List of top Biology Questions on Exchange Of Gases

Which of the following statements about the pharynx and larynx is/are correct? 

(1) The pharynx serves as a pathway for both food and air. 
(2) The larynx is involved in the production of sound. 
(3) The pharynx contains the vocal cords. 
(4) The larynx prevents food from entering the trachea.

Choose the correct options from the given below:

Under normal physical conditions in human beings every 100 ml oxygenated blood can deliver____ml of O2 to the tissues.
Which of the following is not the function of the conducting part of the respiratory system?
The partial pressures (in mm Hg) of oxygen (O2 ) and carbon dioxide (CO2 ) at alveoli (the site of diffusion) are
Identify the wrong statement with reference to transport of oxygen
Due to increasing air-borne allergens and pollutants, many people in urban areas are suffering from respiratory disorder causing wheezing due t o :
Which of the following is an occupational respiratory disorder ?
Adam's apple is also called _____
Lungs are made up of air-filled sacs, the alveoli. They do not collapse even after forceful expiration, because of:
Lungs do not collapse between breaths and some air always remains in the lungs which can never be expelled because
Asthma may be attributed to :
During expiration the diaphragm becomes
Hiccups can be best described as
Each 100 ml of human arterial blood carries �P� ml of $O_2$ and �Q� ml of $CO_2$ whereas each 100 ml of venous blood carries �R� ml of $O_2$ and �S� ml of $CO_2$. Choose the values of P, Q, R and S.
Approximately seventy percent of carbon-dioxide absorbed by the blood will be transported to the lungs

Match the items listed under Column-I with those given under Column-II; choose the appropriate option from the given choices.

Column IColumn II
AResidual Volume(RV)P400 ml - 4600 ml
BInspiratory Reserve Volume (IRV)Q1100 ml - 1200 ml
CVital Capacity (VC)R1000 ml - 1100 ml
DExpiratory Reserve Volume (ERV)S3000 ml - 3500 ml
EInspiratory Capacity (IC)T2500 ml - 3000 ml
When concentration of carbon dioxide increases in blood, respiration becomes
The trachea terminates into
During the transportation gases, to maintain the ionic balance chloride ions shifts from
Which one of the following is the correct statement for respiration in humans?
1200 ml of air remaining in lungs even after forceful expiration is
The volume of Anatomical Dead Space air is normally
Expiratory Capacity of a person is
After forceful inspiration, the amount of air that can be breathed out by maximum forced expiration is equal to
Between breaths, the intrapleural pressure is approximately ___ mmHg less than atmospheric pressure.