Breathing and Exchange of Gases Questions

Adult human RBCs are enucleate. Which of the following statement (s) is / are not most appropriate explanation for this feature? (a) They do not need to reproduce (b) They are somatic cells (c) They d...

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:

Which one of the following characteristics is not shared by birds and mammals?

Which of the following options correctly represents the lung conditions in asthma and emphysema, respectively ?

Match the items given 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 ii. 1100-1200 mL volume c. ...

Which of the following is an occupational respiratory disorder ? :

Which one of the following are analogous structures?

A scrubber in the exhaust of a chemical industrial plant removes

Reduction in respiratory surface of the lungs due to break down of partition in the alveoli is known as

The figure shows a diagrammatic view of human respiratory system with labels A, B, C and D. Select the option which gives correct identification andmain function and/or characteristic :-...

Which one of the following is the correct statement for respiration in humans ?

Which one of the following pair of gases are the major cause of green house effect ?

Two friends are eating together on a dining table. One of them suddenly start coughingwhile swallowing some food. This coughing would have been due to improper movement of

The figure given below shows a small part of human lung where exchange of gas takeplace. In which one of the options given below, the one part A, B, C or D is correctlyidentified along with its functi...

Which of the following is correctly states as it happens in the common cockroach ?

Which two of the following changes (1 - 4) usually tends to occur in the plain dwellers when the move to high altitudes (3,500 m or more ) ? (1) Increase in red blood cell size (2) Increase in red blo...

The two gases making highest relative contribution to the greenhouse gases are

Which part of the respiratory centre can control the process of inspiration as well as expiration :-

Presence of foetal haemoglobin will shift the O2/Hb curve towards :-