BOT/VI/09 Student's Copy
2 0 1 8
6th Semester
BOTANY
NINTH PAPER
Pteridophyta, Gymnosperm, Paleobotany and Palynology
Full Marks 55
Time 2½ Hours
PART A—OBJECTIVE
Marks 20
The figures in the margin indicate full marks for the questions
SECTION—A
Marks 5
Tick the correct answer in the brackets provided 1×5=5
1. Which of the following is most primitive division?
Lycopsida
Psilopsida
Pteropsida
Sphenopsida
/513 1 Contd.
2. Sporocarp is formed in
Adiantum
Ophioglossum
Lepidodendron
Marselia
3. The archegonial neck of is the longest among the gymnosperms.
Ginkgo
Taxus
Ephedra
Gnetum
4. Megasporangium is a/an
pollen sac
ovule
seed
venter
5. Cordaites belongs to the class
Coniferopsida
Gnetopsida
Cycadopsida
Ginkgopsida
BOT/VI/09/513 2 Contd.
SECTION—B
Marks 15
Write notes on the following 3×5=15
1. Heterospory
2. Fertile spike of Ophioglossum
3. Morphology of Ephedra
4. Economic importance of gymnosperm
5. Pollen production
PART B—DESCRIPTIVE
Marks 35
The figures in the margin indicate full marks for the questions
1. Define stele. Describe the various types of stele.
OR
Answer any two in brief 3½×2=7
Differentiate between Eusporangiate and Leptosporangiate sporangia.
Write on the concept of the Telome theory by Zimmerman.
Describe the different types of sorus.
2. Describe the life history of Adiantum. 7
OR
Write the characteristics and distribution of Rhynia. 7
BOT/VI/09/513 3 Contd.
3. Describe the structure of male and female strobili of Ginkgo. 7
OR
Explain the male and female gametophyte of Taxus. 7
4. Give an account on the distribution of gymnosperm in India. 7
OR
Describe the structure and evolution of ovule in gymnosperms. 7
5. What is fossil? Describe the various types of fossil. 7
OR
Write notes on any two of the following 3½×2=7
Main Characters of Pteridospermales
Features of Lyginopteris
Pollen Morphology