Kerala SSLC Biology study guide
Kerala SSLC Biology · Work through your exam, one topic at a time.
The Kerala SSLC Biology component is the biology portion of the Secondary School Leaving Certificate examination taken at the end of Class 10 in Kerala. It is intended for students completing the state syllabus who need the SSLC qualification for higher secondary admission, vocational courses, or other further study. The Kerala SSLC Biology study guide has 11 sections and about 3,659 words.
01Cell Biology and Cell Division
Kerala SSLC questions here check cell theory, the structure–function link of each organelle, prokaryotic versus eukaryotic organisation, osmosis and plasmolysis, and the exact sequence and outcome of mitosis and meiosis. Expect one-line definitions, reasoning about labelled structures, and chromosome-number arithmetic.
346 words, about 2 min02Genetics and Heredity
Questions cover Mendelian ratios, genotype versus phenotype, test crosses, deviations such as incomplete dominance and codominance, human sex determination, sex-linked inheritance, mutation, and the DNA-to-protein pathway. Law of dominance, law of segregation (alleles separate during gamete formation) and law of independent assortment (two pairs of factors behave independently).
353 words, about 2 min03Physiology of Plants and Animals
This domain examines how plants gain carbon, move water and food, take up minerals, and respond to stimuli - plus the general principle of homeostasis that applies to animals. Photosynthesis: 6CO2 + 12H2O → C6H12O6 + 6O2 + 6H2O, in chloroplasts.
358 words, about 2 min04Nutrition and Digestion
Expect questions on modes of plant nutrition, the human alimentary canal, enzyme–substrate–site matching, the role of bile, absorption in villi, and diet-deficiency conditions. Plant modes: autotrophic, saprophytic (Rhizopus, mushroom), parasitic (Cuscuta), insectivorous (Nepenthes, Drosera), symbiotic (Rhizobium in root nodules, mycorrhiza, lichen).
317 words, about 2 min05Respiration and Gas Exchange
Questions check the stages and sites of aerobic and anaerobic respiration, ATP accounting, the human respiratory tract, the mechanism of breathing, and how O2 and CO2 are carried in blood. Breathing is ventilation; respiration is the controlled release of energy from glucose as ATP.
340 words, about 2 min06Transport and Circulation
This domain covers water and food transport in plants and the human circulatory system: blood composition, heart chambers, double circulation, cardiac cycle, blood pressure and lymph. Xylem carries water and minerals upward, driven by transpiration pull, cohesion-tension and root pressure; it is dead tissue at maturity.
314 words, about 2 min07Excretion and Osmoregulation
Expect nephron structure and function, the steps of urine formation, hormonal control of water balance, accessory excretory organs, dialysis, and plant excretory routes. Excretion removes nitrogenous wastes and regulates water and salt balance (osmoregulation).
327 words, about 2 min08Coordination and Response (Nervous and Endocrine Systems)
Questions compare nervous and endocrine control, test reflex-arc ordering, brain regions, and matching hormones to glands, target organs and disorders. Neuron: dendrites receive, cell body integrates, axon conducts; the myelinated sheath speeds conduction; the synapse releases a neurotransmitter (acetylcholine) across the gap.
319 words, about 2 min09Reproduction and Development
Questions cover asexual and vegetative methods with Kerala examples, flower structure, pollination and double fertilisation, human gametogenesis, the menstrual cycle, fertilisation, placenta and gestation. Asexual: binary fission (Amoeba), budding (yeast, Hydra), fragmentation, spore formation (Rhizopus), and vegetative propagation - tapioca from stem cuttings, banana from suckers, ginger and turmeric from rhizomes, sweet potato from root tubers.
322 words, about 2 min10Ecology
This section checks levels of ecological organisation, ecosystem components, food chains and webs, energy flow and the ten-percent law, nutrient cycles, ecological pyramids and species interactions. Levels: organism → population → community → ecosystem → biome → biosphere.
306 words, about 2 min11Environment and Biodiversity
Questions target the levels of biodiversity, hotspots and endemism, Kerala's protected areas, in-situ versus ex-situ conservation, pollution phenomena such as biomagnification and eutrophication, and global environmental conventions. Biodiversity has three levels: genetic, species and ecosystem diversity.
357 words, about 2 min