Kerala Plus Two Biology (DHSE) study guide
Kerala Plus Two Biology (DHSE) · Work through your exam, one topic at a time.
The Kerala Higher Secondary Biology course, examined by the Directorate of Higher Secondary Education (DHSE) at the end of Plus Two, is the state-board science subject that opens doors to medical, agricultural, veterinary, paramedical and pure-science degrees. It is written for Higher Secondary students in Kerala's government, aided and unaided schools, and it is also taken privately by repeaters and candidates migrating from other boards. The Kerala Plus Two Biology (DHSE) study guide has 9 sections and about 3,309 words.
01Reproduction: Flowering Plants, Human Reproduction and Reproductive Health
Reproduction in the DHSE syllabus combines flowering-plant embryology, human reproductive physiology and reproductive health. The exam rewards exact counts (meiotic divisions, nuclei in the embryo sac), correct hormone sequences, and precise terminology rather than descriptive padding.
388 words, about 2 min02Genetics and Evolution: Inheritance, Molecular Basis and Evolutionary Mechanisms
This domain tests Mendelian and non-Mendelian inheritance, the molecular machinery of replication, transcription and translation, and the population-level reasoning behind evolution. Kerala papers frequently combine a ratio calculation with a conceptual explanation.
364 words, about 2 min03Biology and Human Welfare: Health, Disease and Microbes in Human Welfare
This domain links pathogen biology and immunity with the industrial and agricultural uses of microbes. Questions typically ask you to match a microbe to a product, identify a lymphoid organ, or explain BOD and biocontrol logically.
360 words, about 2 min04Biotechnology: Principles, Processes and Applications
Biotechnology questions test the toolbox (enzymes, vectors, PCR, electrophoresis) and its products (Bt crops, RNAi, insulin, gene therapy). Marks are usually lost on enzyme names, temperatures and the exact step at which a recombinant is selected.
365 words, about 2 min05Ecology: Organisms, Populations, Ecosystems and Biodiversity
Ecology in the DHSE paper rewards quantitative handling of population growth and energy flow, plus correct classification of interactions and conservation categories. Answers should name the principle, then apply it to the given data.
385 words, about 2 min06Cell Structure and Function: Cell Cycle, Cell Division and Biomolecules
This domain covers the timing and events of the cell cycle, the differences between mitosis and meiosis, and the structure and behaviour of biomolecules, especially enzymes. Numerical questions on chromosome and DNA content are common.
359 words, about 2 min07Plant Physiology: Transport, Nutrition, Photosynthesis, Respiration and Growth
Plant physiology questions test mechanisms (water potential, pressure flow, Z-scheme, electron transport) and quantitative facts (ATP and NADPH per glucose, respiratory quotient). Precise pathway names and locations carry the marks.
409 words, about 2 min08Structural Organisation in Animals and Plants: Tissues, Anatomy and Organ Systems
This domain tests tissue identification from descriptions, the anatomy of dicot and monocot organs, secondary growth, and the functional anatomy of the earthworm, cockroach and frog. Answers should name the tissue and justify the identification.
319 words, about 2 min09Diversity of Living Organisms: Classification, Plant Kingdom and Animal Kingdom
Diversity questions ask you to place an organism in the correct group from a list of diagnostic features, or to name the pigment, structure or symmetry that distinguishes one group from another. Learn the one or two unique features per taxon rather than long descriptions.
360 words, about 2 min