BBYCT-135 EM 2025 SOLVED ASSIGNMENT

Description

Bachelor’s Degree Programme
(BSCG)
BBYCT-135: Plant Anatomy and Embryology
Valid from 1st January, 2025 to 31st December, 2025
ASSIGNMENT
Course Code: BBYCT-135
Assignment Code: BBYCT-135/TMA/2025
Maximum Marks: 100
Note: Attempt all questions. The marks for each question are indicated against it.
1. a) Define the following terms :
i) Quiescent center
ii) Mangroves
iii) Adventive embryos
iv) Tyloses
v) Dichogamy
vi) Apomixis
vii) Cross pollination
viii) Osteosclereids
ix) Phelloderm
x) Heterophylly

(1×10=10)

2. a) Enlist the major characteristic features of halophytes.
b) List various types of simple and complex tissues. Describe complex
tissues with suitable diagrams.
(5)
(5)
3. Describe the structure of embryo sac with the help of a well labelled
diagram.
(10)
4. a) List various types of ovules and describe them with outline
diagrams.
b) Define apomixis and list its types. Discuss various causes of
apomixis and its importance.
(5)
(5)
5. Enlist the categories of xerophytes. Describe the morphological and
anatomical adaptations found in xerophytes.
(3+7=10)
6. a) What is parthenocarpy. Describe various types of parthenocarpy
found in plants.
b) Explain incompatibility and describe its types and significance.
(5)
(5)
7. With the help of well labeled diagram describe the ABC Model of Flower
Organization.
(10)
8. Describe syngamy and triple fusion in angiosperms with the help of a well
labelled diagram. Enlist the major functions of endosperm in plants.
(10)
9. Differentiate between:
i) Porous and non-porous wood
ii) Dicot stem and monocot stem
iii) Open and closed style
iv) Heartwood and sapwood
v) Glandular and non-glandular trichomes
(2×5=10)

10.
Write short notes on:
(2½×4=10)
i)
ii)
iii)
Aerial roots
Rhizomes
Cambial variant in stems
iv) Dendrochronology