Download SGBAU BSc 2019 Summer 1st Sem Botany Diversity n Applications Of Microbes n Cryptogams Question Paper

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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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