NEET 2027 Zoology
Chapter-wise notes with quizzes. Free to read — no login needed.
Chapter 1: Zoology Orientation and Syllabus
A quiz-free orientation chapter for the NEET UG 2027 Zoology course. It explains the latest officially published exam pattern, maps the current NMC Biology syllabus to Gyan Ghar's 13 Zoology chapters, identifies important syllabus boundaries, and shows students how to use the course without relying on unsupported chapter-weightage predictions. Because the NEET UG 2027 bulletin and syllabus have not yet been published, all pattern and scope statements are clearly benchmarked to the official NEET UG 2026 documents for academic session 2026-27 and must be rechecked when the 2027 notices appear.
Chapter 2: Animal Kingdom
Animal Kingdom is a high-yield NCERT classification chapter for NEET UG. It covers the basis of classification, the ten non-chordate phyla from Porifera to Hemichordata, the protochordates and all major vertebrate classes. The final set reinforces the diagnostic characters, examples and exceptions that matter most in NEET.
Chapter 3: Structural Organisation in Animals
Aligned to the currently published NMC Biology syllabus, this chapter covers the four animal tissue types and a brief account of frog morphology and the anatomy and functions of its digestive, circulatory, respiratory, nervous and reproductive systems. The teaching is organised around NEET's most useful distinctions—site, structure, function, route and count.
Chapter 4: Biomolecules
Biomolecules covers the chemical composition of living tissue; small and large biomolecules; proteins, carbohydrates, lipids and nucleic acids; and enzyme action, classification, activity factors and cofactors. The six sections progress from NCERT-anchored concepts to integrated NEET practice.
Chapter 5: Breathing and Exchange of Gases
A structured NEET UG study chapter on how oxygen enters the body, reaches the tissues and is used alongside the removal of carbon dioxide. It covers respiratory organs in animals, the human respiratory system, the mechanism and regulation of breathing, respiratory volumes and capacities, gas exchange across the diffusion membrane, transport of oxygen and carbon dioxide, and asthma, emphysema and occupational respiratory disorders. Six graded sets combine NCERT-focused notes, accurate diagrams and single-correct questions with explanations for recall, calculation, comparison and application practice.
Chapter 6: Body Fluids and Circulation
Body Fluids and Circulation is a high-yield NCERT physiology chapter for NEET UG. It covers blood and lymph, ABO and Rh grouping, coagulation, circulatory pathways, human heart anatomy, the conducting system, cardiac cycle and output, ECG, cardiac regulation and common circulatory disorders.
Chapter 7: Excretory Products and their Elimination
Excretory Products and their Elimination is a high-yield NCERT physiology chapter for NEET UG. It covers nitrogenous wastes and animal excretory structures, the human urinary system and nephron, urine formation and tubular functions, the counter-current mechanism, kidney regulation, micturition and renal disorders. Six graded sets combine NCERT-aligned notes and 100 single-correct questions with full explanations. The final set reinforces the sequences, values, comparisons and statement-based distinctions that matter most in NEET.
Chapter 8: Locomotion and Movement
Locomotion and Movement is a high-yield NCERT chapter for NEET UG covering movement types, muscle tissue, skeletal-muscle organisation, contractile proteins, the sliding-filament mechanism, the human skeleton, joints and muscular-skeletal disorders. Three graded sets provide NCERT-aligned notes and 55 single-correct questions with full explanations. The final set is a genuine NEET past-question set: fifteen items from the 2019 to 2026 papers, each carrying its year and question number.
Chapter 9: Neural Control and Coordination
Neural Control and Coordination covers neuron structure and types, myelinated and non-myelinated fibres, central, peripheral and visceral organisation, resting and action potentials, impulse propagation, synaptic transmission and the regions of the human brain. Two sets provide NCERT-aligned notes and 35 single-correct questions with full explanations. The final set holds seven genuine NEET past questions, each carrying its year and question number, alongside eight clearly-labelled exam-style items.
Chapter 10: Chemical Coordination and Integration
Chemical Coordination and Integration covers the human endocrine system: the hypothalamus, pituitary, pineal, thyroid, parathyroid, adrenal, pancreas and gonads, their hormones and functions, and the disorders of hypo- and hypersecretion. Three sets provide NCERT-aligned notes and 51 single-correct questions with full explanations. The final set holds twelve genuine NEET past questions, each carrying its year and question number, alongside three clearly-labelled exam-style items.
Chapter 11: Human Reproduction
Human Reproduction covers the male and female reproductive systems and the microscopic anatomy of testis and ovary, gametogenesis, the menstrual cycle, fertilisation, embryo development up to the blastocyst, implantation, and pregnancy, parturition and lactation in outline. Three sets provide NCERT-aligned notes and 57 single-correct questions with full explanations. The final set is a genuine NEET past-question set: twenty-five items from the 2019 to 2026 papers, each carrying its year and question number.
Chapter 12: Reproductive Health
Reproductive health is the chapter where the biology of reproduction meets public health, law and clinical practice, and NEET treats it as a high-yield recall chapter rather than a reasoning one. It opens with what reproductive health actually means in WHO's sense - total well-being in all aspects of reproduction, physical, emotional, behavioural and social - and with India's family planning programme, begun in 1951 and now running as Reproductive and Child Health Care. From there it covers why the population had to be brought under control, the termination of pregnancy with its legal frame and its humanitarian grounds, and amniocentesis together with the ban on its misuse. The second section takes contraception method by method: the natural methods and the exact condition under which each works, the barrier devices, the three classes of intrauterine device with the named devices in each, oral pills and Saheli, injectables and implants, emergency contraception and its seventy-two hour window, the two sterilisation operations by site and route, and the side effects with the judgement the chapter passes on them. The third turns to the sexually transmitted infections - the roster, the curability rule, the routes, the complications and the three rules for staying clear of them - and then to infertility and the assisted reproductive technologies used against it. Three practice sections of seventeen questions each, and a closing set of fifteen genuine NEET items drawn verbatim from the 2019 to 2026 papers, including the 2026 re-test, so you can measure yourself against the real thing.
Chapter 13: Evolution
Evolution is the chapter that asks five questions and answers them with evidence rather than with mechanism alone: how life began, what shows that it has changed, who first explained the change, how the change actually works, and where our own species came from. It opens on the early earth - the primitive atmosphere, the splitting of water vapour and the filling of the oceans - and on the accounts people held before the modern one, from special creation and spontaneous generation to panspermia, with Pasteur's pair of flasks and Oparin, Haldane and Miller's sealed experiment. The evidence follows: fossils in dated strata, homologous and analogous organs and the two processes behind them, vestigial organs, embryos and the universal genetic code, and adaptive radiation from Darwin's finches to the Australian marsupials. The second half turns to the theories and the mechanisms - Lamarck, Darwin and the voyage of the Beagle, Wallace, de Vries and the Modern Synthetic theory, then mutation and recombination, gene flow, genetic drift with the founder effect and the bottleneck, the Hardy-Weinberg principle and the agencies that disturb it, the three types of natural selection and industrial melanism - and closes on the human line from Dryopithecus to Homo sapiens. Two practice sections of twenty questions each, and a closing set of eighteen genuine NEET items drawn verbatim from the 2019 to 2026 papers, including the 2026 re-test, so you can measure yourself against the real thing.
Chapter 14: Human Health and Disease
Human Health and Disease is the chapter NEET returns to every single year, and it is unusual in being almost entirely recall - which means the marks are there for anyone willing to hold a lot of small facts steady. It opens on what health actually is: a state of complete physical, mental and social well-being rather than the mere absence of illness, and the things that build it or wear it down. Then comes the roster of infectious diseases, which is where most of the paper's questions live - typhoid and the carrier who spread it through the kitchens of New York, pneumonia and the two bacteria behind it, the common cold that stops at the upper airway, malaria with its three parasite species and the toxin released when the red cells burst, amoebiasis, ascariasis, filariasis and ringworm, each with its own agent, its own route in and its own set of signs. The middle of the chapter is immunity: the barriers a person is born with, the defence that has to be earned by meeting a pathogen, the shape of an antibody and the five classes it comes in, active against passive, the lymphoid organs where lymphocytes are made and where they later meet antigen, and the three ways the system misfires - allergy, autoimmunity and AIDS. The chapter closes on cancer, from the loss of contact inhibition to detection and treatment, and on drug and alcohol abuse in adolescence. Four sections, sixty-eight questions, and a closing set of seventeen genuine NEET items so you can measure yourself against the real paper.