Time allowed: Three Hours Maximum Marks: 200
SECTION –A
1.
Answer any FOUR
of the following (answers should not exceed 150 words in each case):
(a)
Differentiate between the following (Give
examples and diagrams wherever necessary):-
(i)
Zoospore and compound Zoospore.
(ii)
Obligate and facultative parasites.
(iii)
Ascospore and auxospore
(iv)
Archegonium and carpogonium.
(b)
Write short notes on:-
(i)
Heterocyst in blue green algae.
(ii)
Interferon.
(iii)
Plurilocular sporangia in Ectocarpus.
(iv)
Heteromorphic life cycle in Phaeophyceae (Give a
diagrammatic Sketch)
(c)
Write short notes on:-
(i)
Thallus of Penicillium
(ii)
Thallus structure of Saprolegnia.
(iii)
Alternation of generations in slime molds
(Pictorial Presentation of life cycle)
(iv)
Cleistothecium in erysiphe.
(d)
Answer the following:
(i)
Gametophytic phase in Laminaria
(ii)
Munisipal waste treatment by anaerobic and
aerobic microorganisms.
(iii)
L.S. of sporocarp of Marsilea (Labelled diagram
only)
(iv)
Cultivation of edible mushroom (Volvariella
sps.) steps leading to sprouting of basidiocarp.
(e)
Write notes on:-
(i)
Control of Viral diseases of plants.
(ii)
Economic importance of Diatomaceous earth.
(iii)
T.S. of Equisetum stems (Diagram only).
(iv)
Nucule of Chara.
2.
(a) With the help of labeled diagrams only, show
the evolutionary trend in the steles of pteridophyta.
(b)Write
an account of the importance of bacteria in soil fertility.
3. (A) Discuss
the morphological nature of rhizophore of selaginella. Draw a neat labeled
diagram of T.S. of rhizophore.
(b) With the help of diagrams, describe the
structure of Marchantid antheridophore.
4.
Draw neat
labeled diagrams of the following:
(i)
Anatomy of Equisetum cone.
(ii)
Cross- section of the gametophystic thallus of
Riccia.
(iii)
Life cycle of Ectocarpus- (Pictorial
presentation only)
(iv)
Structure of prothallys of Adiantum.
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