A, B and C are three living organisms. The organism A is a unicellular fungus which can live without air. It is used in the commercial production of a 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 ?

(a) (i) A - Yeast. (ii) B - Amoeba. (iii) C - Mosquito.

(b) (i) P is alcohol. (ii) Q is the cell membrane. (iii) R is spiracle. (iv) S is tracheae

(c) Organisms B and C.

(d) Organism A.


Simply Easy Learning

Updated on: 24-Mar-2023


Kickstart Your Career

Get certified by completing the course

Get Started