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BCS written syllabus
General and technical cadres · 235 pages
Compulsory subjects and post-related subjects for professional and technical cadres. Confirm the applicable subject code in the recruitment notice.
Published by BPSC. Collected 2026-11-14. Confirm the edition and subject against your recruitment notice before studying.
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SYLLABUS FOR BCS (WRITTEN) EXAMINATION
122/235
BOTANY
Part-II
Marks: 100
Functions and Applications.
(Plant Physiology and Biochemistry, Cytology and Cytogenetics , Genetics and Molecular Genetics, Tissue
Culture, Horticulture, Ethnobotany, Ecology.)
Plant Physiology and Biochemistry:
1. Photosynthesis: Details of C3 and C4 pathways.
2. Comparison between C3, C4 and CAM pathways.
3. Respiration: (i) Aerobic respiration, Glycolysis, (ii) Anaerobic respiration, fermentation with special
reference to alcohol fermentation.
4. Physiological and biological nitrogen fixation.
5. Mechanism of salt absorption.
6. Dormancy, Phtotoperiodism and Vernalization.
7. Biosynthesis of some important carbohydrates (a) Sucrose, (b) Starch and (c) Cellulose.
8. Alkaloids: (a) Classification with examples and distribution and (b) importance of alkaloids.
9. Fats: (a) Chemical constitution of fatty acid and (b) Biosynthesis of fatty acid.
Cytology and Cytogenetics:
1. Chromosome: Physical structures.
2. Karyotype and genome analysis.
3. Chromosomal aberrations.
Genetics and Molecular Genetics:
1. Mendel‘s Laws of inheritance.
2. Sex determination.
3. Physical structure and chemical composition of DNA and RNA.
4. Plasmid: Structure, function and importance.
5. Recombinant DNA (rDNA): Method of construction and importance.
6. Genetic engineering for crop improvement.
Tissue Culture:
1. Cell suspension culture.
2. Somatic embryogenesis.
3. Haploid production.
4. Clonal propagation and its commercial application.
Horticulture:
1. Classification of fertilizer, composition, doses, application and procedures.
2. Application of growth regulating chemicals in horticulture.
Ethonobotany:
1. Ethno-botanical research in Bangladesh
2.Medicinal plants of Bangladesh, their conservation and sustainable use.
Ecology:
1. Methods of studying vegetation.
2. Ecosystem: (i) Structure and components of ecosystem, (ii) Pond ecosystem.
3. Pollution: Kinds of pollution, harmful effects, effects of dams and embankment on vegetation.
4. Methods of measurement of primary production, Factors limiting primary productivity in aquatic and
terrestrial communities.
5. Environmental hazards: Green house effect, ozone depletion, desertification, aridity and drought.
Salinity flood and water logging in the light of Bangladesh condition.
6. Different forest types and forest area of Bangladesh, causes of depletion of forests of Bangladesh and
the ways and means to prevent it.