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प्रश्न
Choose the odd one out in the following groups of four items each:
Ethyl alcohol, Carbon dioxide, Starch, Oxygen
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उत्तर
Ethyl alcohol
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संबंधित प्रश्न
List the differences between aerobic and anaerobic respiration.
What would happen if all the green plants disappear from the earth?
Where in the lungs does gas exchange take place?
Fill in the following blank with suitable word:
The actual exchange of gases takes place in the ___________ of the lungs.
What is the function of the respiratory system?
Explain how, the air we breathe in gets cleaned while passing through the nasal passage.
Which of the following statements are true about respiration?
(i) during inhalation, ribs move inward and diaphragm is raised.
(ii) the gaseous exchange takes place in the alveoli.
(iii) haemoglobin has greater affinity for carbon dioxide than oxygen.
(iv) alveoli increase surface area of the exchange of gases
It has been found that people living in very high mountains have many more red corpuscles in their blood than people living in plains. Which one of the following best accounts for this phenomenon?
Veins and arteries carry blood. Which of these carry blood back to the heart?
Choose the odd one out in the following groups of four items each:
Hairy, Moist, Nostril, Vocal cord
Name the body structure concerned with the given functional activity:
Prevents food from entering the trachea during swallowing.
Which chemical compound inside a cell can be termed "Currency of Energy"?
State one function of the following:
Intercostal muscles
With regard to the respiratory system and the process of respiration in man, answer the following question :
Give the overall chemical equation to represent the process of respiration in humans.
Rewrite the following statement by selecting the correct option.
During respiration, ____________ gas is given out.
How much percent of C02 is transported in a dissolved form as carbonic acid?
Breathing is a process that
- provides O2 to the body.
- breaks down food to release energy.
- helps the body to get rid of CO2.
- produces water in the cells.
Which of the following gives the correct combination of functions of breathing?
Mark the following statement as True or False. Correct the false statement.
Insects have spiracles on the lower surface of the body
On a very cold morning, Boojho and Paheli were talking with each other as they walked down to their school. They observed that the air coming out of their mouth looked like smoke. They were amused and wondered how it happened. Help them find the answer.
Visit a local doctor. Learn about the harmful effects of smoking. You can also collect material on this topic from other sources. You can seek help of your teacher or parents. Find out the percentage of people of your area who smoke. If you have a smoker in your family, confront him with the material that you have collected.
