" Plant Kingdom Chapter 3 CBSE Class 11 Biology NCERT Solutions, pdf, Videos, Notes, Question Bank, IIT, JEE


Green Alge

Green Alge



NCERT Solutions for Class 11 PUC Biology Chapter 3 - Plant Kingdom

The National Council of Education Research and Training (NCERT) (officaial wesite www.ncert.nic.in) sets the curriculum for all schools that follow the Central Board of Secondary Education (CBSE)(officaial wesite cbse.nic.in) across the nation. NCERT solutions for class 11 Biology Chapter 3 - Plant Kingdom has been written to help students understand all the content under Chapter 3 - Plant Kingdom in the textbooks prescribed by NCERT and as per the syllabus. The class 11 Biology NCERT solutions help students solve the exercises given in the textbooks and get good marks in their board exam. The book is structured in a step-by-step and logical manner, which allows the student to understand the concepts easily.
Class 11 Biology NCERT solutions for Chapter 3 - Plant Kingdom covers Topics such as ALGAE, , Chlorophyceae, Phaeophyceae, Rhodophyceae, BRYOPHYTES, Liverworts, Mosses, PTERIDOPHYTES, GYMNOSPERMS, ANGIOSPERMS and PLANT LIFE CYCLES AND ALTERNATION OF GENERATIONS.



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Chapter 3 - Plant Kingdom

Algae are chlorophyll-bearing, simple, thalloid, autotrophic and largely aquatic (both fresh water and marine) organisms. They occur in a variety of other habitats: moist stones, soils and wood. Some of them also occur in association with fungi (lichen) and animals (e.g., on sloth bear).
The algae reproduce by vegetative, asexual and sexual methods.



3.1 Algae

The members of chlorophyceae are commonly called green algae. The plant body may be unicellular, colonial or filamentous. They are usually grass green due to the dominance of pigments chlorophyll a and b. Chlorophyceae Phaeophyceae Rhodophyceae

Green Alge

Green Alge

3.2 Bryophytes

Bryophytes include the various mosses and liverworts that are found commonly growing in moist shaded areas in the hills. Liverworts Mosses

3.3 Pteridophytes

The Pteridophytes include horsetails and ferns. Pteridophytes are used for medicinal purposes and as soil-binders. They are also frequently grown as ornamentals. Evolutionarily, they are the first terrestrial plants to possess vascular tissues – xylem and phloem.

3.4 Gymnosperms

The gymnosperms (gymnos : naked, sperma : seeds) are plants in which the ovules are not enclosed by any ovary wall and remain exposed, both before and after fertilisation. The seeds that develop post-fertilisation, are not covered, i.e., are naked. Gymnosperms include medium-sized trees or tall trees and shrubs

3.5 Angiosperms

Unlike the gymnosperms where the ovules are naked, in the angiosperms or flowering plants, the pollen grains and ovules are developed in specialised structures called flowers.

3.6 Plant Life Cycles and Alternation of Generations

In plants, both haploid and diploid cells can divide by mitosis. This ability leads to the formation of different plant bodies - haploid and diploid. The haploid plant body produces gametes by mitosis.