Dear Student,

We hope you are familiar with the system of evaluation to be followed for the Bachelor’s Degree Programme. At this stage you may probably like to re-read the section on assignments in the Programme Guide for Elective Courses that we sent you after your enrolment. A weightage of 30 per cent, as you are aware, has been earmarked for continuous evaluation which would consist of one tutor-marked assignment for this course.

Instructions for Formatting Your Assignments

Before attempting the assignment please read the following instructions carefully.

1)On top of the first page of your TMA answer sheet, please write the details exactly in the following format:

ENROLMENT NO:……………………………………………

NAME:……………………………………………

ADDRESS:……………………………………………

……………………………………………

……………………………………………

COURSE CODE: …………………………….

COURSE TITLE: …………………………….

ASSIGNMENT NO.: ………………………….…

STUDY CENTRE: ………………………..…..DATE: ……………………….………………...

PLEASE FOLLOW THE ABOVE FORMAT STRICTLY TO FACILITATE EVALUATION AND TO AVOID DELAY.

2)Use only foolscap size writing paper (but not of very thin variety) for writing your answers.

3)Leave 4 cm margin on the left, top and bottom of your answer sheet.

4)Your answers should be precise.

5)While solving problems, clearly indicate the question number along with the part being solved. Be precise. Recheck your work before submitting it.

Answer sheets received after the due date shall not be accepted.

We strongly feel that you should retain a copy of your assignment response to avoid any unforeseen situation and append, if possible, a photocopy of this booklet with your response.

We wish you good luck.

ASSIGNMENT

Course Code: LSE-12

Assignment Code: LSE-12 /TMA / 2009

Max. Marks: 100

  1. Describe the main features of the five kingdom scheme of classification of organisms by

giving two examples of each kingdom. (10)

  1. Make a pie-diagram to depict the relative abundance of the species of Prokaryotes, Fungi,

Algae, Bryophytes, Pteridophytes, Gymnosperms and Angiosperms with break-up into

Monocots and Dicots. You may use the figures for these categories as given in

Section 1.9 of Block 1A of your course material. (5)

  1. List the characteristics of Cyanobacteria. Why are the Cyanobacteria considered important

for evolutionary studies? (5)

  1. Depict the following with clear and labelled diagrams:

a) Morphological structure of a thallus of Fucus

b) Cross section of an apothecium

c) Vertical transverse section of a thallus of Anthoceros showing mucilage canals

d) A portion of t.s. of internode of an aerial fertile branch of Equisetum (5×4)

  1. Explain by giving examples and making illustrations the basic types of life cycles in Algae.(8+2)
  1. Write two features for the identification of the various divisions of the eukaryotic Algae.(4+1)
  1. How would you distinguish Fungi from other groups of organisms on the basis of their

morphological features? (5)

  1. With the help of a suitable example discuss the concept of alternation of generation

in Fungi. (8+2)

  1. Prepare an account on the evolutionary trends in the structure of the sporophyte of Bryophytes. (5)
  1. ‘The occurrence of Bryophytes at particular sites indicates specific ecological conditions’.

Justify this statement with suitable examples. (10)

  1. Compare the Bryophytes and the Pteridophytes for their similarities as well as differences.(5+5)
  1. What makes the Ferns the ideal systems for experimental studies?(5)