Gauhati University Question Papers for Botany 3rd Semester
Gauhati University Question Papers for Botany 3rd Semester
Question Paper from 2010 available
More than 50 question papers every semester
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Paper 101
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Paper 102
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2010
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This is the downloading page for Botany 3rd semester but if
you want to explore the world of Botany than go to the main
page for Botany major. Find the all the help form the world of
education so please comment.
Link is below down here
Main
page- link
Course Content
Paper: M 301 (Theory)
(Ecology, Plant Geography, Evolution)
Ecology:
UNIT I: Introduction, Ecosystem structure (abiotic and biotic components), Plant adaptations in response to water, temperature and light.
UNIT II: Population ecology: Population characteristics; Ecotypes; Ecads. Community ecology: Community characteristics; Frequency; Density; Cover; IVI; Life forms, Biological spectrum and its significance.
UNIT III: Ecosystem ecology: food chain, food web, ecological pyramids; Ecosystem function (Energy flow, Biochemical cycles), Ecosystem services, Ecosystem resilience; Ecological succession: Types and pattern.
UNIT IV: Environmental pollution: Water pollution: Sources and kinds, impact of pollution on aquatic ecosystem, eutrophication of water bodies; Air pollution: sources and kinds, impact on plants, acid rain; Soil pollution: Sources and kinds, impact on plants and ecosystems.
Plant Geography:
UNIT V: Phytogeographical regions of India; Factors regulating distribution of plants, endemism, isolation and speciation; Vegetation of India with special reference to North Eastern Regions; Major biomes of the world.
Evolution:
UNIT VI: Evidences, theories and mechanism of evolution; Origin of new species. Gene pool; Genetic drift; Changes in gene frequencies in population
Course Content
Paper: M 302 (Theory)
(Instrumentation and Laboratory Techniques)
Instrumentation:
UNIT I: Microscopy: Working principles of Electron, Phase contrast and fluorescence microscopy; Image documentation: Camera lucida- principle, types; microphotography, digital imaging-advantages of digital camera and digitization.
UNIT II: Types and techniques of micro technique, Principles and applications of hot air oven, incubators, autoclave, laminar air flow chamber, centrifuge, lux meter, pH meter
UNIT III: Chromatography: Introduction, definition, concept of partition coefficient, Paper chromatography- principle, method, advantages; TLC and column chromatography: principle, method, advantages and disadvantages; Spectroscopy: principle, Beer and Lambert’s law, mechanics of measurement; Spectrophotometer- working principle and applications.
Laboratory Techniques:
UNIT IV: Fixatives and stains: principles, types, procedures and applications; Methods of sterilization and culture media; Mounting media
UNIT V: Field and herbarium techniques, preservation of museum and herbarium specimens, preservation techniques for special types of plants (submerged aquatic plants, succulent and xerophytes, palm, canes and bamboos)
UNIT VI: Preparation of normal, molal, molar, ppm and percent solutions; Somogyi’s reagent, Biuret reagent, Nessler’s reagent, different indicators
I want 3rd semester previous Q.paper
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