M.Sc. (Semester (CBCS) Examination Mar/Apr-2018
Botany
BIOLOGY AND DIVERSITY OF ALGAE, BRYOPHYTES AND PTERIDOPHYTES
Time: 2½ Hours
Max. Marks: 70
Instructions: All sections are compulsory. Attempt any two questions from section II and any two from section III. Answer to all the three sections should be written in the same answer book. Draw neat and labeled diagrams wherever necessary. Figures to be right indicate full marks.
SECTION I
Q.1
Select the correct answer from the given alternatives and rewrite the sentences:-
14
The chlorophyll a and b are found in the members of the class
Chlorophyceae
Charophyceae
Euglenophyceae
All the above
Sexual reproduction is absent in the class
Cyanophyceae
Charophyceae
Euglenophyceae
Chlorophyceae
are the unicellular forms of algae.
Chlamydomonas
Chlorella

Euglena
All the above
Heterotrichous habit is observed in
Nostoc
Oscillatoria
Ectocarpus
Oedogonium
The prokaryotic cells are observed in the members of the class
Cyanophyceae
Charophyceae
Euglenophyceae
Chlorophyceae
Among the bryophytes, the members of order are much evolved.
Marchantiales
Anthocerotales
Polytrichales
Jungermanniales
Plastid are absent in the class
Cyanophyceae
Charophyceae
Euglenophyceae
Chlorophyceae
Septate rhizoids are present in the members of
Marchantiales
Sphagnales
Anthocerotales
Jungermanniales
Equisetum belongs to the class
Psilopsida
Lycopsida
O
Sphenopsida
Pteropsida
10) Haplostele is present in the stem of
Ophioglossum
Psilotum
Selaginella
Marsilea
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SLR-UD-113
11) Sporophyte is parasitic on the gametophyte in the members of
Pteridophytes
Algae
Bryophytes
All the above
12) are considered as the vascular cryptogams.
Algae
Bryophytes
Fungi
Pteridophytes
13) Stele includes
Endodermis
Pericycle
Vascular bundles and pith
All the above
14) members of pteridophyte are homosporus in nature.
Psilotum
Equisetum
Both a and b
Selaginella
SECTION II
Q.2
Give the salient features of the class Chlorophyceae and state the interrelationship between chlorophyceae and phaeophyceae.
07
Add a note on the Ultra structure of algal cell.
07
Q.3
Explain the diversity in bryophyte with respect to thallus structure and interrelationship between the order Marchantiales and Anthocerotales.
07
Define stele and add a note on the stellar evolution in Pteridophyte.
07
Q.4
Give an account of isolation, culture and preservation of algae.
Discuss the modern trends of classification of Pteridophyte.
14
SECTION III
Q.5
Add a note on telome concept.
05
Describe the method of sexual reproduction in the members of sphagnales.
05
Describe the unicellular forms of algae.
04
Q.6
Write the economic importance of bryophytes.
05
Describe the asexual method of reproduction of algae.
05
Give the salient features of the class Pteropsida.
04
Q.7
Give an account sexual reproduction in Equisetum.
05
Describe the modern trends of classification of bryophytes.
05
Add a note on aquatic forms of algae.
04