is absorbed from the air into the blood in the lungs?
Which gas is released from the blood into the air in the lungs?
Which part of the brain controls the rate of breathing?
Which structure divides into two bronchi, each leading to a lung?
