EASY
Earn 100

Which of the following is the function of pleural fluid?

50% studentsanswered this correctly

Important Questions on Breathing and Respiration

EASY
Biology>Human Physiology>Breathing and Respiration>Respiratory System in Humans
The process in which atmospheric air with 21% of O2 is drawn in and alveolar air rich in CO2 is sent out is called        
EASY
Biology>Human Physiology>Breathing and Respiration>Respiratory System in Humans
Cavity lodging lungs is _______
EASY
Biology>Human Physiology>Breathing and Respiration>Respiratory System in Humans
Match the following
  List-I   List-II
(A) Moist body wall (I) Insects
(B) Tracheal system (II) Amphibian larvae
(C) Book lungs (III) Earthworms
(D) Gills (IV) Aves
    (V) Spiders

The correct match is
EASY
Biology>Human Physiology>Breathing and Respiration>Respiratory System in Humans
A person suddenly starts coughing while swallowing food. This coughing would have been due to improper movement of
MEDIUM
Biology>Human Physiology>Breathing and Respiration>Respiratory System in Humans
A person has 400 million alveoli per lung with an average radius of 0.1 mm for each alveolus. Considering the alveoli are spherical in shape, the total respiratory surface of that person is closest to
EASY
Biology>Human Physiology>Breathing and Respiration>Respiratory System in Humans
The unpaired cartilages supporting the wall of larynx are      
EASY
Biology>Human Physiology>Breathing and Respiration>Respiratory System in Humans
Which is the correct sequence of the air passage in man?
EASY
Biology>Human Physiology>Breathing and Respiration>Respiratory System in Humans
Which of the following is not the function of conducting part of respiratory system?
MEDIUM
Biology>Human Physiology>Breathing and Respiration>Respiratory System in Humans

Match the type of cells in Column I with the organs they are part of, listed in Column II:

  Column I   Column II
P. Chondroblast i. Bone
Q. Osteoclast ii. Brain
R. Microglia iii. Cartilage
S. Pneumocyte iv. Lung

Choose the CORRECT combination.

EASY
Biology>Human Physiology>Breathing and Respiration>Respiratory System in Humans
If the number of alveoli in an individual is doubled without changing the total alveolar volume, the gas exchange capacity of the lungs will:
EASY
Biology>Human Physiology>Breathing and Respiration>Respiratory System in Humans
In jelly fishes, majority of gaseous exchange takes place through the ______.
EASY
Biology>Human Physiology>Breathing and Respiration>Respiratory System in Humans
The lungs are spongy and elastic due to _______.
EASY
Biology>Human Physiology>Breathing and Respiration>Respiratory System in Humans

Which structure of the lungs is directly involved in O2/CO2 exchange between air and blood capillary?

EASY
Biology>Human Physiology>Breathing and Respiration>Respiratory System in Humans
The area of inner surface of bronchiole is:
EASY
Biology>Human Physiology>Breathing and Respiration>Respiratory System in Humans
Lungs have a large number of narrow tubes called:
EASY
Biology>Human Physiology>Breathing and Respiration>Respiratory System in Humans
A muscular transverse partition in mammals that separates thorax from the abdomen is called:
EASY
Biology>Human Physiology>Breathing and Respiration>Respiratory System in Humans
The diagram represents the human larynx. Choose the correct combination of labelling from the options given.

Question Image
EASY
Biology>Human Physiology>Breathing and Respiration>Respiratory System in Humans
The volume of air in the dead space fo human lungs is normally
EASY
Biology>Human Physiology>Breathing and Respiration>Respiratory System in Humans
Which of the following shows pulmonary respiration?
EASY
Biology>Human Physiology>Breathing and Respiration>Respiratory System in Humans
The figure given below shows a small part of human lung where exchange of gas takes place. In which one of the options given below, the one part A, B, C or D is correctly identified along with its function.

Question Image