BSc Sem VI 2022 2023 Apr 2023 BOTANY PLANT DIVERSITY III Question Paper - Mumbai University | munotes

Questions asked in this paper

• 2) Figures to the right indicate full marks

1. Q1 Answer any TWO of the following: 20 marks
   • A) Describe the internal structure of Marchantia thallus and add a note on its
   • B) Sketch, label and describe the sporophyte of Pellia
   • C) Explain the structure of archegoniophore of Sphagnum
   • D) Explain the structure of antheridiophore of Marchantia
2. Q2 Answer any TWO of the following: 20 marks
   • A) Describe different types of steles seen in different species of Lycopodium
   • B) Describe the L.S of strobilus of Equisetum
   • C) Give an account of internal structure V.S. of sporocarp of Marsilea
   • D) Explain with the help of schematic diagram “alternation of generation in
3. Q3 Answer any TWO of the following: 20 marks
   • A) Describe the “Retrogressive evolution” theory of gametophytes in Bryophytes
   • B) Explain economic importance of bryophytes giving suitable examples
   • C) With the help of neat labeled diagrams explain different types of sori found in
   • D) Write a note on ecological habitats of bryophytes
4. Q4 Answer any TWO of the following: 20 marks
   • A) Write a detailed account of the ovulate strobilus of Biota (Thuja). Add a note on the structure of ovule
   • B) Give the systematic position of Thuja and comment on the external morphology of
   • C) Describe the internal structure of young stem of Ephedra
   • D) Give an account of habit, external features of Gnetum and give the systematic position of the same
5. Q5 Write Short Notes on: (any FOUR) 20 marks
   • a) Systematic position of Sphagnum
   • b) L.S of Lycopodium cone
   • c) Xerophytic and hydrophytic features in Equisetum
   • d) Distribution of pteridophytes
   • e) Bryophytes as bioindicators of air pollution
   • f) Megasporangiate strobilus of Ephedra

Read from the scan above, so a character or two may differ. The scan is the original.