The Living World, Features of Living Beings, Diversity in the Living World

Biological Classification, Kingdom: Fungi, Plantae, Animalia

Biological Classification, Kingdom: Fungi, Plantae, Animalia

Biological Classification, Virus, Viroids and Lichens

Biological Classification, Kingdoms: Monera and Protista

Biological Classification, Kingdom: Fungi, Plantae, Animalia

Biological Classification, Kingdoms: Monera and Protista

Biological Classification, Virus, Viroids and Lichens

The Living World, Taxonomic Categories and Taxonomical Aids

Animal Kingdom, Platyhelminthes, Aschelminthes, Annelida

Animal Kingdom, Arthropoda, Mollusca, Echinodermata, Hemichordata

Plant Kingdom, Gymnosperms and Angiosperms

Animal Kingdom, Porifera, Coelenterata, Ctenophora

Animal Kingdom, Chordata

Animal Kingdom, Arthropoda, Mollusca, Echinodermata, Hemichordata

Animal Kingdom, Porifera, Coelenterata, Ctenophora

Animal Kingdom, Chordata

Animal Kingdom, Chordata

Animal Kingdom, Platyhelminthes, Aschelminthes, Annelida

Animal Kingdom, Platyhelminthes, Aschelminthes, Annelida

Animal Kingdom, Porifera, Coelenterata, Ctenophora

Animal Kingdom, Chordata

Animal Kingdom, Arthropoda, Mollusca, Echinodermata, Hemichordata

Plant Kingdom, Gymnosperms and Angiosperms

Animal Kingdom, Arthropoda, Mollusca, Echinodermata, Hemichordata

Morphology of Flowering Plants, Stem, Leaf, Inflorescence

Plant Kingdom, Plant Life Cycles

Morphology of Flowering Plants, Stem, Leaf, Inflorescence

Plant Kingdom, Bryophytes and Pteridophytes

Morphology of Flowering Plants, Stem, Leaf, Inflorescence

Morphology of Flowering Plants, The Root

Animal Kingdom, Basis of Classification

Plant Kingdom, Bryophytes and Pteridophytes

Morphology of Flowering Plants, The Root

Plant Kingdom, Algae

Animal Kingdom, Chordata

Sexual Reproduction in Flowering Plants, Pollination

Reproduction in Organisms, Asexual Reproduction

Reproductive Health, Population Explosion and Birth Control

Principles of Inheritance and Variation, Mutations and Genetic Disorders

Sexual Reproduction in Flowering Plants, Double Fertilisation, Post Fertilisation: Structures and Events

Sexual Reproduction in Flowering Plants, Double Fertilisation, Post Fertilisation: Structures and Events

Human Reproduction, Male and Female Reproductive System

Human Reproduction, Fertilisation, Embryonic Development and Parturition

Sexual Reproduction in Flowering Plants, Double Fertilisation, Post Fertilisation: Structures and Events

Human Reproduction, Gametogenesis and Menstrual Cycle

Principles of Inheritance and Variation, Mendel's Laws of Inheritance

Principles of Inheritance and Variation, Mendel's Laws of Inheritance

Human Reproduction, Male and Female Reproductive System

Human Reproduction, Male and Female Reproductive System

Reproductive Health, Sexually Transmitted Diseases and Infertility

Human Reproduction, Male and Female Reproductive System

Reproductive Health, Population Explosion and Birth Control

Principles of Inheritance and Variation, Mutations and Genetic Disorders

Principles of Inheritance and Variation, Mendel's Laws of Inheritance

Human Reproduction, Gametogenesis and Menstrual Cycle

Principles of Inheritance and Variation, Mendel's Laws of Inheritance

Sexual Reproduction in Flowering Plants, Pollination

Sexual Reproduction in Flowering Plants, Pollination

Reproductive Health, Population Explosion and Birth Control

Reproduction in Organisms, Sexual Reproduction

Sexual Reproduction in Flowering Plants, Prefertilisation: Structures and Events

Sexual Reproduction in Flowering Plants, Prefertilisation: Structures and Events

Sexual Reproduction in Flowering Plants, Prefertilisation: Structures and Events

Reproduction in Organisms, Sexual Reproduction

Human Reproduction, Fertilisation, Embryonic Development and Parturition

Molecular Basis of Inheritance, Transcription, Genetic Code and Types of RNA

Sexual Reproduction in Flowering Plants, Double Fertilisation, Post Fertilisation: Structures and Events

Human Reproduction, Fertilisation, Embryonic Development and Parturition

Reproductive Health, Sexually Transmitted Diseases and Infertility

Human Reproduction, Gametogenesis and Menstrual Cycle

Anatomy of Flowering Plants, Meristematic Tissues and Permanent Tissues

Anatomy of Flowering Plants, Anatomy of Dicotyledonous and Monocotyledonous Plants

Anatomy of Flowering Plants, Anatomy of Dicotyledonous and Monocotyledonous Plants

Anatomy of Flowering Plants, Anatomy of Dicotyledonous and Monocotyledonous Plants

Anatomy of Flowering Plants, The Tissue System

Anatomy of Flowering Plants, The Tissue System

Anatomy of Flowering Plants, Secondary Growth

Anatomy of Flowering Plants, Secondary Growth

Anatomy of Flowering Plants, Meristematic Tissues and Permanent Tissues

Anatomy of Flowering Plants, The Tissue System

Structural Organisation in Animals, Animal Tissues

Structural Organisation in Animals, Animal Tissues

Structural Organisation in Animals, Animal Tissues

This video explains about lipids

This video explains about nitrogen bases

This video explains about amino acids

This video explains about primary and secondary metabolites

This video explains about biomacromolecules

This video explains about cell membrane and cell wall

This video explains about introduction to prokaryotic cells

This video explains about golgi apparatus

This video explains about cell size and cell theory

This video explains about ribosomes and cytoskeleton

This video explains about endoplasmic reticulum

This video explains about lysosomes

This video explains about plastids

This video explains about vacuoles

This video explains about centrosome and centrioles

This video explains about nucleus and microbodies

This video explains about mitochondria

This video explains about cilia and flagella

This video describes the different modifications of the leaves in plants

This video describes the different modifications of the roots in plants

This video describes the different modifications of the stem in plants

This video explains about acquired immunity

This video explains about vacccination and immunisation

This video explain about evidences for bilogical evolution6

This video explains about humoral immune response

This video explains about Neo-Darwinism

This video explains about natural selection

This video explains about geological time scale of Earth

This video explains about speciation

This video explains about Hardy–Weinberg Principle

This video explains about theory of lamarckism

This video explains about DNA fingerprinting

This video explains about innate immunity

This video explains about disorders of immune system

This video explains about de Vries' mutation theory

This video talks about theory of Darwinism

This video explains about genetic code

This video explains about post-transcriptional modification of RNA

This video explains about diseases caused by bacteria

This video explains about diseases caused by helminths

This video explains about diseases caused by protozoa

This video explains about mechanism of transcription

This video explains about RNA as genetic material

This video explains about mechanism of translation

This video talks about linkage of genes

This video talks about crossing over in chromosomes

This video explains about gene regulation in prokaryotes

This video explains about gene regulation in eukaryotes

This video talks about embryo development in humans

This video talks about the assisted reproductive technologies in humans

This video talks about sex determination in different organsism

This video talks about the chromosomal theory of inheritance

This video talks about pedigree analysis and its importance

This video talks about mutations and its types

This video explains about process of DNA replication

This video explains about DNA as genetic material

This video talks about DNA packaging and its properties

This video explains about semiconservative method of replication

This video discusses why older people are at a greater risk of developing cancer.

This video explains the differences between cytokinesis in plant cells and animal cells.

This video explains the mechanism of chromosomal movement to the poles of spindle during anaphase of mitosis.

This video explains the division of mitochondria and chloroplast.

This video discusses how telophase is reverse of prophase.

This video discusses the use of Azolla-Anabaena as biofertilisers.

This video discusses the uses of microbes in curd formation.

This video discusses why cyanobacteria are not preferred as biofertilisers.

This video discusses the significance of BOD in sewage treatment.

This video discusses the significance of floes in sewage treatment.

This video states the significance of microbes in the production of bioactive molecules.

This video explains the reasons of absence of DNA bands on agarose gel eletrophoresis.

This video explains the significance of different steps of PCR.

This video discusses the advantages of continuous culture systems.

This video discusses the significance of selectable markers in cloning experiments.

This video discusses the use of inactive form of proteins to microorganisms.

This video explains the characteristics of Agrobacterium tumefaciens which makes it an ideal cloning vector.

This video explains the effect of Bt toxin on the insects and the bacterium producing the toxin.

This video describes the role of Pseudomonas bacterium in pollution control.

This video discusses the significance of RNA interference in infestation of tobacco plants.

This video explains the concept of gemmae formation.

This video explains the concept of sporulation.

This video explains the need for competent cells in biotechnology and the methods by which cells can be made competent.

This video explains the technique of mutation breeding in developing crop varieties.

This video explains the significance of technique of emasculation.

This video explains the use of polyethylene glycol in somatic hybridisation.

This video discusses about suspension cultures.

This video explains why abscisic acid is called stress hormone.

This video explains the need to overcome apical dominance to promote the growth of lateral buds.

This video explains the effect of vernalisation on plant growth.

This video explains the effect of ethylene on plant growth.

This video explains the effect of gibberellins on plant growth.

This video explains why digestion of proteins cannot occur in stomach.

This video explains the process of absorption of fats in the body.

This video discusses how different taste buds detect different food tastes.

This video explains the role of gall bladder in the process of digestion of food.

This video discusses the significance of tearing teeth (canines) in animals.

This video explains the need for mass or bulk flow system of transport in plants.

This video explains the role of cohesion and adhesive force in ascent of sap.

This video discusses that rate of transpiration is different for different plant species.

This video explains how plants have a mechanism to overcome the water loss through transpiration.

This video explains why primary xylem in root is of exarch type whereas in stem it is of endarch type.

This video discusses the mechanism for synthesis of ATP during respiration.

This video discusses the advantages of closed circulatory system over open circulatory system.

This video explains how lower organisms obtain nutrients and oxygen by the process of diffusion.

This video explains why valves are present in veins but not in arteries.

This video explains about ECG and its usefulness in the diagnosis of cardiac disorders.

This video talks about the phylum which has a circulatory system closest to vertebrate circulatory system.

This video explains why diffusion of gases occurs only in the alveolar region and not in the other parts of the respiratory system.

This video discusses the different mechanisms of transport of carbon dioxide in the body.

This video discusses why venous blood is more acidic as compared to arterial blood.

This video discusses why exchange of gases continue to occur in lungs even after maximum expiration.

This video explains why nasal breathing is better than mouth breathing.

This video describes the specificity of hormones to target cells.

This video explains the mechanism of action of steroid hormones.

This video discusses the role of cAMP in hormone action.

This video explains how insulin and glucagon hormones are antagonistic in nature.

This video explains the importance of thymic hormones in immunity.

This video details the role played by renin-angiotensin in the regulation of kidney function.

This video discusses osmoregulation in sharks, amphibians, reptiles, birds and desert mammals.

This video explains why it is not advisable to drink lots of water after heavy sweating.

This video explains why desert mammals have longer Henle's loops.

This video discusses how tubular secretion helps in maintaining ionic and acid-base balance in body fluids.

This video explains why osteoarthritis is more common in old people.

This video explains how synovial joints are freely movable.

This video explains how Hydra shows contractile movements of body though it lacks muscular tissue.

This video explains the sliding filament theory of muscle contraction.

This video explains why cerebral cortex is highly folded.

This video explains the effects due to damage of the temporal lobe.

This video discusses the important features of action potential responsible for conduction of nerve impulse.

This video explains why blind spot is insensitive to light, though it is a part of photosensitive layer.

This video explains why we can see better in dim light even by looking through the corner of the eye.

This video explains substrate level phosphorylation and its occurrence in TCA cycle.

This video explains the concept of multiple fission.

This video explains the concept of plasmotomy.

This video explains the concept of budding.

This video explains the concept of fragmentation.

This video explains the concept of regeneration.

This video discusses the amount of release of energy from different nutrients basis their calorific value.

This video explains how glucose acts as an instant source of energy as compared to proteins.

This video discusses the energy-yielding reactions of glycolysis.

This video explains the importance of purification of water and nutrient salts in hydroponics.

This video discusses the conditions necessary for fixation of atmospheric nitrogen by Rhizobium.

This video explains the symbiotic association of Mycorrhiza.

This video discusses how excess of one micronutrient can prove toxic to the other micronutrient.

This video discusses how excess of one micronutrient can prove toxic to the other micronutrient.

This video discusses the different types of nephridia in earthworms.

This video explains the difference between root hair and trichomes.

This video explains why vascular bundles are radial in roots but conjoint in stems.

This video explains how red muscle fibres are able to produce energy continuously.

This video discusses the adaptation of fossorial organisms in desert topography.

This video discusses about predation as a population intreaction.

This video describes interspecific competition according to Gause's Principle of Competitive Exclusion.

This video describes about the features of population interactions with the help of an example of honeybees.

This video discusses about different stages of population growth curve.

This video discusses the benefits of biodiversity.

This video explains regional or gamma diversity.

This video discusses about the activities which take place in the manipulation zone of the biosphere.

This video discusses about the details of the Rhino conservation project.

This video describes the ex situ conservation method for conservation of endemic species.

This video discusses about secondary succession with the help of an example of Alder trees in Glacial region.

This video describes about alpha diversity in an ecosystem.

This video discusses why population of primary producers is much higher than the tertiary consumers.

This video factors disturbing the ecological balance.

This video discusses about net secondary productivity with the help of an example.

This video describes the chemicals responsible for eutrophication of water bodies.

This video explains how sewage water can be converted into useful water for irrigation through stabilisation ponds.

This video discusses the causes of blue baby syndrome.

This video discusses the Green muffler scheme for the control of noise pollution.

This video discusses the major gases responsible for global warming.

This video talks about biofortification as a means for improving nutritional quality.

This video explains what is a floral diagram, the information provided by the floral diagram and how to draw a floral diagram.

This video explains what is a floral formula, importance of floral formula, the different symbols in a floral formula and gives examples of few floral formulae.

This video describes the classification of gynoecium on the basis of fusion - apocarpous and syncarpous and on the basis of number of carpels- monocarpellary, bicarpellary, tricarpellary, multicarpellary.

This video explains the terms cohesion and adhesion of stamens and different conditions of stamens - monadelphous, diadelphous, polyadelphous, epipetalous, episepalous and epiphyllous stamens.

This video details the polypetalous and gamopetalous corolla and the different regular and irregular forms of gamopetalous corolla - tubular, infundibuliform, rotate, hypocrateriform, urceolate, bilabiate, personate, ligulate corolla.

This video describes the mechanism of photosynthesis, introduces and differentiates between light and dark reactions of photosynthesis.

This video describes the process of electron transport chain during photosynthesis and explains why this process is also called the Z scheme.

This video describes the modifications in CAM plants and the events in CAM cycle.

This video explains the parts of the circulatory system and the process of blood circulation in cockroach.

This video explains the parts of the nervous system and the different sense organs in cockroach.

This video explains the parts of the male and the female reproductive system, process of fertilisation and development in cockroach.

This video explains the parts of the respiratory system and process of respiration in cockroach.

This video explains the process of absorption of food and the mechanism of absorption of carbohydrates, fats, amino acids, electrolytes and water in the body.

This video discusses the concept of activation energy and the factors affecting activation energy.

This video explains the factors which affect the catalytic activity of the enzymes.

This video explains the process of electron transport system and role of electron carriers.

This video details the process and types of fermentation.

This video explains the events in the glycolytic pathway.

This video explains the different parts of the human digestive system.

This video explains the process of digestion in buccal cavity, stomach and small intestine.

This video explains the different parts of the human respiratory system.

This video explains the external and internal structure of lungs.

This video explains inhibition and the different types of inhibition - competitive, non-competitive and allosteric inhibition.

This video describes aestivation and the types of aestivation - valvate, imbricate, twisted, vexillary.

This video details the polysepalous and gamosepalous calyx and the different modifications of calyx - pappus, spinous, spurred, petaloid and hooded.

This video describes the ultrastructure of chloroplast.

This video details the events which take place during aerobic respiration through Krebs cycle.

This video explains the calculations of net gain of ATP during the process of respiration.

This video explains the concept of respiratory quotient for carbohydrates, proteins and fats as substrates.

This video describes the physiological role and deficiency symptoms of common macronutrients.

This video describes the physiological role and deficiency symptoms of common micronutrients.

This video explains the process of translocation of food through phloem by Munch's mass flow hypothesis.

This video details the physical force theories to explain the process of ascent of sap- capillarity theory, imbibition force theory and cohesion-adhesion theory.

This video explains the concept of root pressure and the theory of root pressure for ascent of sap.

This video discusses the mechanism of uptake and transport of mineral ions.

This video discusses the events in a cardiac cycle - atrial systole and ventricular diastole, atrial diastole and ventricular systole and joint diastole.

This video explains the two types of circulatory pathways - open circulatory and close circulatory pathway.

This video explains the conducting system of the heart - sinoatrial node, purkinje fibres and bundle of His.

This video explains the process of coronary circulation in human heart.

This video details the process of blood clotting or blood coagulation.

This video describes the phases of cell cycle - interphase and mitotic phase.

This video discusses the functions and the roles of PCT, DCT, loop of Henle and collecting duct in urine formation.

This video explains the process of haemodialysis and the role of artificial kidney.

This video explains the structure and the role of pineal gland in the body.

This video describes the structure of pituitary gland, the hormones secreted and the diseases caused due to hypo and hypersecretion of these hormones.

This video describes the structure of adrenal gland, the hormones secreted and the diseases caused due to hypo and hypersecretion of these hormones.

This video describes the structure of pancreas, hormones secreted and their effects on the body.

This video describes the structure of testes and ovaries, hormones secreted and their effects on the body.

This video describes the structure of thymus gland, hormones secreted and their effects on the body.

This video describes the structure of thyroid gland, hormones secreted and their effects on the body.

This video explains the meaning, types and advantages of apomixis.

This video details artificial vegetative propagation and explains the different methods of artificially propagating plants - cutting, layering, grafting and micropropagation.

This video details natural vegetative propagation and explains the different methods of naturally propagating plants through roots, stems, leaves, bulbils and turions.

This video explains about AIDS - causes, symptoms, diagnosis and preventive measures.

This video explains the different techniques of animal breeding - inbreeding and outbreeding and their types.

This video explains the different phases of the Calvin or C3 cycle of photosynthesis.

This video describes the mechanism of cyclic and non-cyclic photophosphorylation of photosynthesis.

This video explains the mechanism of Hatch-Slack or C4 pathway of photosynthesis.

This video describes the Miller-Urey experiment for chemical evolution of life.

This video explains the Oparin-Haldane's theory of evolution of life.

This video details about palaentology - fossils and their significance in the study of evolution.

This video explains about parthenogenesis - types and advantages and disadvantages.

This video explains the structure of heart in vertebrates such as fishes, amphibians, reptiles, birds and mammals.

This video explains the location, structure and functions of human heart.

This video explains the physiology of the process of micturition.

This video explains the physiology of the process of selective reabsorption.

This video explains the structure and functions of different kinds of skull bones.

This video describes the structure and functions of different kinds of ribs in the body.

This video describes the structure and functions of sternum bone in the body.

This video details the bones of the forelimbs and the hindlimbs.

This video describes the bones of the pectoral girdle - scapula and clavicle.

This video describes the bones and the functions of the pelvic girdle.

This video describes the different types of heart based on type of blood, origin of impulse and structure of the heart.

This video explains the process of ultrafiltration during urine formation in the body.

This video explains the process of urine concentration by the counter-current mechanism.

This video discusses the controlled breeding experiments of animal breeding - techniques of artificial insemination and multiple ovulation embryo transfer.

This video details the steps in plant breeding.

This video explains the symplast pathway for transport of water and minerals in plants.