Endosperm – Most monocot seeds are endospermic (e.g., maize), meaning they store food in the endosperm. However, some (e.g., orchids) are non-endospermic.Seed Coat & Fruit Wall – In cereals like maize, the seed coat is thin and fused with the fruit wall.Aleurone Layer – A protein-rich layer that separates the endosperm from the embryo.Embryo – Small and located in a groove at one end of the endosperm, consisting of:
Seed Coat – The outer protective covering of the seed, consisting of: Hilum – A scar on the seed coat where the seed was attached to the fruit.Micropyle – A small pore located above the hilum, allowing water absorption during germination.Embryo – The developing plant inside the seed, consisting of: Types of Dicot Seeds:
Definition Structure of a Seed A typical seed consists of two main parts: Components of the Embryo The embryo is the most vital part of the seed and is composed of: Seeds play a crucial role in plant reproduction, dispersal, and germination, ensuring the continuation of plant life.
Types of Carpels Post-Fertilization Changes Placentation (Arrangement of Ovules in the Ovary)
Aestivation Definition: The mode of arrangement of sepals or petals in a floral bud, in relation to other members of the same whorl. Types of Aestivation:
The outermost whorl of a flower, composed of sepals.Function: Protects the flower in the bud stage and provides structural support.Characteristics:
Parts of a Flower – Introduction A flower is the reproductive structure of angiosperms and is typically composed of four floral whorls arranged in a specific order. These whorls are distinct sets of floral organs, each serving a specific function in the structure and reproduction of the plant. The four floral whorls are: These floral...
Definition: The reproductive unit of angiosperms, responsible for sexual reproduction.Parts of a Flower: Types of Flowers: Flower Symmetry: Floral Structure Based on Number of Parts: Bract Presence: Position of Ovary on Thalamus: