SYLLABUS GNTST and PNST – BOTANY

Structure organisation of cell, cell theory . Light and electron microscopic view of cells. structure

and functions of cell organalles : nucleous mitochondria , Chloroplast, Endoplasmic reticulum,

Golgi complex lysosome, micro bodies, microfilaments ribonsomes. Centrioles and plasmids,

Eukaryotic chromosome (morphology) cell and plasma membrane. Difference between cell and

animal division, cell cycle significance of mitosis and meiosis.

Mendel’s law of inheritance, monohyobrid and dihybrid cross; linage and crossing over of genetic

material DNA relication, genetic code transcription, translation and gene regultion.

Difference between prokaryote and eukaryotes: structure reproduction and economic importance

of viruses Mycoplasma, Bacteriophage, cynobacteria (Nostoc) and bacteria.

Five kingdom classification binomial nomenclature: external morophology and life cycle of

spirogyra

mucor, funaria selaginella and pinus .

Elementary knowledge of microsporogenesis, megasporongenesis. Fertilization endosperm and

embroyo development in angiosperms.Tissue and tissue systems, meristematic and permanent

tissue, mineral nutrition essential elements and their functions: uptake of minerals transport of

water and solutes.

Transpiration photosynthesis and respiration: importance, mechanism and factors affecting these

processess: photorespiration. Enzymes and growth hormones with reference to their classification,

chemical nature, mode of action importance. Elementary idea of photoperiodism and phytochrome.

Ecosystem – structure and function, major ecosystems i.e lake and forest; food chain., food web

and energy flow, ecological crises role of man in polluting environment – air water and soil.

Role of plants in human welfare: a general knowledge of plant products of economic value drugs,

fibers, cereals.

Wheat and rice, pulses (gram), oil seeds(ground nut), sugarcane, coal and petroleum, Food

preservation methods and importance.

Principle of plant breeding and its role in improvement of crops, biotechnology, scope and

importance in agriculture and industriesmanufacture of cheese. Yoghurt alcohol antibiotics

Questions