Respiratory System MCQs with Answers

Past Paper MCQ

The chemical process in which energy is released from food?

• A.Respiration
• B.Photosynthesis
• C.Fermentation
• D.Digestion

The organ that is part of the respiratory system is ?

• A.Kidney
• B.Lungs
• C.Liver
• D.Stomach

The thoracic cavity separates from abdominal region by ?

• A.Peritoneum
• B.Mediastinum
• C.Pleura
• D.Diaphragm

Which cavity of the body is used for gas exchange?

• A.Thoracic cavity
• B.Abdominal cavity
• C.Pelvic cavity
• D.Cranial cavity

One of the following is the respiratory controlling center?

• A.Medulla
• B.Cerebellum
• C.Hypothalamus
• D.Thalamus

The gases required for respiration are ?

• A.Glucose (C6H12O6) and Oxygen (O2)
• B.Glucose (C6H12O6) and Carbon dioxide (CO2)
• C.Oxygen (O2) and Carbon dioxide (CO2)
• D.Oxygen (O2) and Nitrogen (N2)

Which of the following best describes the residual volume of the lungs?

• A.The maximum volume of air that can be inhaled after a normal exhalation
• B.The volume of air inhaled or exhaled during normal breathing
• C.The total volume of air that can be exhaled after a maximum inhalation
• D.The volume of air that always remains in the lungs even after forceful exhalation

Gas is exchanged in the alveoli by the process of _?

• A.Osmosis
• B.Simple diffusion
• C.Active transport
• D.Facilitated diffusion

Each bronchial tube is joined to each?

• A.Trachea
• B.Lung
• C.Alveolus
• D.Diaphragm

The opening of the trachea is called ?

• A.Epiglottis
• B.Glottis
• C.Larynx
• D.Pharynx