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 projections and thin stems having bulb like structures at the top were seen. b How did this organism grow on the moist slice of bread automatically?

Q.

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 projections and thin stems having bulb-like structures at the top were seen.

(c) What are the fine, thread-like projections on the surface of slice of bread known as?

Q.

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 projections and thin stems having bulb-like structures at the top were seen.

(a) What is the common name and scientific name of the organism which grew on the moist slice of bread?

Q.

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 projections and thin stems having bulb-like structures at the top were seen.

(f) Name one unicellular organism which reproduces by this method

Q.

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 projections and thin stems having bulb-like structures at the top were seen.

(e) What is the name of this method of reproduction?

Q.

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 projections and thin stems having bulb-like structures at the top were seen.

(g) Name two non-flowering plants which reproduce by this method.

●Bread mould reproduces by spore formation. ●The organisms would have grown as the spores germinated on moist bread. ●Thus, they grew on the surface of bread automatically.

●Bread mould reproduces by spore formation.
●The organisms would have grown as the spores germinated on moist bread.
●Thus, they grew on the surface of bread automatically.