Unit 17: Plant Kingdom study note NMMS 8th
Here is a comprehensive study note guide for Unit 17: Plant Kingdom , specifically tailored for NMMS and TNPSC exam preparation . These notes cover all classifications, specific examples, scientific names, economic importance, and medicinal uses mentioned in the text. Unit 17: Plant Kingdom I. Introduction to Plant Kingdom Classification: Cryptogams (Non-flowering): Thallophyta (Algae, Fungi), Bryophyta, Pteridophyta. Phanerogams (Flowering): Gymnosperms, Angiosperms. Species Estimation: 8.7 million species on Earth (6.5 million on land, 2.2 million in ocean). 400,000 are flowering plants. II. Algae (Thallophyta) Characteristics: Simple, primitive, chlorophyll-bearing autotrophs. Plant body is a thallus (no root, stem, leaf). Mostly aquatic. Study: Phycology or Algology. Reproduction: Vegetative: Fragmentation (e.g., Spirogyra ). Asexual: Spore formation (e.g., Chlamydomonas ). Sexual: Fusion of gametes (e.g., Spirogyra, Chara ). Classification based on Pigments: | Class...