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A Firstranker's choice
Time : Three Hours] [Maximum Marks : 80
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B.Sc. (Part-I) (Semester-1) Examination
BOTANY
Diversity & Applications of Microbes and Cryptogams
Note :— (1) There are seven questions in all.
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(2) Q. No. 1 is compulsory and carries 8 marks.
(3) Q. Nos. 2-7 carry equal marks.
(4) Draw neat and well labelled diagrams wherever necessary.
AW-1626
1. (A) Fill in the blanks :
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(i) Microorganism which grows on dead and decaying organic matter is known as __________
(ii) The air bladders are present in __________ algae.
(iii) White rust of crucifer is caused by __________
(iv) Gemma cup is found in __________
(B) Choose the correct alternatives (MCQ) :
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(v) Male Sex Organ in Chara is known as :
(a) Nucule (b) Spermatium
(c) Globule (d) Carpogonium
(vi) Teleutospores in Puccinia are .
(a) One celled (b) Two celled
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(c) Three celled (d) Four celled
(vii) The spore producing organ in Equisetum is :
(a) Sporocarp (b) Strobilus
(c) Synangium (d) Zoosporangium
(viii) AIDS disease is caused by
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(a) HIV (b) TMV
(c) Bacteria (d) Fungi
(C) Answer in one sentence :
(ix) What is Fertilization ?
(x) Which Fungus causes Tikka Disease of Groundnut ?
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(xi) What is Protostele ?
(xii) What are Lichens ?
2. Explain :
(a) General characters of Cryptogams.
(b) Structure of TMV.
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(c) Role of microbes in Agriculture.
OR
(d) Cell structure of Bacteria 4
(e) Autotrophic Bacteria 4
(f) Role of microbes in medicine. 4
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3. Describe in detail structure of Thallus and Asexual Reproduction in Oedogonium. 12
OR
Explain :
(g) Thallus structure in Sargassum 6
(h) Sex Organs in Chara 6
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4. Explain :
(i) Sex Organs in Albugo 4
(j) Telial stage in Puccinia 4
(k) General characters of Deuteromycotina 4
OR
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(l) Asexual Reproduction in Aspergillus 4
(m) Uredial stage in Puccinia 4
(n) Economic importance of Lichens 4
5. Explain :
(o) L.S. of Antheridiophore of Marchantia 6
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(p) L.S. of Capsule in Funaria 6
OR
(q) L.S. of Antheridial branch in Funaria 6
(r) L.S. Sporophyte of Marchantia 6
6. Explain :
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(s) Types of Siphonostele in Pteridophytes 4
(t) L.S. of Strobilus in Equisetum 4
(u) T.S. of Marsilea Petiole 4
OR
Draw well labelled diagrams only 4
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(v) T.S. Aerial Stem of Equisetum (Internode) 4
(w) T.S. Rhizome of Marsilea 4
(x) L.S. Sporocarp of Marsilea 4
7. Explain :
(y) Economic Importance of Algae in Food 4
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(z) Black arm of cotton 4
(a) Types of Mycorrhiza 4
OR
(b) Role of Fungi in medicine 4
(c) Tikka disease of Groundnut 4
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(d) Harmful Aspects 4
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