Question

Observe a parasitic plant,a saprophytic plant,an insectivorous plant and a green plant. Note down their characterstics and differences and tabulate them.
pls pls pls answer it..........
Thanks
navya

Answer 1

a) Parasitic mode: 
The organisms which exhibit parasitic mode of nutrition are called as parasites. Parasites obtain their nourishment from other living organisms. In parasitic mode of nutrition, plants depend on other plants or animals for their nourishment. Such plants are called as parasites and the ones on which parasites depend are called as hosts. 

e.g.Mistletoe is another parasitic plant which depends on other organisms for its nourishment.e.g.Cuscuta is a parasitic plant which develops special roots called haustoria. Haustoria penetrate deep into host plant tissues and just absorb the nutrients from them.

b) Insectivorous mode:
These are the plants with special leaves that are modified into special structures. These structures have the ability to trap the organisms.

e.g. Nepenthes is otherwise called as pitcher plant has its leaves modified into pitchers closed with leaves. These have a network of fibres which entangle the trapped organism and later digest it by secreting some hydrolysing enzymes to digest them.e.g. Venus fly trap feeds on small animals and insects to obtain their nourishment. These plants especially obtain the nitrogen they require from insects and small animals.

c) Saprophytic mode:  
The plants which exhibit saprotrophic mode of nutrition are called as saprotrophs. Saprotrophs are the plants that obtain their nutrition from dead and decaying organic matter. Saprotrophs secrete digestive juices onto dead and decaying matter to dissolve it and then absorb nutrients from it.

e.g. Indian pipe which is found on dead and rotting material, inhabits fungus in its roots. These extend their mycelium and secrete enzymes to digest the decaying matter.e.g. Coral roots are another type of plants exhibiting saprophytic nutrition.

Answer 2

A Parasite is a plant Which derives their nutrition from another latter
Eg: Cuscutta
A Insectivores plant is a plant which are partially heterotrops which derives their nutrition from soil atmosphere and insects
Eg: Pitcher Plant
And saprophytic plants are those who derive their nutrition from dead and decaying matter
Eg;Indian Pipe
Green plants are autotrops which can make their own food by photosynthesis