Question

Which of the following are green lungs
A. Green coloured lungs
B. Lungs with green algae
C. Lungs in green coloured animals
D. Forests

Answer 1

Hint: Lungs perform the function of respiration in a large number of organisms including human beings. The oxygen needed for respiration is derived from the plants .The plants are very necessary to fulfil the purpose and mechanism of respiration in most of the organisms. Photosynthesis is the process by which green plants, algae and certain other organisms convert light energy into chemical energy.

Complete step by step answer:
-During the process of photosynthesis, green plants absorb carbon dioxide in the presence of light and convert them to glucose by the reaction with water having the by-product Oxygen, which is subsequently released into the atmosphere.
-This is also called Oxygenic photosynthesis.
-With the help of light energy, electrons are transferred from water to carbon dioxide.
-For an urban population, smaller forests and trees are more than just nice to look.
-They are called Green lungs.
-Green lung can be said as a natural area supposed to replenish the air with oxygen by removing the carbon dioxide.
-As in the same way that our lungs absorb carbon dioxide from the blood and substitute it with oxygen.
-Therefore, forests act as a purifier.
-Forests absorb a huge amount of carbon dioxide that circulates in the atmosphere and releases oxygen to the atmosphere.
-They are called lungs of the earth.
So, the correct answer is option (D) Forests.

Note: Anoxygenic photosynthesis- Usually seen in certain bacteria such as Green Sulphur bacteria and Purple bacteria, oxygen is not produced during the process. Also, the respiration mechanism in which oxygen is not required is called aerobic respiration. Photosynthesis and respiration are closely related and both are impossible in the absence of each other.