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Home / Biological Apparatus & Material

EMBRYOLOGY

(I) Frog embryology – set of 10 slides.

(ii) Chick embryology – 13, 18, 21, 24, 30, 33, 36, 48, 56, 66, 72, 96, 120 hrs. W.M./T.S.

Category: Biological Apparatus & Material
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  • NSG- 9 SALT BRIDGE WITH SINTERED DISC A salt bridge is a device used in an electrochemical cell for connecting its oxidation and reduction half cells wherein a weak electrolyte is used. In other words, a salt bridge is a junction that connects the anodic and cathodic compartments in a cell or electrolytic solution. Glass tube salt bridges commonly consist of U-shaped  tubes filled with a relatively inert electrolyte. A salt bridge is an important part of an electrochemical cell. A salt bridge is a glass tube  that connects the two sides of a an electrochemical cell and provides electrolytes needed to neutralize the solutions in both sides of the cell. Purpose of Salt Bridge The function of a salt bridge in electrochemical cell is to keep electrical neutrality in the solutions by providing an electrical contact between both sides of the galvanic cell without any mixing of the solutions. Without a salt bridge, negative charge will collect into just one side of the electrochemical cell and the other side will be positively charged as ions are created and become part of each sides solution. If both sides of the cell become polarized in charge then the electrical current will not be produced. The purpose of salt bridge is to continue the reaction that produces the electrical current, without it charge would polarize and electrical current would cease. Essentially the purpose of a salt bridge would be maintain neutrality of charge between the two sides of an electrochemical cell so that electric current can continue to be produced. Construction : Apparatus consist of Inverted Glass U tube,With over all  height 100 mm ends closed with Sintered Disc . Width 80 mm.Diameter of arms.13 mm Material : Chemical resistant clear Borosilicate 3.3 glass and Sintered Disc SALT BRIDGE WITH SINTERD DISC
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ROOT MORPHOLOGY SPECIMENS

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LIFE HISTORY OF PLANTS

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LEAF MORPHOLOGY SPECIMENS

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GYMNOSPERM

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XEROPHYTIC AND PARASITIC PLANTS

(A) ALGAE AND FUNGI Chara fertile, Dictyota, Fucus, Laminaria, Sargassum with bladder, Ulva, Collection of Algae - set of 4, Collection of Marine Algae - set of 4, Collection of Thallophyta - set of 4, Agaricus big size, Morchella, Polyporus or Peziza, Ustilago on wheat or barley, Puccinia on wheat and barberry leaf, Lichen collection - set of 4.
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BOTANICAL MOUNTS

Natural specimens, positioned and dry mounted in glass top wooden display containers of size 230 x 305 mm. (a) Classification of Plant Kingdom Various specimens to cover all plant groups. (b) Dispersal of seeds and fruits By wind (size 350 x 450 mm). (c) Dispersal of seeds and fruits By animal. (d) Dispersal of seeds and fruits By water. (e) Types of roots - Various types. (f) Modification of roots - Various types. (g) Types of stems - Various types. (h) Modification of stems - Various types. (I) Leaf shapes simple type - Various types. (j) compound leaves - Various types. (k) Leaf - Venation, Margin. (l) Leaf Modification - Various types. (m) Stipule types (n) INflorescence - Racemose Type (o) INflorescence - Cymose type. (p) Types of capsular fruit - Various specimens. (q) Pollination (R) Types of fruits and seeds Achenial and Schizocarpic. (s) Tendril Climber Different Types. (t) Collection of XerophytesDifferent Types. (u) Classification of fruits Various Types.
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BOTONICAL MOUNTS

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BRYOPHYTA MOSSES

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