Competitive Exams: Revision Terminology Part 23

  • Photosynthesis 264 gm CO2 + 216 gm H2O + 192 gm O2

  • Photolysis = Ce- & Mn++

  • H+ acceptor in hills rectangle (Hillis oxidant) = Hill’s oxidant, Ferricyanide, Ferric oxalate, Quinone, 2, 6 dichloride indophenoe

  • Low redox potential – lose e- - e- donor e- move from low -> high

  • High redox potential – gain e- - e- acceptor e- move from low -> high

  • Chl respiration for light absorption in photosynthesis

  • NADPH + H+ produced in light rectangle Constitute assimilatory power.

  • Photosynthesis efficiency increment in intermittent light

  • Chl is Oxidized & e- acceptor is reduced

  • PS I – P700, stromal & Grana, chl a, b carotenoids

  • PS II – P680, grana, chl a, b, c, d, carotenoids (chl b is more abundant)

  • Cyclic photophosphorylation use light energy to build ATP

  • Photorespiration – O2 is competitive inhibitor of CO2 fixation, C2 plants, energy consuming light dependent uptake of Co2 & output of CO2

  • C4 plants – chloroplast is dimorphic, Kranz anatomy by Dowton & Treguna, inner ring called as starch rich chloroplast

  • Lack grana called bundle sheath cells

  • CO2 cone is very high & RUBICO participates

  • On lowering temperature – C4 Photosynth xeric habitat

  • Wasbury effect – inhibitory effect of high concentration of O2 on photosynthesis in C3 plants, due to competition between CO2 & O2 for public C4 are insensitive to such change.

  • CAM pathway – CO2 us fixed at night & make glucose during day, in cactus etc., Calvin cycle CAM separated in time stored as u – c malic acid.

  • Law of limiting factor – when biological process is condition as to its rapidity by number separate factors, rate of process limited by the slowest factor.

  • C13C12 in terrestrial plants called C13 discrimination (C4 has from C23 then C3 plants sugar from sugar cane (C4) is sweeter than sugar beet (C3) plants)

  • Photosynthesis = anabolic, endergonic, Oxidative – reductive

  • Destruction of chlorophyll due to high light intensity = Solarization most common limiting factor of photosynthesis = CO2.

  • Compensation point – photosynthesis = respiration

  • D eMU (di-chloro phenyl dimethyl urea) – O2 release

  • C3 plant – more CO2 is released in light than dark phase & increment with increment of CO2

  • Chlorophyll unit in leaves of difference ages plants = assimilatory power it decrement with age of plant.

  • 12+ help in translocation of food = active process

  • Presence of labelled sugar in phloem showed that solutes are transport through phloem.

  • If tree ringed, roots die 1st, ringing not successful in monocot open Vascular bundle

  • Ringing done below fruits – fruits will be bigger in size.

  • Ringing done between fruits & leaves – fruits will be smaller in size

  • CO2 concentration is more before sunrise (start of photosynthesis ) So CO2 + H2CO3 lower pH

  • Photo excitation Occurs in chl. molecules

  • Protochl converts to Chl ( in presence of C7 & C8 of same pyrrole ring (IV) and +24 atoms)

  • Jenner – against smallpox

  • Pasteur – against rabies.

  • Infective nature of TMV – merger

  • Contagium vivum fluidum – Beijerinck.

  • More diversity found in genome of virus.

  • M. Schlesinger isolated virus bacteriophage WLL made of protein H3PO4

  • Vision – Fully assembled mature particle of virus capable of infection.

  • Smallest virus = coli phage F2

  • Smallest plant virus = Tobacco necrosis virus.

  • Longest plant virus = Citrus Trist age virus.

  • Smallest animal virus = foot & month disease of cattle.

  • Largest animal virus = pore – parrot fever virus.

  • Arboviruses = Arthropod borne virus Reovirus – Respiration enteric orphan virus.

  • Capsomere are proteinaceous (Each present in protomere)

  • Capsomere highly synthesis structure which can be crystallized

  • Total capsomere = 10 (n – 1)2 + 2 n = number of capsomere on one edge Example-Adenovirus (6 = n) so total = 252