Competitive Exams: Revision Terminology Part 15

  • Biocoenosis – karl Mobius.

  • Microcosm – SA Forbes.

  • Geobiocoenosis - Sumaches.

  • Holocoen – friederichs.

  • Plant depend completely on ground water = phreatophytes intertidal zone – between high & low tides.

  • BOD α 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

  1. Occupy major groove of DNA at 30 degree to helix

  2. Rich in lysine & arginine

  3. Stabilize chromosome & neutralize anionic charges.