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प्रश्न
How are oxygen and carbon dioxide transported in human beings?
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उत्तर
- Transport of Oxygen: The respiratory pigments (haemoglobin) present in red blood cells take up the oxygen from the air to the lungs. They carry the oxygen to tissues which are deficient in oxygen.
- Transport of carbon dioxide: Carbon Dioxide is more soluble in water. Hence, it is mostly transported from body tissues in the dissolved form in our blood plasma to lungs where it diffuses from blood to air in the lungs and then expelled out through nostrils.
संबंधित प्रश्न
Carbon dioxide enters into the leaves through tiny pores present on the surface of the leaf called _________.
(a) chlorophyll
(b) chloroplast
(c) stomata
(d) epidermis
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Name the process by which plant parts like roots, stems, and leaves get oxygen required for respiration.
Name the areas in a woody stem through which respiratory exchange of gases takes place.
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Fill in the following blank with suitable word:
Gills are the breathing organs in ___________.
Explain how, it would benefit deep sea divers if humans also had gills.
What is the function of the respiratory system?
Internal respiration may be defined as:
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?
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Ethyl alcohol, Carbon dioxide, Starch, Oxygen
Name the body structure concerned with the given functional activity:
Prevents food from entering the trachea during swallowing.
How is the respiratory passage kept free of dust particles?
Define respiration.
Identify the CORRECT sequence of events for the transport of respiratory gases.
Explain the three pathways of breakdown in living organisms.
List the similarities between aerobic and anaerobic respiration.
