Advertisements
Advertisements
प्रश्न
How do plants and animals maintain the balance of oxygen and carbon dioxide in the air?
उत्तर
- Respiration in plants:
During respiration, plants take in oxygen and release carbon-di-oxide, just as animals also do. Gaseous exchange with air in the atmosphere takes place in plants with stomata. - Photosynthesis:
During photosynthesis, carbon-di-oxide from the air and water from the soil react in the presence of sunlight to produce food. Plants release oxygen during photosynthesis which is much more than the oxygen consumed by the plants during respiration. - Respiration in animats:
When we breathe in the air, the oxygen present in the air reacts chemically with digested food within the body to produce carbon-di-oxide gas. The inhaled air contains more oxygen while the exhaled air contains more carbon-di-oxide.
So plants sent out more oxygen during photosynthesis. Animals sent out more carbon-di-oxide during respiration. Plants take carbon-di-oxide for photosynthesis. Animals take oxygen during respiration. So plants and animals maintain the balance of oxygen and carbon-di-oxide in the air.
APPEARS IN
संबंधित प्रश्न
Fill in the blank :
________ is the most abundant inert gas present in air.
Fill in the blank
The supporter of combustion in air is _____.
State the utility of oxygen for respiration in plants
Name three different appliances where air is utilized.
Of the total volume of air – 4/5th is nitrogen. State the utility or consequence of this ratio.
What happens if the percentage of oxygen in the air reaches to 70%?
Why is carbon-dioxide gas used to extinguish fire?
Write about the reaction of nitrogen with non metals.
______ is used as a substitute for compressed air in tyres.
Write just a few sentences for an imaginary situation if any of the following gases disappear from the atmosphere
carbon dioxide
