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Plus One Biology - Biological Classifications - ഈ ചോദ്യങ്ങൾ പഠിച്ചാൽ 14 മാർക്ക് ഉറപ്പ് |XylemPlusOne

Xylem Plus One・2 minutes read

The Botany Onam Examination focuses on Biological Classification, covering two kingdom and five kingdom classifications, including Bacteria, Protista, Fungi, Plants, and Animals. Questions range from one to three marks and cover topics like fermentation, plant diseases caused by viruses, and the proposal of the five kingdom classification by RH Whittaker in 1969.

Insights

  • The Botany Onam Examination focuses on Biological Classification, covering two kingdom and five kingdom classifications, including Bacteria, Amoeba, Protista, Fungi, Plants, Animals, viruses, viroids, prions, and lichens.
  • Questions in the exam range from one to three marks, covering topics like identifying kingdom characteristics, symbiotic associations, plant diseases caused by viruses, and the process of meiosis in fungi, emphasizing the importance of understanding classification, symbiosis, and reproductive cycles in biological organisms.

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Recent questions

  • What are the two primary kingdom classifications in Botany?

    Bacteria, Amoeba

  • What are examples of entities discussed in the Botany Onam Examination?

    Viruses, viroids, prions, lichens

  • What is the significance of yeast in Botany?

    Crucial for fermentation in bread and beer

  • What are examples of plant diseases caused by viruses?

    Mosaic disease in tobacco

  • What is the main criteria for classification based on evolution in Botany?

    Proposal of the five kingdom classification by RH Whittaker in 1969

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Summary

00:00

Botany Onam Exam: Kingdoms, Questions, Examples

  • The discussion focuses on the Botany Onam Examination and the questions awaiting students.
  • The primary topic is Biological Classification, specifically covering two kingdom and five kingdom classifications.
  • The kingdoms discussed include Bacteria, Amoeba, Protista, Fungi, Plants, Animals, and entities like viruses, viroids, prions, and lichens.
  • The exam pattern includes one, two, and three-mark questions, with a variety of topics covered.
  • Examples of one-mark questions include identifying the kingdom with Holozoic nutrition as Animalia and naming a unicellular fungus as yeast.
  • Bacteriophages are viruses that infect bacteria, and rust disease is caused by fungi like Paxinia in the Basidiomycetes group.
  • The kingdom Protista represents unicellular eukaryotes, while unicellular prokaryotes are found in the Monera kingdom.
  • Yeast is crucial for fermentation in bread and beer, and the genetic material is the infectious part of a virus.
  • Two-mark questions may involve identifying diagrams like heterocysts in Cyanobacteria and naming rust and smut-causing fungi.
  • The symbiotic associations of fungi include lichens with algae and mycorrhiza with plant roots.
  • Plant diseases caused by viruses include mosaic disease in tobacco, with symptoms visible externally.
  • Capsid protects viral nucleic acids, and vegetative reproduction in fungi involves methods like fragmentation.
  • Three-mark questions may cover the proposal of the five kingdom classification by RH Whittaker in 1969 and the main criteria for classification based on evolution.
  • Sexual spores in fungi include examples like zygospores, ascospores, and basidiospores, with stages like plasmogamy in the sexual cycle explained.

24:33

"Meiosis in zygotes and virus survival"

  • Meiosis occurs in a zygote, leading to the production of haploid spores. The fusion of two protoplasms results in a single protoplasm, with paired nuclei that eventually fuse, leading to the production of four spores.
  • Viruses are considered non-living entities that rely on hosts for survival, functioning as obligate parasites. Lichens consist of mutually beneficial associations between algae (phyco bion) and fungi (myco bion), with the algal component known as phycobiont and the fungal component as mycobiont.
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