Competitive Exams: Revision Terminology Part 15

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  • Biocoenosis – karl Mobius.
  • Microcosm – SA Forbes.
  • Geobiocoenosis - Sumaches.
  • Holocoen – friederichs.
  • Plant depend completely on ground water = phreatophytes intertidal zone – between high & low tides.
  • BOD amount of organic waste present in water
  • Addition of plant nutrients (excess) intensifies eutrophication
  • Oysters – Zn
  • Fisher – Fe
  • Marine animal – Sr
  • Number of mitochondria increment in germinating seeds.
  • No cell can live without protein (enzyme)
  • Neoplasm – autonomous new growth of cells (tumors)
  • Green plant cell nuclear, mitochondrial & Chloroplast genome present
  • Mesokaryotes – genetic material is surrounded by nuclear member but histones is not associated with DNA e. g. Dinoflagellates.
  • as cell in size, metabolic activities increment, but surface: volume ratio decrement
  • protoplasm – polyphasic, Colloidal, Coagulate above 60 degree Celsius, alkaline, Sp. Gravity > 1, irritability, show Brownian & Tyndall effect.
  • Danilli & Davison model – PLP Membrane
  • Singer son & Nichol son model = Fluid mosaic model - protein icebergs in sea of lipids
  • Singer son Carbohydrate bond to membrane = glycocalyx (most complex of glycolipids are gangliosides – one or more Salic acid residue = n – acetyl neuramiric acid NANA & has a negative charge)
  • Glycophorin in member of RBC.
  • Glycoproteins act as antigens.
  • Fluidity increment with decrement length of fatty acid tail.
  • Beetroot do not loose color, as Plasma Membrane is impermeable to movement of molecules.
  • Permease are not engineering as they do not alter chemical nature but move substrate from one Comportment to the another
  • Proteins transport ions.
  • Protein free lipid member is impermeable to icons but freely permeable to water
  • Large molecule like cholesterol – ingested by endocytosis & removed by exocytosis
  • Plant, Bacteria & fungi proton pump creates a negative member potential by transporting H + from cytoplasm to fluid (interior is negative charged relative to exterior)
  • Microfilament – actin – movement of plasma member, microvilli, contraction of muscle fibre
  • Microtubules – tubulin – cilia, flagella, spindle formation
  • Repeated nuclear division (without cytoplasmic division (i) Walled- Coenocyte – Rhizopus, vaucheria.

(ii) Non walled – plasmodium- Slime molds

  • Both nuclear membrane pinched to form vesicles.
  • Histone
  • Occupy major groove of DNA at 30 degree to helix
  • Rich in lysine & arginine
  • Stabilize chromosome & neutralize anionic charges.