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प्रश्न
Define breathing. State the differences between breathing and respiration.
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उत्तर
Breathing is a physical mechanism in which an organism takes up oxygen from the air and gives out carbon dioxide.
| Breathing | Respiration |
| It is a physical process. | It is a biochemical process. |
| It involves exchange of gases. | It involves exchange of gases along with the oxidation of food. |
| It involves the lungs, where the exchange of gases takes place. | Along with the lungs, it involves the mitochondria of the cells, where oxidation of food takes place. |
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संबंधित प्रश्न
How are the lungs designed in human beings to maximize the area for exchange of gases?
Out of photosynthesis and respiration in plants, which process occurs:
(a) all the time?
(b) only at daytime?
Where in the lungs does gas exchange take place?
Explain why, a land plant may die if its roots remain waterlogged for a long time.
Why do the walls of trachea not collapse when there is less air in it?
What type of repiration takes place in yeast?
Internal respiration may be defined as:
Which of the following statements are correct?
(i) pyruvate can be converted into ethanol and carbon dioxide by yeast
(ii) fermentation takes place in the case of aerobic bacteria
(iii) fermentation takes place in mitochondria
(iv) fermentation is a form of anaerobic respiration
The photosynthesis in a plant is not taking place during the day time if the plant is releasing:
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?
With which human organ system (or human systems) is alveoli associated?
Answer this question.
Name the organ of respiration in fishes.
Choose the odd one out in the following groups of four items each:
Hairy, Moist, Nostril, Vocal cord
Which chemical compound inside a cell can be termed "Currency of Energy"?
State one function of the following:
Intercostal muscles
Air that enters through the nose passes into this tube.
Which of the following indicates the shift of oxyhaemoglobin dissociation curve due to change in ppC02 in blood?
Lack of oxygen in muscles often leads to cramps among cricketers. This results due to:
How does aerobic respiration differ from anaerobic respiration?
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.
