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प्रश्न
During respiration, the exchange of gases takes place in:
पर्याय
Bronchi
Alveoli
Bronchioles
Trachea
उत्तर
Alveoli
Alveoli are the pouch-like air sacs at the end of the small bronchioles. The walls of the alveoli are very thin. Also, they are surrounded by very thin blood capillaries. It is in the alveoli that the gaseous exchange takes place.
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संबंधित प्रश्न
The breakdown of pyruvate to give carbon dioxide, water, and energy takes place in ______.
During heavy exercise, we get cramps in the legs due to the accumulation of ______.
The exchange of respiratory gases in the cells of plants occurs by the process of _______________
(a) Osmosis
(b) Diffusion
(c) Glycolysis
(d) exhalation
What is the name of the extensions of the epidermal cells of a root which help in respiration?
What is the other name of wind-pipe?
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
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?
Answer the following in detail.
How is the process of cellular respiration different from breathing?
Which chemical compound inside a cell can be termed "Currency of Energy"?
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.
Draw a diagram of the human respiratory system and label - pharynx, trachea, lungs, diaphragm and alveolar sac on it.
Define respiration.
The major fraction of CO2 released during cellular respiration is transported by the blood to the lung capillaries ______
Which of the following indicates the shift of oxyhaemoglobin dissociation curve due to change in ppC02 in blood?
Glycolysis process occurs in which part of the cell?
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
Which of the following equations is the summary of photosynthesis?
Mark the following statement as True or False. Correct the false statement.
Exhaled air has more percentage of CO2 than inhaled air
