B.sc 3rd Year Botany Syllabus 2023-2024 Session

In this post b.sc 3rd year botany syllabus is given for 2023-2024. 

The syllabus covers all those topics which are in the syllabus of any university. 

This is a common syllabus, which will act as a guide. 

This will guide those students who have just entered the third year and their university has not provided the updated syllabus. 

By covering the topics given in the BSc 3rd year botany syllabus, you can make notes for yourself in advance and make good use of your time. 

You can also download this syllabus in PDF. 

Students who have not yet received the syllabus and want to make good use of their time can continue their studies using this syllabus as their basis. 

If your university has released the BSC final year syllabus and there is a difference in this syllabus from its topic, then of course you should follow the syllabus of your university. 

The syllabi of all universities may be different, but some topics are common in all of them. 

Therefore, there should be no problem in following this syllabus. 

For better information about all these topics of the BSc Botany honors syllabus, you can also get help from an advanced book on this subject. 

This will increase your confidence level and also your knowledge level. 

The syllabus given in this post covers the topics of Paper 1, Paper 2, and Paper 3 of Botany Third Year. 

These have to be studied in B.Sc Botany subject.

BSc Botany Syllabus 2023-2024

Bsc 3rd Year Botany 1st Paper Syllabus


  • Unit-1: -Plant Ecology: Definition, scope, branches, and Ecological factors affecting the vegetation. Ecosystem: Structure, its biotic and abiotic components, food chain and food web, ecological pyramids, energy flow, biogeochemical cycles.
  • Unit-2: - Productivity: Primary and secondary productivity and their measurements Plant succession: causes. Process types: Hydrosere, Xerosere (Lithosere and Psammosere). Community: Structure and development
  • Unit-3: - Pollution of air, water, Noise, their causes, consequences, and control. Resources: Renewable and non-renewable, management problem of depletion of natural vegetation; endangered plants. Red data book. National parks and sanctuaries.
  • Unit-4: - Plant adaptations: Hydrophytes, Xerophytes, and Halophytes (morphological, anatomical, and physiological adaptations). Ecology of Rajasthan desert.
  • Unit-5: - Biodiversity Phytogeography Introduction, continuous and discontinuous distribution, Phytogeography of India, Vegetational regions of India,. Plant indicators.

Bsc 3rd Year Botany 2nd Paper Syllabus


  • Unit-1:- Osmosis, plasmolysis, deplasmolysis Adsorption. Absorption of water. Ascent of sap. Concept of water potential. Transpiration (mechanism of opening &closing of stomata ) factors affecting transpiration and its importance Role of macro and microelements.
  • Unit-2:- Photosynthesis: Photosynthetic pigments (Chlorophylls, carotenoids and phycobilins)- structure and function. Light reactions mechanism of carbon fixation in C3 and C4 plants. Brief description of C.A.M. plants. compensation point. Factors affecting photosynthesis.
  • Unit-3:- Respiration: Glycolysis, Krebs cycle, electron transport system and oxidative phosphorylation, Photo-respiration factors affecting respiration. Fats: synthesis and degradation.
  • Unit-4:- Plant growth regulators: Auxins, gibberellins, cytokinins, ethylene, and abscisic acid, their discovery, structure, physiological effects, and applications. Seed dormancy, senescence, photoperiodism, and vernalization.
  • Unit-5:- Enzymes General Characteristics, classification, mode of action, inhibitors. Principles and use of the following instruments, and techniques: pH measurement, centrifugation, colorimetry, chromatography (PC, TLC).

Bsc 3rd Year Botany 3rd Paper Syllabus


  • Unit-1:- Gene concept from Mendel to the molecular level, Genetic code, DNA types: DNA replication and transcription in prokaryotic system. Nif gene and nitrogen fixation.
  • Unit-2:- Plasmids, kinds and their uses as vectors, the principle of genetic engineering and recombinant DNA technology. Tools of genetic engineering (PCR, gene sequencing, restriction enzymes, genomic library).
  • Unit-3:- Interaction and expression of transgenes, Bt-toxin, Methods of gene transfer in higher plants, vector-mediated gene transfer. A brief account of vectorless gene transfer (Particle gun, liposomes, chemical methods).
  • Unit-4:- History and scope of plant tissue culture. Basic techniques and tools of plant tissue culture. A brief amount of protoplast culture and fusion. Plant tissue culture in agriculture and forestry. Micropropagation and somatic embryogenesis.
  • Unit-5:- Plant tissue culture in the industry, secondary plant products: definition types and uses of alkaloids, factors affecting the production of secondary products in cultures grown in bioreactors (fermentors).

Botany Syllabus PDF

Here B.Sc Botany Syllabus is being given in PDF form. 

This is very important for those students who rarely have access to the internet or study while living in remote areas. 

They can download the syllabus of this subject use it offline and continue their studies.

B.sc 3rd Year Botany Syllabus PDF Download

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