CBSE Class 11 Biology Chapter 3 - Plant Kingdom Class 11 Notes

Plant Kingdom Class 11 CBSE Revision Notes

This article deals with plant kingdom class 11 notes. Experts refer to the Kingdom Plantae as the plant kingdom. The plant kingdom is concerned with all the plants on the planet Earth. The understanding of experts regarding the plant kingdom has certainly changed with time. For example, experts no longer consider the fungi as part of the Plantae. Similarly, cyanobacteria, known, as the blue-green algae, is no longer considered as algae. Furthermore, the earliest systems made use of only gross superficial morphological characters. Moreover, such characters include the shape of leaves, habit, colour, number of leaves, etc.

Plant kingdom consists of pteridophytes, algae, bryophytes, angiosperms, and gymnosperms. Furthermore, in the life cycle of any sexually reproducing plant, alternation of generations takes place between the spore-producing diploid sporophyte and the gamete producing haploid gametophyte. Most noteworthy, various plant groups and individuals may exemplify multiple life cycle patters. Also, the major patterns of life cycles are diplontic, haplontic, and the intermediate is present in plant kingdom class 11 notes

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Sub-topics covered under Plant Kingdom

Classification within Kingdom Plantae– The classification within the Kingdom Plantae is a classification that involves all the plants on Earth.
Algae– Algae refers to a diverse group of aquatic organisms that can do photosynthesis.
Bryophytes– Bryophytes refers to non-vascular plants that are small in size and are crucial in regulating the ecosystem.
Pteridophytes– Pteridophytes refer to a vascular plant with no flowers or seeds and that disperses spores.
Gymnosperms– Gymnosperms are seed-producing plants and their seeds are not encased within an ovary.
Angiosperms– Angiosperms are vascular plants with leaves, stems, and roots and their seeds are in a flower.
Plant Life Cycles and Alternation of Generations– The plant life cycles are certainly complex due to the alternation of generations such the alteration between diploid sporophyte and haploid gametophyte generations.