DoorstepTutor (NEET, JEE, IMO, NSO, NTSE...)'s video: Biological Classification: NCERT Class 11 Biology Chapter 2 NEET Crash Course MCAT Questions

NEET: https://www.doorsteptutor.com/Exams/NEET/ NSO: https://www.doorsteptutor.com/Exams/NSO/ NTSE: https://www.doorsteptutor.com/Exams/NTSE/ NSTSE: https://www.doorsteptutor.com/Exams/NSTSE/ AIIMS: https://www.doorsteptutor.com/Exams/AIIMS/ Exam Preparation - https://www.doorsteptutor.com/Exams/ More interesting topics subscribe at TestPrep: https://www.youtube.com/c/TestPrep NCERT, Yojana, Kurukshetra, Down to Earth, Science, Social Studies and More interesting topics subscribe at Examrace: https://www.youtube.com/c/Examrace NCERT, Yojana, Kurukshetra, Down to Earth, Science, Social Studies and More interesting topics subscribe at ExamraceHindi: https://www.youtube.com/c/ExamraceHindi For kids learning with kids videos subscribe to FunProf: https://www.youtube.com/c/FunProf Websites https://www.examrace.com https://www.doorsteptutor.com https://www.flexiprep.com https://www.examtestprep.com https://www.jobduniya.com Dr. Manishika Jain in this video explains The Living World: NCERT Class 11 Biology Chapter 1 | Target NEET Crash Course | MCAT References for study: Biology Part 1 - https://amzn.to/2IRBBv7 (Trueman's) Biology Part 2 - https://amzn.to/2Iwx5mv (Trueman's) Chemistry Part 1 - https://amzn.to/2rYs9LR (Dinesh) Chemistry Part 2 - https://amzn.to/2IAwaNI (Dinesh) Physics Part 1 - https://amzn.to/2IzstMt (Dinesh) Physics Part 2 - https://amzn.to/2rV5CR7 (Dinesh) Monera – bacteria, occur everywhere spherical (coccus); rod shaped (bacillus); Vibrio (comma shaped) and Sprillium (spiral) – photosynthetic or chemosynthetic autotrophs Archaebacteria – harsh climate salt (halophiles); hot spring (thermoacidophiles) and marshy areas (methanogens) – have different cell wall structure and methanogens in gut of animals which produce methane from cowdung Eubacteria – true bacteria – rigid cell wall and flagellum if motile Cynobacteria (BGA) – unicellular, filamentous, fresh or marine water, terrestrial. Colonies surrounded by gelatinous sheath – bloom in polluted water and fix atmospheric nitrogen. Chemosynthetic autotrophic bacteria – oxidize nitrate, nitrite, ammonia and use released energy for ATP production Heterotrophic bacteria – most abundant, decomposers, make curd from milk, antibiotics, fix nitrogen in legumes Produce by fission or spores Mycoplasma – small living cells that can survive without oxygen Phycomycetes – aquatic habitat, decaying wood in moist and damp places; obligate parasite on plants, aseptate and coenocytic. Asexual reproduction by zoospore (motile) and aplanospores (non-motile) – endogenously produced in sporangium. Zoospore by fusion of 2 gametes – Mucor, Rhizopus, Albugo (parasite on mustard) Ascomycetes – sac fungi, multicellular (Penicillium) or unicellular (yeast) – saprophyte, decomposer, parasitic, coprophilous (on dung). Mycelium is branched and septate . Asexual are conidia – exogenously on conidiophores to produce mycelium. Sexual spores are ascospores produced endogenously – Aspergillus, Claviceps and Neurospora Basidiomycetes – mushrooms or puffballs – soil, log or tree stumps. Mycelium is branched and septate. Asexual not found and vegetative reproduction by fragmentation. Sex organs are absent and plasmogamy by fusion of gametes – gives rise to basidium (produce 4 basidiospores produced exogenously on basidium). Fruits called basidiocarps – Agaricus, Ustilago, Puccinia Deuteromycetes – imperfect fungi as only asexual or vegetative phase is known – if perfect sexual stage is discovered then it is – can moved to ascomycetes or basidiomycetes. Produces by asexual spores or conidia. Mycelium is branched and septate - can be saprophytes or decomposers – Alternaria, Trichoderma. Chapter MCQs - https://www.youtube.com/watch?v=nk4GaPXs7BM