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प्रश्न
State the utility of oxygen for respiration in living organisms
उत्तर
Respiration in living organisms :
Respiration: It is a process whereby living things
- Use oxygen from their air to oxidize food substances mainly glucose, in their body cells.
- Release energy in the form of heat.
- Carbon dioxide and water vapour are also produced and released in the exhaled air
\[\ce{Glucose + \underset{\text{[in air]}}{Oxygen} -> \underset{\text{Exhaled air}}{Carbon dioxide + Water vapour+ Energy[heat]}}\]
Process:
- Inhaled air— Oxygen from inhaled air dissolves in the blood stream in the lungs. It is carried to the cells where the food materials i.e. glucose is oxidized by the oxygen.
- Exhaled air— Carbon dioxide, water vapour, and heat energy diffuse out of the lungs as exhaled air.
- The energy liberated— The energy liberated is utilized for metabolic activities and maintains body temperature.
संबंधित प्रश्न
What is air pollution ? What are the harmful effects of sulphur dioxide, nitrogen dioxide and hydrogen sulphide present in the air ?
Answer the question put against the following constituents of air :
Carbon dioxide : “Although carbon dioxide plays no role in respiration, all life would come to an end if there is no carbon dioxide in air.” Support this statement with relevant facts.
Statement given below is incorrect. Write the correct statement :
Carbon dioxide gas allows the earth to radiate out heat rapidly.
Briefly state the importance of Carbon dioxide.
Name and briefly explain four ways by which pollution of air caused by humans is minimised.
Tabulate the various components of air, including the components with variable composition.
______ is the percentage of nitrogen in air.
The constituent of air that supports combustion is _____.
Inhaled air contains a large amount of carbon-di-oxide.
State whether the following statement is true or false. If false, correct them.
Plants consume oxygen for respiration.
