Advertisements
Advertisements
प्रश्न
How do plants and animals maintain the balance of oxygen and carbon dioxide in the air?
Advertisements
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
Tick (√) the most appropriate answer.
The humans pollute the air by :
Give reason:
A burning candle stops burning if covered with a glass tumbler
Compare the three main components of air i.e. nitrogen, oxygen and carbon dioxide with reference to their density and solubility, nature and reactivity.
Of the total volume of air – 4/5th is nitrogen. State the utility or consequence of this ratio.
_______ can be seen moving in a beam of sunlight in a dark room.
_____ gas turns lime water milky.
What was the old name of nitrogen?
How to show the presence of carbon-di-oxide in the air?
Venus's atmosphere consists of roughly 96 – 97% of ______.
Make sentences using the given set of words.
99%, oxygen, nitrogen, air, together
