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प्रश्न
Given below is an example of certain structure and its special functional activity:
"Kidney and excretion".
Fill in the blanks on a similar pattern.
Alveoli and _____________.
उत्तर
Alveoli and gaseous diffusion.
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संबंधित प्रश्न
How are the alveoli designed to maximise the exchange of gases?
The exchange of respiratory gases in the cells of plants occurs by the process of _______________
(a) Osmosis
(b) Diffusion
(c) Glycolysis
(d) exhalation
Name the process by which plant parts like roots, stems, and leaves get oxygen required for respiration.
The trachea divides into tow tubes at its lower end. What is the name of these tubes?
Where does the blood absorb oxygen in the human body?
What organs are attached to the two bronchi?
"Respiration is a vital function of the body". Justify this statements.
Which of the following is correct for the process of anaerobic respiration?
| Carbon dioxide always produced | A lot of energy released | |
| (a) | No | Yes |
| (b) | No | No |
| (c) | Yes | No |
| (d) | Yes | Yes |
Internal respiration may be defined as:
Which of the following is the correct sequence of air passage during inhalation?
(a) nostrils → larynx → pharynx → trachea → lungs
(b) nasal passage → trachea → pharynx → larynx → alveoli
(c) larynx → nostrils → pharynx → lungs
(d) nostrils → pharynx → larynx → trachea → alevoli
The breathing and respiration in woody stem of a plant takes place through:
The photosynthesis in a plant is not taking place during the day time if the plant is releasing:
One of the following organisms does not depend on the simple diffusion of gases for breathing and respiration. This organism is:
Some sugar solution is taken in a test-tube and a little of substance X in powder form is added to it. The mouth of test-tube is closed with a cork and allowed to stand for sometime. On opening the cork, a characteristic smell of substance Y is obtained and a gas Z is also observed to be formed. The gas Z extinguishes a burning matchstick.
(a) What could be (i) X, (ii) Y, and (iii) Z?
(b) What is the process of converting sugar into substance Y by the action of X known as?
(c) What type of respiration is exhibited by X in the above process?
Answer the following in one word.
What is the muscular sheet below the lungs called?
Answer the following in short.
Define respiration.
A student has set up "CO2 is released during respiration”. After about 1 hour he observes no change in the water level in the delivery tube. Write two possible resons for the failure of the experiment.
Name the body structure concerned with the given functional activity:
Transports oxygen to the body cells.
Name the body structure concerned with the given functional activity:
Combines with the oxygen in the lungs.
How is the respiratory passage kept free of dust particles?
List the organs of Human respiratory system.
The major fraction of CO2 released during cellular respiration is transported by the blood to the lung capillaries ______
Sometimes we get painful cramps in our leg muscles after running for a long time due to the accumulation of:
Which of the following is an incorrect statement?
Mark the following statement as True or False. Correct the false statement.
Insects have spiracles on the lower surface of the body.
The oxygen dissociation curve is a sigmoid curve and it shifts towards the right due to ______.
Visit a doctor. Find out about artificial respiration. Ask the doctor:
- When does a person need artificial respiration?
- Does the person need to be kept on artificial respiration temporarily or permanently?
- From where can the person get supply of oxygen for artificial respiration?
