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प्रश्न
Define respiration.
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उत्तर
It is a process of release of energy from food substances such as glucose and fats under the control of enzymes, to carry out life processes, by the living organisms.
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संबंधित प्रश्न
Mention any two components of blood.
Name one substance which is produced in anaerobic respiration by an organism but not in aerobic respiration.
Which part of roots is involved in the exchange of respiratory gases?
Name an animal which depends on simple diffusion of gases for breathing.
During respiration, the plants take CO2 and release O2.
Fill in the following blank with suitable word:
The actual exchange of gases takes place in the ___________ of the lungs.
State the three common features of all the respiratory organs like skin, gills and lungs.
Why do the walls of trachea not collapse when there is less air in it?
Which of the following is not produced during anaerobic respiration in unicellular fungus?
Why is diffusion insufficient to meet the oxygen requirements of large multicellular organisms like humans?
When air is blown from mouth into a test-tube containing lime water, the lime water turns milky due to the presence of:
During marathon, we sometimes get painful contractions of leg muscles due to the accumulation of one of the following in leg muscles. This is:
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?
Out of xylem and phloem, which one carries materials upwards as well as downwards?
Differentiate between
External respiration and Internal respiration
Answer the following in detail.
How is the process of cellular respiration different from breathing?
Name the body structure concerned with the given functional activity:
Provides actual diffusion of respiratory gases in the lungs.
Which of the following indicates the shift of oxyhaemoglobin dissociation curve due to change in ppC02 in blood?
The partial pressure of oxygen of blood in pulmonary capillaries is i ______ mrnHg while in alveolar air it is ii ______ mmHg.
Breathing is a process that
- provides O2 to the body.
- breaks down food to release energy.
- helps the body to get rid of CO2.
- produces water in the cells.
Which of the following gives the correct combination of functions of breathing?
