(a) Describe Trypanosoma and Paramoecium on the basis following features
(i) Locomotory structure
(ii) Habit and habitat
(b) Give names of the major chlorophyll pigments present in chief producers of ocean
(c)Mention any two animal like features of slime moulds.
(d) Give examples of edible fruiting body containing members of Ascomycetes.
(e) Describe the features of members of Deuteromycetes on the basis following criteria
(i)Type of mycelium
(ii) Most commonly produced spores
Answers
Explanation:
(a) Locomotion of Paramecium Caudatum: Paramecium Caudatum performs locomotion by two methods, viz., metaboly or body contortions and by cilia.
(b)Green algae and plants possess two forms of this pigment: chlorophyll a and chlorophyll b. Kelps, diatoms, and other photosynthetic heterokonts contain chlorophyll c instead of b, while red algae possess only chlorophyll
(c)There are two large groups: the cellular slime molds (dictyostelids), such as Dictyostelium, and the acellular slime molds (myxomycetes), such as Physarum.
(d)Edible fungi mainly include all the edible mushrooms. Some of the examples are:
A truffle is the fruiting body of a subterranean ascomycete fungus, one of the many species of the genus Tuber.
(e)Deuteromycetes occur mostly as saprophytes on a wide range of substrates, but a large number of them are parasites on plants and animals (including humans) and cause a variety of diseases.
Leaf- spots, blights, blotch, wilts, rots, anthracnose, etc. are the important diseases of plants, while diseases like meningitis, candidiasis, skin diseases, nail diseases, dermatomycosis as ringworms, athlete’s foot, etc. occur in animals (including humans).