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प्रश्न
Answer the following in short.
Define respiration.
उत्तर
The process of conversion of glucose molecules in food into energy-rich molecules, carbon dioxide, and water with the help of oxygen are known as respiration.
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संबंधित प्रश्न
If a plant is releasing carbon dioxide and taking in oxygen during the day, does it mean that there is no photosynthesis occurring? Justify your answer.
State whether the following statement is true or false:
during respiration, the plants take CO2 and release O2.
Why do the walls of trachea not collapse when there is less air in it?
Name the body structure concerned with the given functional activity:
Transports oxygen to the body cells.
What is the normal percentage composition of gases in inspired and expired air respectively?
Given below is an example of certain structure and its special functional activity:
"Kidney and excretion".
Fill in the blanks on a similar pattern.
'C' shaped cartilage rings and ____________.
With regard to the respiratory system and the process of respiration in man, answer the following question:
What is meant by :
- Residual air and
- Dead air space
What is the ppCO2 in alveolar air?
Which of the following statement(s) is (are) true about respiration?
- During inhalation, ribs move inward and the diaphragm is raised
- In the alveoli, exchange of gases takes place i.e., oxygen from alveolar air diffuses into blood and carbon dioxide from the blood into the alveolar air
- Haemoglobin has a greater affinity for carbon dioxide than oxygen
- Alveoli increase surface area for the exchange of gases
Explain the three pathways of breakdown in living organisms.
