Respiratory system MCQ 7+

Test your knowledge with important Respiratory system MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 37+ more Respiratory system MCQs on Bissoy. Bissoy App

• What is the name of the gland which secrete melatonin?
  ক

  Pituitary gland

  খ

  Pineal gland

  গ

  Thyroid gland

  ঘ

  Hypothalamus
• How many oxygen molecules bound to hemoglobin to give 50% saturation?
  ক

  6

  খ

  4

  গ

  2

  ঘ

  7
• Oxygen and hemoglobin bind in a reversible manner to form______
  ক

  Carboxyhemoglobin

  খ

  Oxyhemoglobin

  গ

  Methoglobin

  ঘ

  BPG
• Which of the following controls the normal breathing process?
  ক

  Amino acids

  খ

  Cholesterol

  গ

  Ventral respiratory group

  ঘ

  Dorsal respiratory group
• Which of this statement is TRUE for pulmonary respiration?
  ক

  Exchange of gases between alveoli of lungs and the blood

  খ

  Exchange of gases between blood and tissue cells

  গ

  Breathing between the atmosphere and the alveoli of the lungs

  ঘ

  Production of ATP
• Which of the following is NOT the function of the respiratory system?
  ক

  Regulate blood pH

  খ

  Helps in gaseous exchange

  গ

  Protection against blood loss

  ঘ

  Contains receptors for the sense of smell
• Nose, larynx, pharynx, lungs, trachea, and bronchi are the parts of the respiratory system.
  ক

  True

  খ

  False
• Name the process of gaseous exchange in the body.
  ক

  Lymphatic system

  খ

  Respiration

  গ

  Cardiovascular system

  ঘ

  Respiratory system
• Alveoli
  ক

  Are lined by simple squamous epithelium

  খ

  Contains reticular fibers that prevent over distension

  গ

  Has communication with its neighbour

  ঘ

  Has alveolar macrophage in its surface

  ঙ

  Contain 97% of type II cell
• Types of cells found in the alveoli are
  ক

  Type I cells

  খ

  Type II cells

  গ

  Phagocytes

  ঘ

  Brush cells

  ঙ

  Clara cells
• In a histological section of the lung
  ক

  Cuboidal epithelium is present in the terminal bronchioles

  খ

  Mucous glands or cells are not present in the alveolar sacs

  গ

  Elastic fibres can be seen around the alveoli

  ঘ

  The branches of the pulmonary veins usually run independently of the branches of the pulmonary arteries

  ঙ

  There is cartilage in the wall of the bronchioles
• Terminal bronchioles
  ক

  Contain clara cells

  খ

  Contain plenty of goblet cells

  গ

  Contain plates of cartilage

  ঘ

  Are lined by simple columnar epithelium

  ঙ

  Contains alveoli
• Surfactant of lung alveoli
  ক

  Contains phospholipids

  খ

  Prevents oedema formation in the alveolar wall

  গ

  Stabilizes the size of an alveolus

  ঘ

  Reduce surface tension by approximately 30%

  ঙ

  Produces a mononuclear layer
• The alveolar epithelium
  ক

  Have type I and type II cells that are joined by functional complexes

  খ

  Is closely associated with capillary endothelium

  গ

  Rests on a well developed basement membrane

  ঘ

  Contains ciliated cells

  ঙ

  Has type I cells that contain multilamellar bodies of surfactant
• Epithelial cells
  ক

  Are derived only from the endoderm

  খ

  Act as a receptor cells

  গ

  Have abundant blood vessels

  ঘ

  Form adhesion and tight junctions between cells

  ঙ

  Transport ions