Class 12 BiologyEnvironmental IssuesUnit: Ecology and Environment – FormativeSyllabus Coverage: Pollution, solid waste, agrochemicals, radioactive waste, greenhouse effect, ozone depletion and deforestationOrganism → Population → EcosystemEasy Concept NotesEnvironmental issues arise due to human activities.Air and water pollution affect health and…
Class 12 BiologyBiotechnology: Principles and ProcessesUnit: Biotechnology and its ApplicationsSyllabus Coverage: Genetic engineering and recombinant DNA technologyDNA → RNA → ProteinEasy Concept NotesBiotechnology uses living systems for useful products.Genetic engineering modifies DNA using tools such as restriction enzymes, ligases, vectors…
Class 12 BiologyBiotechnology and its ApplicationsUnit: Biotechnology and its ApplicationsSyllabus Coverage: Insulin, vaccines, stem cells, gene therapy, GMOs, Bt crops, transgenic animals, biosafety and patentsDNA → RNA → ProteinEasy Concept NotesBiotechnology has applications in medicine, agriculture and research.Human insulin can…
Class 12 BiologyOrganisms and PopulationsUnit: Ecology and EnvironmentSyllabus Coverage: Population interactions and population attributesOrganism → Population → EcosystemEasy Concept NotesEcology studies interactions between organisms and environment.Population attributes include density, birth rate, death rate, growth and age distribution.Population interactions include mutualism,…
Class 12 BiologyEcosystemUnit: Ecology and EnvironmentSyllabus Coverage: Patterns, components, productivity, decomposition, energy flow and ecological pyramidsOrganism → Population → EcosystemEasy Concept NotesEcosystem has biotic and abiotic components.Producers convert solar energy into biomass.Productivity measures rate of biomass production.Decomposition breaks organic matter…
Class 12 BiologyBiodiversity and its ConservationUnit: Ecology and EnvironmentSyllabus Coverage: Concept, patterns, importance, loss, conservation, hotspots, endangered species, Red Data Book, protected areasOrganism → Population → EcosystemEasy Concept NotesBiodiversity includes genetic, species and ecosystem diversity.Biodiversity patterns vary with latitude and…
Class 12 BiologyMolecular Basis of InheritanceUnit: Genetics and EvolutionSyllabus Coverage: DNA/RNA, replication, transcription, code, translation, regulation, genome projects and DNA fingerprintingDNA → RNA → ProteinEasy Concept NotesDNA is the major genetic material in most organisms.DNA has double helix structure with…
Class 12 BiologyEvolutionUnit: Genetics and EvolutionSyllabus Coverage: Origin of life, evidences, Darwinism, synthetic theory, natural selection, Hardy-Weinberg and human evolutionConcept → Diagram → PracticeEasy Concept NotesEvolution explains changes in living organisms over generations.Evidences include fossils, comparative anatomy, embryology and molecular…
Class 12 BiologyHuman Health and DiseasesUnit: Biology and Human WelfareSyllabus Coverage: Pathogens, immunity, vaccines, cancer, HIV/AIDS, adolescence and substance abuseStructure + Function + RegulationEasy Concept NotesHealth is physical, mental and social well-being.Pathogens cause diseases; examples include protozoans, bacteria, viruses and…
Class 12 BiologyMicrobes in Human WelfareUnit: Biology and Human WelfareSyllabus Coverage: Microbes in food, industry, sewage, energy, biocontrol, biofertilizers and antibioticsConcept → Diagram → PracticeEasy Concept NotesMicrobes are useful in food production such as curd, cheese and fermented foods.Industrial microbes…