Biology · Class 11 · Chapter 3
Plant Kingdom
12 lessons 90 min 2 simulations
This chapter takes Whittaker's Kingdom Plantae apart group by group. It opens with how plant classification moved from artificial systems to natural and then phylogenetic ones, helped today by numerical taxonomy, cytotaxonomy and chemotaxonomy. It then describes the algae and their three classes, the bryophytes (liverworts and mosses), the pteridophytes, the gymnosperms and, briefly, the angiosperms, following one thread throughout: which phase of the life cycle is the main plant, and how much each group still needs water to reproduce.
What the exam asks
NEET usually takes a couple of questions from this chapter. The favourites are Table 3.1 (pigments, stored food, wall and flagella of green, brown and red algae), isogamy, anisogamy and oogamy with their examples, the commercial products of algae (algin, carrageen, agar, Chlorella), the dominant haploid gametophyte of bryophytes, gemmae and protonema, the dominant sporophyte and prothallus of pteridophytes, heterospory in Selaginella and Salvinia as a precursor to the seed habit, the four pteridophyte classes with examples, and gymnosperm features such as coralloid roots of Cycas, mycorrhiza of Pinus, and pollen grains and ovules on cones.
Lessons
12 lessons · 90 min
1How plant classification changedNCERT §3 (introduction)7 min2Algae: body and reproductionNCERT §3.110 min 1 sim3Why algae matterNCERT §3.16 min4Green, brown and red algaeNCERT §3.1.1–3.1.3, Table 3.17 min5Bryophytes: amphibians of the plant kingdomNCERT §3.26 min6Liverworts and mossesNCERT §3.2.1–3.2.26 min7PteridophytesNCERT §3.310 min 1 sim8Homospory, heterospory and the seed habitNCERT §3.35 min9Gymnosperms: naked seedsNCERT §3.46 min10Gymnosperm cones, pollen and ovulesNCERT §3.46 min11AngiospermsNCERT §3.55 min12Chapter reviewMust-know facts, traps and formulas16 min