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प्रश्न
Draw a labelled diagram of the human respiratory system.
उत्तर
Human Respiratory System:
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संबंधित प्रश्न
Carbon dioxide enters into the leaves through tiny pores present on the surface of the leaf called _________.
(a) chlorophyll
(b) chloroplast
(c) stomata
(d) epidermis
What are the different ways in which glucose is oxidized to provide energy in various organisms?
Compare the functioning of alveoli in the lungs and nephrons in the kidneys with respect to their structure and functioning.
What is the other name of wind-pipe?
What organs are attached to the two bronchi?
Fill in the Following Blank with Suitable Word.
_________ In the Lungs Provide a Very Large Surface Area for Gaseous Exchange.
Explain why, when air is taken in and let out during breathing, the lungs always contain a residual volume of air.
Give the main points of difference between respiration in plants and respiration in animals.
Describe the exchange of gases which takes place in the leaves of a plant
(a) during daytime, and (b) at night.
During respiration, the exchange of gases takes place in:
An organism X having breathing organs A lives on land. When organism X goes underwater, it cannot survive for a long time unless carrying an oxygen cylinder. On the other hand, the organism Y having breathing organs B always lives in water and if taken out of the water, it dies after a short while. A third organism Z having breathing organs C and D which lives on the banks of ponds, lakes, and rivers can survive on land as well as in water equally well.
(a) What could organism X be? Name the breathing organs A.
(b) What could organism Y be? Name the breathing organs B.
(c) What could organism Z be? Name the breathing organs C and D.
(d) Out of X, Y, and Z, which organism is (i) amphibian, (ii) aquatic, and (iii)
terrestrial?
Answer this question.
What are the holes on the sides of the body of insects called?
Choose the odd one out in the following groups of four items each:
Ethyl alcohol, Carbon dioxide, Starch, Oxygen
Why is respiration essential for life?
Air that enters through the nose passes into this tube.
Complete the analogy.
Transport of CO2 by plasma : 7% :: Transport of CO2 by bicarbonate ions: ____________.
Which of the following is an incorrect statement?
Sometimes when we do heavy exercise, anaerobic respiration takes place in our muscle cells. What is produced during this process?
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.
The oxygen dissociation curve is a sigmoid curve and it shifts towards the right due to ______.
