ICSE/ISC Board Exam: Revision Terminology Part 10

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Artificial Classification

  1. Theophrastus – herb, Shrub & trees
  2. John Ray – herb into two that is Perfectae (flowering) and Imperfectae (non – flowering) , John Ray 1st to divide in monocot & dicot.
  3. Camerarius – proved pollen necessary for seed formation.
  4. Carolus Linnaeus (Swedish) – based on number of stamens & their arrangement in flower

Natural System

  1. AL de jussien – genera planetarium – cotyledons, petals & stamens
  2. Robert Brown – Gymnosperm – naked ovule & seeds
  3. De Candolle – Vasculares (Vascular with cotyledon) , cellulare (Vascular bundle absent)
  4. Bentham & hooker – gymnosperm in between monocot & dicot

Betham Hooker Classification ~Understanding plant classification by Bentham & Hooker

Understanding Plant Classification by Bentham & Hooker
Understanding the Phylogentic System
  • Floral chromosome = Basis of classification – floral features are conservative then vegetative ⇾ venation is relied on classification for angiosperm
  • World՚s largest herbarium – Royal Botanical Garden, Kew, England.
  • India՚s largest herbarium – Calcutta (13-lakh specimen) .
  • Solidago (Compositae) for dropsy
  • Labiatae = Mint family, Verticellaster inflorescence – sweet aromatic small
  • Photo autotrophic nutrition = Holophytic nutrition
  • Neottia – Bird nest orchid – humus rich soil – ectotrophic mycorrhiza
  • Monotropa – Indian pipe – humus rich soil – endotrophic mycorrhiza – pine forests
  • Dischidia = Pitcher plant but not insectivores.
  • Intervenial chlorosis – in young leaves – Fe
  • Intervenial chlorosis – in old leaver – mg
  • N2 defeciency – 1st chlorotic in older leaver.
  • Gold present in stem of Equisetum.
  • Prokaroyotes – utilize elemental N2 gas
  • Photolysis of H2O = Mn.
  • Al present in ferus & Lycopedium Siltica – grass & diatoms
  • Zn – little leaf disease of cereals, Exanthema of fruits, Mottle leaf of citrus, white leaf of maize, sickle leaf of cocoas.
  • S – tea yellows
  • Mo – Whiptail of Brassica, Scald of Beans, water core in turnip.
  • Mn – Speckled yellow of beet, Marsh spot of peas, grey speck of oats.
  • B – Heart rot of sugar beet, corky coke of apple, top sickness of tobacco, Celery stem crack, Brown heart or water core in turnip, Brown heart of cauliflower.
  • Cu – Die back of shoots
  • Cl – wilting of leaf tip followed by chlorosis, bronzing & necrosis basipetally in areas of proximate to wilting
    Understanding the Role of Nitrogen Fixing Bacteria՚S
  • Leg Hb – produced during maturation of reservoir of O2 & production of ATP, nodules keeps away O2 from nitrogenase
  • Membrane permeability – N2 & Ca
  • Nitrate reductase – Mo/flavorprotein
  • Nitrite reductase – Ferrodoxin.
  • Apoplast – nonliving, cellulosic cell wall, intercellular space (epidermis to xylem) – diffusion
  • Symplast – living, cytoplasm & plasmodesmate, active transport.
  • Hydrophonics – placing the roots in nutrient solation.
  • Aerophonics – growing plant in moist air laden with nutrients (Cytozyme – H2O soluble)
  • Liebig law of minimum – yield is determined by element present in minimum quantity in proportion to Lundergardh՚s Cytochrome pump hypothesis – absorption of anion only immobile elements – Ca, S, Fe – Deficiency symptoms in young leaves. states that growth is controlled not by the total amount of resources available, but by the scarcest resource
  • Co – Algae, Microbes.
  • Na – Halophytes, Cu Pathway.
  • I2 – Marine algae.
  • Mo – needed in least quantity.
  • Plant ash – Contains oxides & Carbonates of elements
  • Most active free ion = K +
  • Sink is a region in which plant utilize a substances Translocate.
  • Bidirectional Translocation of minerals = Xylem.
  • Fall of immature leaf – deficiency of zinc.

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