ICSE/ISC Board Exam: Revision Terminology Part 52

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Chemical Evolution

  1. Earliest atmosphere on earth – reducing.
  2. Formation of early molecules.
  3. Formation of simple org molecule.
  4. Formation of large org. molecule.
  5. Formation of complex biomolecule for miller – CH4, NH3, H2, H2o.
  6. Formation of coacervates abiotically synthesis on earth & came together due to intermolecular attraction – could divide & chemical reaction.
  7. Formation of protocells Clusters of nucleoprotein which surrounded org. subs for replication.
  8. 1st organism – heterotrophic, anaerobic, nucleoprotein.
  9. Progenote – single celled common ancestor of archebacteria, eubacteria & eukaryotes.
  10. Excretion – elimination of metabolic waster & undigested food from body toxic – NH3 > area > uric acid.
  11. Ascaris Ex eartherwom – NH3, urea.
  12. Urine – urochrome (from breakdown of Hb)
  13. Faeces – bilirubin + biliverdin
  14. Muscle – creatine phosphate.
  15. Concutrer current mech – overll to conc nace in the fluid & callse water to diffuse out in collecting tubules & concentrate the urine.
  16. Flatworms – Flame cells.
  17. Roundworms – H shaped cells.
  18. Annelida – nephridia.
  19. Arthropods – green gland (crustaceans) .
  20. Spiders – Coxal Gland.
  21. Unio – organ of Bojanus.
  22. Cephalochordates – Hatschck՚s nephridia.
  23. Ureter – transitional epithelium.
  24. Podocytes – lining of Bowman՚s capsule ultrafiltration areas.
  25. Trimethylamine oxide – marine teleost.

Developed by: