
Draw a well labelled diagram of human respiratory system. Name the part where exchange of gases takes place in our body. How does this process occur?

Important Questions on Respiration in Plants and Animals


Study the given diagram showing the section through an alveolus and capillary.
Which of the following best describes the concentration of oxygen at X, Y and Z.

The following are the two pie charts which give the percentage of compositions found in exhaled air and inhaled air.
Explain the following terms
i. Inhaled air
ii. Exhaled air

The following are the two pie charts which give the percentage of compositions found in exhaled air and inhaled air.
Which pie chart is most likely taken from a sample of exhaled air?

The following are the two pie charts which give the percentage of compositions found in exhaled air and inhaled air.
Which pie chart is most likely taken from the sample of exhaled air? Explain our answer?

The following are the two pie charts which give the percentage of compositions found in exhaled air and inhaled air.
Write the word equation below to represent the chemical reaction taking place in living cells that contributes to the different compositions in the exhaled air.
