Learn Class 7 Science - Respiration in Organisms

Respiration in Organisms Sample Questions for Class 7

Question 1

Which part of the cell is used for diffussion of gases in Paramecium?
A. Cell membrane
B. Cell wall
C. Cytoplasm
D. Necleus

Question 2

Which of the following shows correct sequence of organs in human respiratory system?
A. Nostrils --> Trachea --> Lung --> Bronchi
B. Trachea --> Bronchi ---> Lungs --> Bronicholes
C. Nostrils --> Trachea ---> Brochioles ---> Lungs
D. Trachea ---> Bronchioles ---> Lungs ---> Alveoli

Question 3

C6H12O6 + 6O2. ---> 6CO2 + 6H2O + Energy. This equation represents which type of respiration?
A. Aerobic
B. Anaerobic
C. Lack of Oxygen
D. None of the above

Question 4

Which of the following is correct statement?
A. During inhalation oxygen is 21% and CO2 is 0.04%
B. During inhalation oxygen is 16.4% and CO2 is 4.4%
C. During exhalation oxygen is 16.4% and CO2 is 0.04%
D. During exhalation oxygen is 21% and CO2 is 4.4%

Question 5

Which of the following is a correct match for organism and organ used for respiration?
A. Amoeba - Cell Membrane
B. Earthworm - Spiracles
C. Grasshopper - Nostrils
D. Tadpole - Lungs