Advertisements
Advertisements
प्रश्न
Match the items in Column I with the ones most appropriate in Column II. Rewrite the matching pairs.
|
Column I |
Column II |
|
(a) Alveoli |
(i) where aerobic respiration takes place |
|
(b) Bronchioles |
(ii) lined with hair |
|
(c) Nasal Chamber |
(iii) diffusion of gases |
|
(d) Bronchi |
(iv) small air tubes |
|
(v) an inverted Y shaped tube |
|
|
(vi) a common passage for food and air |
Advertisements
उत्तर
|
Column I |
Column II |
|
(a) Alveoli |
(iii) diffusion of gases |
|
(b) Bronchioles |
(iv) small air tubes |
|
(c) Nasal Chamber |
(ii) lined with hair |
|
(d) Bronchi |
(v) an inverted Y shaped tube |
APPEARS IN
संबंधित प्रश्न
How are the lungs designed in human beings to maximize the area for exchange of gases?
The breakdown of pyruvate to give carbon dioxide, water, and energy takes place in ______.
What would happen if all the green plants disappear from the earth?
Name the pores in a leaf through which respiratory exchange of gases takes place.
Name an animal which depends on simple diffusion of gases for breathing.
What organs are attached to the two bronchi?
Fill in the following blank with suitable word:
The actual exchange of gases takes place in the ___________ of the lungs.
Explain why, a land plant may die if its roots remain waterlogged for a long time.
One of the following organisms does not depend on the simple diffusion of gases for breathing and respiration. This organism is:
A, B and C are three living organisms. The organism A is a unicellullar fungus which can live without air. It is used in the commercial production of an organic compound P from molasses. The organism B is a unicellular animal which lives in water and feeds and moves by using pseudopodia. It breathes through an organelle Q. The organism C is a tiny animal which acts as a carrier of malarial parasite. It breathes and respires through a kind of tiny holes R and air-tubes S in its body.
(a) What are organisms (i) A (ii) B, and (iii) C?
(b) Name (i) P (ii) Q (iii) R, and (iv) S.
(c) Which organism/organisms undergo aerobic respiration?
(d) Which organism/organisms undergo anaerobic respiration?
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?
Fill in the following blanks with suitable words:
The ___________ blood cells make antibodies whereas ___________ blood cells help in respiration.
Why is respiration essential for life?
Which of the following indicates the shift of oxyhaemoglobin dissociation curve due to change in ppC02 in blood?
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.
Mark the following statement as True or False. Correct the false statement.
Exhaled air has more percentage of CO2 than inhaled air
Observe the figure carefully and answer the following questions.

- Which process is being tested in the activity?
- What is the result of the activity? Give reasons.
