Description
| Course Code : | BBYCT-135 |
|---|---|
| Course Title : | Plant Anatomy and Embryology |
| Medium : | English Medium |
| Program : | BSCG / B.Sc (CBCS) |
| Maximum Marks : | 100 |
| Weightage : | 30% |
| Session : | Valid from 1st Janaury, 2021 to 31st December, 2021 |
| Submission : | Submit it by 31st December, 2021 |
| Solution Type : | Softcopy (PDF File) |
ASSIGNMENT
Plant Physiology and Metabolism
Course Code: BBYCT-135
Assignment Code: BBYCT-135/TMA/2020-2021
Maximum Marks: 100
Note: Attempt all questions. The marks for each question are indicated against it.
PART-A
1. a) Define the following terms : (½×10=5)
i) Osteosclereids
ii) Quiescent center
iii) Mangroves
iv) Adventive embryos
v) Tyloses
vi) Phelloderm
vii) Dichogamy
viii) Heterophylly
ix) Apomixis
x) Cross pollination
b) Describe in brief the various morphological and anatomical adaptations in xerophytes with diagrams.
2. a) Discuss the criteria of essentiality of a mineral nutrient. (5)
b) Describe the process of transport of ions across plasma membrane. (5)
3. a) Compare the structures of a primary and secondary root also give diagram. (5)
b) Differentiate between monocot and dicot leaf with labelled diagram. (5)
4. a) Describe secondary growth in dicot stem with labelled diagram. (5)
b) Discuss theories of shoot apical organization with diagrams. (5)
5. a) Describe specialised epidermal cells with labelled diagram and its role in plants. (5)
b) The pollen tube enters the embryo sac via three different routes. Explain and enumerate the advantages of cross pollination. (5)
6. a) Explain the various stages of embryo development in plants with the help of illustrations. (5)
b) Explain the phenomenon of double fertilization in angiosperms with the help of a well labelled diagram. What is the role of endosperm in plants? (5)
7. a) Describe the structure of a mature embryo sac with labelled diagram. (5)
b) Describe dispersal mechanisms found in seed. (5)
8. a) What is parthenocarpy. Describe various types of parthenocarpy found in plants. (5)
b) Explain incompatibility and describe its types and significance. (5)
9. Differentiate between: (2×5=10)
i) Heartwood and sapwood
ii) Porous and non-porous wood
iii) Dicot stem and monocot stem
iv) Glandular and non-glandular trichomes
v) Open and closed style
10. Write short notes on: (2×5=10)
i) Tyloses
ii) Aerial roots
iii) Rhizomes
iv) Cambial variant in stems
v) Dendrochronology
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