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प्रश्न
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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उत्तर
(a) (i) Organism A is yeast.
(ii) Organism B is Amoeba.
(iii) Organism C is mosquito.
(b) (i) P is alcohol.
(ii) Q is the cell membrane because Amoeba breathes through the cell membrane.
(iii) R is spiracle.
(iv) S is tracheae.
(c) Organisms B and C undergo aerobic respiration.
(v) Organism A, i.e. yeast, undergoes anaerobic respiration.
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