Gauhati University Question Papers for Botany 5th Semester Pass Course

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Paper: E 501 (Theory)

(Structure, Development and Reproduction in Flowering Plants)

UNIT I: Basic body plan of flowering plant, modular type of growth, diversity in plant forms – annuals, biennials and perennials, Histological organization of root and shoot apices, various theories of cellular organization

UNIT II: Types of tissue: Meristematic tissue – meristem, structure and types based on origin and position, Permanent tissue: Simple, Complex and Secretary, Epidermal tissue: Trichomes and Stomata.

UNIT III: Anatomy: Primary structure of root, stem and leaf of Monocot and Dicot, Secondary growth in root and stem, Wood anatomy: Growth rings, heart wood and sap wood, Periderm: Origin, structure and functions, Floral biology

UNIT IV: Embryology: Microsporogenesis and development of male gametophyte, megasporogenesis and development of female gametophyte, Double fertilization and its significance.

UNIT V: Development of dicot embryo, Structure, development and types of endosperms, Fruit: Development and maturation of fruit, types and parts of fruits, fruit dispersal strategies, Vegetative propagation: Grafting, layering and budding.

UNIT VI: Seed: Types of seed, germination of seeds-types and nature and dispersal of seeds, factors affecting germination