1.

When a moist slice of bread was kept aside for a few days then some organism grew on it to form a white cottony mass which later turned black. When this slice of bread was observed through a magnifying glass, then fine thread-like protections and thin stems having bulb-like structures at the top were seen.1. What is the common name of the organism which grew on the moist slice of bread ?(i) Bread mould(ii) planaria(iii) plasmodium(iv) spirogyra2. What are the fine, thread-like protections on the surface of slice of bread known as ?(i) tentacles(ii) spores(iii) hyphae3. What name is given to the knob-like structures ?(i) tentacles(ii) sporangia(iii) dendrites4. What is the name of this method of reproduction ?(i) Spore formation(ii) Regeneration(iii) Fragmentation(iv) Budding5. Name one unicellular organism which reproduces by this method.(i) Bacteria(ii) Amoeba(iii) planaria(iv) plasmodium

Answer»

1. (i) Bread mould

2. (iii) Hyphae

3. (ii) Sporangia

4. (i) Spore formation

5. (i) Bacteria



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