BOT/II/EC/03 Student's Copy
2 0 1 8
CBCS
2nd Semester
BOTANY
SECOND PAPER
Phanerogams
Full Marks 75
Time 3 hours
PART A—OBJECTIVE
Marks 25
The figures in the margin indicate full marks for the questions
SECTION—A
Marks 10
Tick the correct answer in the brackets provided 1×10=10
1. In which of the following, coralloid roots are absent?
Cycas
Gnetum
Both and
None of the above
2. Winged pollen grain is found in
Cycas
Gnetum
Pinus
All of the above
3. Monadelphous stamen is found in the family
Rosaceae
Rubiaceae
Acanthaceae
Malvaceae
/315 1 Contd.
4. Spikelet inflorescence is the characteristic of the family
Acanthaceae
Lamiaceae
Asteraceae
Poaceae
5. Mesophyll cells are found in
leaf
steam
root
All of the above
6. In vascular bundle, cambium is a
meristematic tissue
sclerenchyma
parenchyma
None of the above
7. The process of double fertilization was discovered by
S. G. Nawaschin
Hofmeister
Strasburger
P. Maheswari
8. Female gametophyte of a typical dicot plant at the time of fertilization is
8-celled
6-celled
7-celled
4-celled
9. In jute, fibre is obtained from
phloem
xylem
pericycle
medullary ray
10. In coconut, edible oil is extracted from
epicarp
mesocarp
endocarp
endosperm
BOT/II/EC/03/315 2 Contd.
SECTION—B
Marks 15
Write notes on the following in brief 3×5=15
1. Nucellus
OR
Polyembryony in pinus
2. Verticillaster inflorescence
OR
Interpetiolar stipule
3. Radial vascular bundle
OR
Conjoint and collateral vascular bundle
4. Triple fusion in Angiosperms
OR
Microsporogenesis
5. Cereals-yielding plants
OR
Spices-yielding plants
PART B—DESCRIPTIVE
Marks 50
The figures in the margin indicate full marks for the questions
Answer five question, taking one from each Unit
Unit—I
1. Describe briefly with suitable diagrams, morphology and reproduction
in Cycas. 10
2. Describe the reproduction of Gnetum in brief with the help of diagram. Why
is Gnetum regarded as the most advanced amongst gymnosperms? 6+4=10
BOT/II/EC/03/315 3 Contd.
Unit—II
3. Describe the distinguishing characters of any two of the following families
5×2=10
Asteraceae
Lamiaceae
Cucurbitaceae
4. Write the distinguishing features of the family Poaceae. Mention at least
five important members of this family with their scientific names. 5+5=10
Unit—III
5. Give an account of the female gametophyte with neat labelled diagram. 10
6. What is endosperm? Write an account on different types of endosperm
development in Angiosperms. 2+8=10
Unit—IV
7. Describe the internal structure of monocot root with neat labelled diagram.
Mention the anatomical difference between dicot root and monocot root. 6+4=10
8. Describe the anomalous secondary growth in Bignonia stem with neat
labelled diagram. Mention how anomalous secondary growth differs from
normal secondary growth. 6+4=10
Unit—V
9. Write notes on the following 5×2=10
Timber-yielding plants
Fats and oils-yielding plants
10. Describe the economic importances of the following plants mentioning
their scientific names and families 2×5=10
Rice
Tea
Lentil
Jute
Cardamom