Every question from past board papers on Breathing and respiration: mechanism, exchange and transport of gases, volumes, disorders, newest paper first. Open any question for its full worked answer.
Match List - I with List - II.
List - I: A. Emphysema; B. Angina Pectoris; C. Glomerulonephritis; D. Tetany
List - II: I. Rapid spasms in muscle due to low Ca++ in body fluid; II. Damaged alveolar walls and decreased respiratory surface; III. Acute chest pain when not enough oxygen is reaching to heart muscle; IV. Inflammation of glomeruli of kidney
Choose the correct answer from the options given below :
Match List I with List II :
List I:
A. Expiratory capacity
B. Functional residual capacity
C. Vital capacity
D. Inspiratory capacity
List II:
I. Expiratory reserve volume + Tidal volume + Inspiratory reserve volume
II. Tidal volume + Expiratory reserve volume
III. Tidal volume + Inspiratory reserve volume
IV. Expiratory reserve volume + Residual volume
Choose the correct answer from the options given below :
Which of the following factors are favourable for the formation of oxyhaemoglobin in alveoli?
Vital capacity of lung is ________.
Which of the following is not the function of conducting part of respiratory system ?
Under normal physiological conditions in human being every 100 ml of oxygenated blood can deliver ______ ml of \(O_2\) to the tissues.
Select the favourable conditions required for the formation of oxyhaemoglobin at the alveoli.
The partial pressures (in mm Hg) of oxygen (O\(_2\)) and carbon dioxide (CO\(_2\)) at alveoli (the site of diffusion) are :
Assertion (A) :
A person goes to high altitude and experiences ‘altitude sickness’ with symptoms like breathing difficulty and heart palpitations.
Reason (R) :
Due to low atmospheric pressure at high altitude, the body does not get sufficient oxygen.
In the light of the above statements, choose the correct answer from the options given below.
Identify the wrong statement with reference to transport of oxygen.
Select the correct events that occur during inspiration.
(a) Contraction of diaphragm
(b) Contraction of external inter-costal muscles
(c) Pulmonary volume decreases
(d) Intra pulmonary pressure increases
Identify the correct statement with reference to human digestive system.
The enzyme enterokinase helps in conversion of :
Due to increasing air-borne allergens and pollutants, many people in urban areas are suffering from respiratory disorder causing wheezing due to :
Tidal Volume and Expiratory Reserve Volume of an athlete is 500 mL and 1000 mL respectively. What will be his Expiratory Capacity if the Residual Volume is 1200 mL ?
Which of the following options correctly represents the lung conditions in asthma and emphysema, respectively ?
Match the items given in Column I with those in Column II and select the correct option given below :
Column I | Column II
a. Tidal volume | i. 2500 – 3000 mL
b. Inspiratory Reserve volume | ii. 1100 – 1200 mL
c. Expiratory Reserve volume | iii. 500 – 550 mL
d. Residual volume | iv. 1000 – 1100 mL
Which of the following terms describe human dentition ?
Which of the following is an occupational respiratory disorder ?
A baby boy aged two years is admitted to play school and passes through a dental check - up. The dentist observed that the boy had twenty teeth. Which teeth were absent ?
Lungs are made up of air-filled sacs, the alveoli. They do not collapse even after forceful expiration, because of :
Name the chronic respiratory disorder caused mainly by cigarette smoking :
Asthma may be attributed to :
Reduction in pH of blood will :
The partial pressure of oxygen in the alveoli of the lungs is
Lungs do not collapse between breaths and some air always remains in the lungs which can never be expelled because
