Topics, explained the way a good teacher would
Short lessons with simple explanations, tables, flowcharts, a labelled diagram, real-life examples and a quick check. New topics are added as students learn them.
Learn a new topic- BiologyClass 9-10 · CBSEHeredity: Mendel’s Laws, Punnett Squares and Sex DeterminationMaster heredity: inherited vs acquired traits, Mendel’s monohybrid cross (3:1 phenotype, 1:2:1 genotype), dihybrid cross (9:3:3:1 ratio), Law of Segregation and Independent Assortment, and the XX/XY chromosomal mechanism of sex determination in humans.
- BiologyClass 9-10 · CBSEControl and Coordination: Neurons, Reflex Arc and PhytohormonesExplore the nervous system: anatomy of a neuron, synaptic transmission, the reflex arc pathway, divisions of the human brain (cerebrum, cerebellum, medulla), plant movements (tropic vs nastic), and phytohormones.
- BiologyClass 9-10 · CBSECirculation and Excretion: Heart, Blood and NephronsExplore the 4-chambered human heart, double circulation (pulmonary & systemic circuits), artery vs vein vs capillary, blood components, xylem vs phloem in plants, and human nephron ultrafiltration & urine formation.
- BiologyClass 9-10 · CBSERespiration: Aerobic, Anaerobic and Gas Exchange in LungsLearn cellular respiration pathways: breakdown of glucose (glycolysis, aerobic respiration in mitochondria vs anaerobic in yeast and muscle cells), ATP energy currency, human respiratory anatomy, and gas exchange in alveoli.
- BiologyClass 9-10 · CBSELife Processes: Nutrition, Photosynthesis and DigestionMaster autotrophic nutrition (photosynthesis light/dark events, stomata mechanism), heterotrophic modes (holozoic, saprophytic, parasitic), and the step-by-step human digestive system with enzymes and absorption.
- BiologyClass 9-10 · CBSEThe Fundamental Unit of Life: Cell Structure and OrganellesExplore the fundamental unit of life: prokaryotic vs eukaryotic cells, plant vs animal cells, plasma membrane & osmosis, nucleus, mitochondria (powerhouse), endoplasmic reticulum, Golgi apparatus, lysosomes (suicide bags), and vacuoles.
- BiologyClass 9-10 · CBSEPlant Tissue SystemsPlants are complex organisms made of different types of cells organized into tissues, which then form tissue systems. These systems work together to perform a
- BiologyClass 12 / NEET & CBSEEvolution: Natural Selection, Hardy-Weinberg & Adaptive RadiationMaster evolutionary biology: Homologous vs Analogous organs (Divergent vs Convergent evolution), Industrial melanism in peppered moths, Darwin's finches (Adaptive Radiation), Hardy-Weinberg equilibrium equation ($p^2 + 2pq + q^2 = 1$), and human evolution stages.
- BiologyClass 11 / NEET & CBSELocomotion & Movement: Sliding Filament Theory of Muscle ContractionMaster muscular and skeletal physiology: Sarcomere microanatomy (A-band, I-band, H-zone, Z-disc), Actin (Troponin/Tropomyosin) and Myosin filaments, Neuromuscular junction, and Calcium-ATP cross-bridge cycle.
- BiologyClass 11 / NEET & CBSEExcretory Products & Elimination: Nephron & Counter-Current SystemMaster renal physiology: Ammonotelism vs Ureotelism vs Uricotelism, Nephron microanatomy, Ultrafiltration (Glomerular Filtration Rate GFR = 125 ml/min), Counter-Current Mechanism in Loop of Henle, and RAAS hormonal regulation.
- BiologyClass 11 / NEET & CBSEBody Fluids & Circulation: Cardiac Cycle, ECG & Blood GroupsMaster cardiovascular physiology: Composition of blood and lymph, ABO & Rh incompatibility (Erythroblastosis foetalis), cardiac conduction (SA node), cardiac cycle phases, heart sounds (LUB-DUB), and ECG wave analysis.
- BiologyClass 11 / NEET & CBSEBreathing & Exchange of Gases: Hemoglobin Dissociation & Bohr EffectMaster respiratory physiology: Mechanism of breathing (diaphragm & intercostal muscles), respiratory volumes (Tidal, VC, TLC), gas exchange at alveoli, Oxygen-Hemoglobin Dissociation Curve, and Bohr & Haldane effects.
- BiologyClass 11 / NEET & CBSEAnatomy of Flowering Plants: Tissues & Secondary GrowthMaster plant histology: Meristematic vs permanent tissues, Xylem & Phloem anatomy, Monocot vs Dicot stem/root cross-sections, vascular cambium, heartwood vs sapwood, and cork cambium (phellogen).
- BiologyClass 11 / NEET & CBSEMorphology of Flowering Plants: Roots, Stems & Floral FormulasMaster angiosperm morphology: Taproot vs fibrous root modifications (pneumatophores), stem modifications (rhizome, thorn, tendril), phyllotaxy, inflorescence (racemose vs cymose), and floral formulas of Solanaceae, Fabaceae, and Liliaceae.
- BiologyClass 11 / NEET & CBSEAnimal Kingdom: Non-Chordates to Chordates ClassificationMaster zoological taxonomy: Symmetry (radial vs bilateral), coelom (acoelomate, pseudocoelomate, coelomate), germ layers, and diagnostic traits from Porifera to Mammalia.
- BiologyClass 11 / NEET & CBSEPlant Kingdom: Algae, Bryophytes, Pteridophytes & GymnospermsMaster botanical evolution: Algae classes (Chlorophyceae, Phaeophyceae, Rhodophyceae), Bryophyte life cycles (mosses & liverworts), Pteridophyte vascular tissues, and Gymnosperm naked seeds.
- BiologyClass 12 / NEET & CBSEEcosystem: Energy Flow, 10% Law & Ecological PyramidsMaster ecology: Lindeman's 10% energy law, trophic pyramids (number, biomass, energy), carbon and phosphorus cycles, and ecological succession.
- BiologyClass 12 / NEET & CBSEHuman Health & Disease: Immunity, AIDS & CancerMaster immunology and oncology: Innate vs Acquired immunity, antibody structure (H2L2), HIV replication retrovirus cycle, contact inhibition loss in cancer, and metastasis.
- BiologyClass 12 / NEET & CBSEBiotechnology Applications: Bt Cotton, Gene Therapy & RNAiMaster applied biotechnology: Bt toxin crystal protein mechanism, RNA Interference (RNAi) gene silencing, recombinant insulin (Humulin) synthesis, and ADA gene therapy.
- BiologyClass 12 / NEET & CBSEBiotechnology: Recombinant DNA Technology & PCR AmplificationMaster genetic engineering: Restriction endonucleases (molecular scissors), palindromic sequences, cloning vectors (pBR322), gel electrophoresis, and Polymerase Chain Reaction (PCR).
- BiologyClass 11 / NEET & CBSEChemical Coordination: Endocrine Hormones & Feedback RegulationMaster endocrinology: Hypothalamic-pituitary axis, Thyroid (T3/T4), Adrenal medulla (epinephrine) & cortex (cortisol), Pancreas (insulin vs glucagon), and second messenger mechanisms (cAMP).
- BiologyClass 11 / NEET & CBSENeural Control: Action Potential & Synaptic TransmissionMaster neurophysiology: Resting Membrane Potential (-70 mV), Na⁺/K⁺ ATPase pump, Depolarization (Na⁺ influx), Repolarization, Saltatory conduction, and chemical synaptic transmission.
- BiologyClass 12 / NEET & CBSEHuman Reproduction: Gametogenesis & Menstrual Cycle HormonesMaster reproductive physiology: Spermatogenesis vs Oogenesis, hormonal regulation (GnRH, LH, FSH, Estrogen, Progesterone), Menstrual Cycle phases, and fertilization.
- BiologyClass 11 / NEET & CBSECell Cycle & Cell Division: Mitosis, Meiosis & Crossing OverMaster cell division: Phases of cell cycle (G1, S, G2, M), spindle assembly checkpoint, Mitosis vs Meiosis, sub-stages of Prophase-I (Leptotene to Diakinesis), and synaptonemal complex.
- BiologyClass 12 / NEET & CBSEPrinciples of Inheritance & Variation: Mendelian Genetics & LinkageMaster genetics: Monohybrid & Dihybrid crosses, Law of Segregation vs Independent Assortment, Incomplete dominance, Codominance (ABO blood groups), and Morgan's chromosomal linkage.
- BiologyClass 12 / NEET & CBSEMolecular Basis of Inheritance: DNA Replication & TranscriptionMaster molecular genetics: Semiconservative replication (Meselson-Stahl experiment), replication fork enzymes, transcription unit, Lac Operon, and genetic code.
- BiologyClass 11 / NEET & CBSEPhotosynthesis: Light Reactions & Calvin Cycle (C3 vs C4)Master plant energetics: Photolysis of water, Z-scheme of light reactions, Cyclic vs Non-cyclic photophosphorylation, Calvin cycle (C3), Hatch-Slack pathway (C4), and Kranz anatomy.