NEET Biology Mnemonics Chapter-Wise PDF for Easy Memory Tricks

NEET Biology has many classifications, scientific terms, cycles, examples, and sequences that students need to remember. NEET Biology mnemonics make revision easier by turning long information into short and simple memory tricks.

This chapter-wise PDF covers useful mnemonics for Class 11 and Class 12 Biology. It includes topics from taxonomy, plant physiology, human physiology, reproduction, genetics, biotechnology, and ecology. Students can use these memory tricks for quick revision and better recall during NEET preparation.

NEET Biology Mnemonics for Class 11 and 12

The mnemonics are arranged unit-wise, making it easier to revise important Biology facts without going through long lists repeatedly. Use them after understanding the concept from your textbook for faster and more effective revision.

👉 Download PDF NEET Biology Mnemonics for Class 11 and 12

Class 11 Biology Mnemonics for NEET

Unit I Mnemonics
No.	Topic	Mnemonic	Meaning / Details
1	Life Processes	GReat Mother Could Rest	Growth, Reproduction, Metabolism, Cellular Organization, Responsiveness
2(i)	Taxonomic Categories	Donald King Phoenix Chose Olive Fried Greek Salad	Kingdom, Division/Phylum, Class, Order, Family, Genus, Species
2(ii)	Taxonomic Categories	Mneconomics Key Protected Documents, Copies & Folders Got Stolen	Kingdom, Phylum/Division, Class, Family, Genus, Species
3	Suffixes used for Taxonomic Categories	Doctor Came in OPD and Suggested For Sterilisation : Patient Observed At ICU and Operated	Taxonomic category: Suffix used, Division: Phyta; Class: Opsida; Order: Ales; Suborder: incae; Family: Aceae; Subfamily: Oidae
4	Taxonomical Aids	Hey Brother, Mom and Me went to Zoological park and Flat Keys Found Missing	Herbarium, Botanical gardens, Monograph, Manuals, Zoological parks, Flora, Keys, Fauna, Museums
5	Nomenclature Types	HIS PLEN	Holotype, Isotype, Syntype, Paratype, Lectotype, Epitype, Neotype
6	Characteristics of Living Beings	GENR₃M₂	Growth, Excretion, Nutrition, Reproduction, Responsiveness, Respiration, Movement, Metabolism
7	Some Major Groups of Eubacteria and Characteristics	ACCount Get PRESented	Actinomycetes, Chemoautotrophs, Cyanobacteria, Gliding bacteria, Pseudomonas, Rickettsias, Enterobacteria, Spirochaetes
8	Types of Arrangement in Bacterial Flagella	AMALP : 0122n	Atrichous: 0; Monotrichous: 1; Amphitrichous: 2; Lophotrichous: 2 or more; Peritrichous: Numerous
9	Types of Classification System	American Nuclear Power Plant : Let Both Enganged in Show	Artificial classification system: Linnaeus; Natural classification system: Bentham and Hooker; Phylogenetic classification system: Engler and Prantl; Phenetic classification system: Sneath and Sokal
10	Classification of Kingdom Protista	Pineapple Cheese Pineapple : Dragonfruit Starfruit Cranberry	Photosynthetic protists: Dinoflagellates, Diatoms, Euglenoids; Consumer protists: Slime moulds/Myxomycetes; Protozoan protists: Ciliata, Sporozoa, Sarcodina, Zooflagellata
11	Systems of Classification of Organisms	Two Thieves Found Fighting : Car Engine Cooled With water	Two Kingdom classification system: Carlous Linnaeus; Three Kingdom classification system: Ernst Haeckel; Four Kingdom classification system: Copeland; Five Kingdom classification system: Whittaker R H
12	Classification of Kingdom Fungi	PASsing By Dam : Looking So Calm and Interesting	Phycomycetes: Rhizopus, Mucor, Albugo; Ascomycetes: Neurospora, Yeast, Penicillium; Basidiomycetes: Agaricus, Ustilago, Polyporous; Deuteromycetes: Fusarium, Cercospora, Trichoderma
13	Five Kingdom Classification by Whittaker	Monks Pray For Public’s Amity	Monera, Protista, Fungi, Plantae, Animalia
14	Kingdom Fungi Multicellular decomposers	Pay And Book Date	Phycomycetes, Ascomycetes, Basidiomycetes, Deuteromycetes
15	Algae	Great Britain Round	Chlorophyceae: Green algae; Phaeophyceae: Brown algae; Rhodophyceae: Red algae
16	Animal Kingdom Classification	Prince Charle’s Cousin Assorted Plums	Porifera, Coelenterata, Ctenophora, Aschelminthes, Platyhelminthes
17	Animal Kingdom Classification	Aunt Molly Asked Edwin to Have CHocolates	Annelida, Mollusca, Arthropoda, Echinodermata, Hemichordata, Chordata
18	Chordates	Ultra Clean Vehicle	Urochordata or Tunicata, Cephalochordata, Vertebrata
Unit II Mnemonics
1	Leaf Modification	Total Smoke Production Bolstered Pollution	Tendril, Spine, Phyllode, Bulb, Pitcher
2	Placentation	Football Club Barcelona Missed Approach Point	Free Central, Basal, Marginal, Axile, Parietal
3	Animal tissues	EMUCON	Epithelial, Muscular, Connective, Nervous
4	Loose Connective Tissue	AreA	Areolar and Adipose
5	Dense Connective Tissue	RIegular and Irregular	Regular and Irregular
6	Supportive Connective Tissue	CarBon	Cartilage and Bone
7	Fluid Connective Tissue	Live Boldly	Lymph, Blood
8	Muscular	SSC	Smooth, Skeletal, Cardiac
Unit III Mnemonics
1	Endomembrane system	George Earned Legendary Vehicle	Golgi apparatus, Endoplasmic reticulum, Lysosomes, Vacuoles
2	Bacterial Shapes	Battle Construction Vehicle Services	Bacillus, Coccus, Vibrio, Spirillum
3	Classification of Enzymes	HILL Of Tibet	Hydrolases, Isomerases, Ligases, Lyases, Oxidoreductases, Transferases
4	Primary Metabolites	NASAL	Nucleic acids, Sugars, Amino acids, Lipids
5	Secondary Metabolites	PATE	Pigments, Alkaloids, Terpenoids, Essential oils
6	Cell Cycle and Mitosis	I Played Myself A Trick	Interphase, Prophase, Metaphase, Anaphase, Telophase
7	Meiosis	Lazy Zebra Portrayed Depiction of Death	Leptotene, Zygotene, Pachytene, Diplotene, Diakinesis
Unit IV Mnemonics
1	Facilitated Diffusion	USA	Uniport, Symport, Antiport
2	The Fate of Nitrogen	RAT	Reductive amination, Transamination
3	Reductive Amination	Red Algae And Kangaroo Arrived after Green Algae	Alpha-ketoglutaric acid + Ammonia → Glutamic acid
4	Micronutrient	IZCN Might Classify Mammalian Birds	Iron, Zinc, Copper, Nickel, Molybdenum, Chlorine, Manganese, Boron
5	Macronutrients	HONorable PM Started PC	Hydrogen, Oxygen, Nitrogen, Phosphorus, Magnesium, Sulphur, Potassium, Calcium
6	Pigments Involved in Photosynthesis	Charles Also Booked Xan’s Car	Chlorophyll a, Chlorophyll b, Xanthophyll, Carotenoid
7	C3 or Calvin cycle	Cash Reserve Ratio	Carboxylation, Reduction, Regeneration
8	Cyclic Photophosphorylation	Cyprus Passed In Arabic	Cyclic Photophosphorylation, PS I, ATP
9	Chlorophyll a	Coronary Artery Bypass Grafting	Chlorophyll a bright or blue green algae: CABG
10	Chlorophyll b	Collage Based Youth Grant	Chlorophyll b yellow green algae: CBYG
11	Proteins Catabolism	PAPA	Protein, Amino Acids, Pyruvic Acid, Acetyl CoA
12	Glucose Catabolism	Ginny Gony Fried Dried Garlic Potato Avocado	Glucose 6-P, Fructose 1,6 BP, Dihydroxy acetone phosphate, Glyceraldehyde 3-phosphate, Pyruvic acid, Acetyl CoA
13	Fats Catabolism	Find Files And Go Away	Fatty Acids, Glycerol, Acetyl CoA
14	Citric Acid Cycle	Account Cheque AKA Service Money Order	Acetyl CoA, Citric acid, Alpha Ketoglutaric Acid, Succinic acid, Malic Acid, OAA
15	Conditions of Growth	Won ONe True Last Game	Water, Oxygen, Nutrients, Temperature, Light, Gravity
16(a)	Photoperiodism	Dedicated To	Day neutral plant – Tomato
16(b)	Photoperiodism	Supreme Court	Short Day plant – Chrysanthemum
16(c)	Photoperiodism	Little Red Button	Long Day Plant – Radish, Barley
17	Plant Growth Regulators (Phytohormones)	All Girls Called Executive Assistant Before Assessment	Auxin, Gibberellin, Cytokinin, Ethylene, ABA
Unit V Mnemonics
1	Salivary Gland	PaSS	Parotid, Sublingual, Submandibular
2	Histology of Alimentary Canal	SMS Me	Serosa, Muscularis, Sub-mucosa, Mucosa
3	Alimentary Parts	MP Of State Sikkim Lost Revenue Account	Mouth, Pharynx, Oesophagus, Stomach, Small intestine, Large Intestine, Rectum, Anus
4	Gastric Glands	Mutual Protection Pact / My Power Point	Mucus neck cell, Peptic cells, Parietal cells
5	GI hormones	Global Education School Called Volunteer Services	Gastrin, Enterogastrone, Secretin, Cholecystokinin, Villikinin, Stomatostatin
6	Gills	File Transfer Protocol	Fishes, Tadpoles
7	Prawn Tracheal Tube	Integrated Crop Management	Insects, Centipede, Millipede
8	Body Surface	Standard Cubic Feet	Sponges, Coelenterate, Flatworm
9	Plasma	Assume Good Faith	Albumin, Globulin, Fibrinogen
10	Granulocytes	Gram Negative Enteric Bacteria	Neutrophil, Eosinophil, Basophil
11	Agranulocytes	All Luggage Missing	Lymphocytes, Monocytes
12	Heart valves	Text Book Solutions	Tricuspid valve, Bicuspid valve, Semilunar valve
13	Circulatory Pathways	(a) On A Mission or (b) Operation And Maintenance	Open: Arthropods, Molluscs
14	Urine Formation	Grand Trunk Road Time Slot	Glomerular filtration, Tubular Reabsorption, Tubular secretion
15	Disorders of the Excretory System	Ultra Rapid Fire Restored Coffee Grouds	Uremia, Renal Failure, Renal Calculi, Glomerulonephritis
16(a)	Modes of Excretion	Urban Mass Transport Agency	Ureotelism: Mammals, Terrestrial Amphibian
16(b)	Modes of Excretion	Animals Best Friends Are Always Ideal	Ammonia: Bony Fishes, Aquatic Amphibian, Insects
16(c)	Modes of Excretion	User Address Book	Uric Acid: Birds
17	Joints	Skin Cancer Foundation	Synovial, Cartilaginous, Fibrous
18	Synovial (Movable)	Best Soldier Hid Packed Gun System	Ball and Socket, Hinge, Pivot, Gliding, Saddle
19	Axial (80 bones)	Careless Team Learnt Self Care	Cervical, Thoracic, Lumbar, Sacral, Coccygeal
20	Fore Brain	Chance To Hit / Contract To Hire	Cerebrum, Thalamus, Hypothalamus
21	Hind Brain	PCM – Physics, Chemistry, Maths	Pons, Cerebellum, Medulla
22	Outer Ear	PET	Pinna, Ear canal, Tympanic membrane
23	Inner Ear	United States Court	Utriculus, Sacculus, Cochlea
24	Pancreas	BIg AGency	Beta Insulin, Alpha Glucagon
25	Adrenal Cortex	American College of Medical Genetics	Mineralocorticoids, Glucocorticoids
26	Adrenal Medulla	AMAN / All Missing As Negative	Adrenaline and Noradrenaline
27	Hormones of Heart, Kidney and Gastrointestinal Tract	Kerala Real Estate Company	Kidney-Renin, Erythromycin, Calcitriol

Class 12 Biology Mnemonics for NEET

Unit I Mnemonics
No.	Topic	Mnemonic	Meaning / Details
1(a)	Vegetative Reproduction	Positive Example Based Learning	Potato-Eyes, Bryophyllum–Leaf buds
1(b)	Vegetative Reproduction	GRAB	Ginger: Rhizome, Agave: Bulbil
1(c)	Vegetative Reproduction	WHO	Water hyacinth: Offset
2	Formation of Fruit	Too Many Fake Acronyms	True Fruit = Mango, False Fruit = Apple
3(a)	Pollination	Weight Gain	Wind Pollinated: Grasses
3(b)	Pollination	World association for Visually Handicapped	Water Pollinated: Vallisneria, Hydrilla
3(c)	Pollination	Integral Yoga	Insect Pollinated: Yucca
4	Yucca Dicot embryo	Personal Care Heals Rare Remorse	Plumule, Cotyledon, Hypocotyl, Radicle, Rootcap
5	L.S. of Monocot Embryo	Stem Cell Storage Enable Regenerative Repair of Cancer	Scutellum, Coleoptile, Shoot apex, Epiblast, Radicle, Rootcap, Coleorhiza
6(a)	Accessory Ducts in Females	Our United Villages	Oviduct, Uterus, Vagina
6(b)	Accessory Ducts in Females	Infection And Immunity	Infundibulum, Ampulla, Isthmus
7	External Genitalia in Females	Mobile’s Light Led Him Crazy	Mons pubis, Labia major, Labia minor, Hymen, Clitoris
8	Accessory Glands in Males	Simple Play Back / Saint Peters Burg	Seminal vesicle, Prostate, Bulbourethral gland
9	Accessory Ducts in Males	Revise Via Elementary Volume	Rete testis, Vasa efferentia, Epididymis, Vas deferens
10	STDs	Haryana Govt. Heads Girl’s School	Hepatitis B, Genital herpes, HIV, Gonorrhoea, Syphilis
11	Birth Control Methods	Swiss National Bank’s Indian Office	Surgical, Natural, Barrier, IUD, Oral contraceptive
12	Barrier Methods	CDC Volunteered Student’s Junior Fellowship	Condoms, Diaphragm, Cervical caps, Vaults, Spermicidal creams, Jellies, Foams
13	Chromosomal Disorders	Driver Knowledge Test	Down’s syndrome, Klinefelter, Turner
14	Non-Mendelian Inheritance	I Can Manage Physics	Incomplete dominance, Codominance, Multiple alleles, Pleiotropy
15	Genetic Code	Tuesday Night Dinner Club Union	Triplet, Non-ambiguous, Degenerate, Commaless, Universal
Unit II Mnemonics
1	Factors Affecting	Grand Mother, Grand Daughter Meet Great Royals Near Society	Gene Migration, Genetic Drift, Mutation, Genetic Recombination, Natural Selection
Unit III Mnemonics
1	Detection & Diagnosis	Book Reader Club Manager	Biopsy, Radiography, CT, MRI
2(a)	Lymphoid Organs	Profit Before Tax	Primary: Bone marrow, Thymus
2(b)	Lymphoid Organs	Sea Surface Level Temperature	Secondary: Spleen, Lymph node, Tonsils
3	Type of Non-communicable or Non-Infectious Diseases	3A 2M HD	Allergic diseases, Addiction disorders, Ageing disorders, Mental illness, Malfunctioning of organs, Hormonal diseases, Deficiency diseases
4	Types of Hepatitis	ABCDE : Example Shows No ConsideratioN : RD 3R	Hepatitis A: Epidemic hepatitis: SS RNA; Hepatitis B: Serum hepatitis: Ds DNA; Hepatitis C: Non-A, Non-B, Transfusion Hepatitis: SSRNA, enveloped; Hepatitis D: Co-infection Hepatitis: SS RNA; Hepatitis E: Non-A, Non-B, Transfusion Hepatitis: SS RNA, non-enveloped
5	Short forms of National programmes to eradicate major communicable diseases	CC LC FC ME SE	National Cholera Control Programme, National Leprosy Control Programme, National Filaria Control Programme, National Malaria Eradication Programme, National Smallpox Eradication Programme
6	Types of Immunoglobulins	GAMED : Chess Soccer Cricket Hockey Basketball	Immunoglobulin G, A, M, E, D and their functions
7(a)	Fisheries	Fresh Civil Right Center	Freshwater fishes – Catla, Rohu, Common carp
7(b)	Fisheries	Marked High Speed Machine	Marine fishes – Hilsa, Sardines, Mackerel
Unit IV Mnemonics
1	Enzymes Used in Biotechnology	LILY Rose Scent : Rose Daisy Carnation Sunflower	DNA Ligase: DNA Repair enzyme; Lyases: Dissolve cell wall; Restriction enzymes: Cleaves DNA; Synthetase: In-vitro DNA Synthesis
2	Important Tools in Biotechnology	HEL3G : 40 VGGRH	Heat Shock: Sudden temperature raised to 40°C; Electroporation: High voltage pulse; Liposomes: Genes to cells in vivo; Gene gun: Gold particles; Genetic marker: R plasmid; Gene synthesis: Hormone somatostatin
3	Animal Clones	NDN : GSG : India Scotland USA	Noori: Pashmina Goat: India; Dolly: Sheep: Scotland; Noah: Asian Gaur: USA
4	Scientists to Remember	Please, Come Here SMith : GAMED	Paul Berg, Cohen and Boyer, Hans Spemann, Smith and Nathans, Michelson
Unit V Mnemonics
1	Achievement through Transgenic crops or GM crops	Please Get Biology Notes : How Chemistry Take Flex	Protein of interest: Hirudin; Production of desired genotype: Cry protein; Modification of existing biosynthetic pathway: Transgenic rice; Masking of expression of native gene: Flavr savr Tomato
2	Biological Weapon Agents	She Added Questions But Encouraged To Practice Hard	Smallpox, Anthrax, Q-fever, Botulinum, Encephalitis, Tularemia, Plague, Haemorrhagic fever
3	Gene Inserted in Transgenic Animals and Their Benefits	Stop Gossiping! Come Prepare Food : IX Tofu Left Broken and Heated : Hot Tomato Chilli Paste Mashed	Sheep: Anti-haemophilic factor IX; Goat: TPA gene; Cow: Lactoferrin; Pigs: bGH; Fish: hGH
4	Shape of Pyramid : Population growth type	Three Books Used : Eric Stop Daydreaming	Triangular shaped: Expanding or Growing; Bell shaped: Stable; Urn shaped: Declining
5	Population Interaction	Competition Always Muffle Politics : Rivalry Has Fabulous Benefits	Competition: Rivalry; Antagonism: Harmful; Mutualism: Favourable but not Obligatory; Proto-cooperation: Beneficial to both
6	Classification of organisms into four temperature groups	3MH : TSTA	Megatherms: Tropical zones; Mesotherms: Sub-tropical zones; Microtherms: Temperate zones; Hekistotherms: Arctic zones
7	Some Important Laws to Remember	3/2 BAG : Population density of Birds and Mammals in Cooler Area is Abundant	3/2 thinning law; Bergman’s law; Allen’s law; Gloger’s law
8	Measurement of Productivity and Related Ecosystem	HALL : Come On And Grab Desert : 210.2<0.2	High productive ecosystem: 2–4; Average productive ecosystem: 1–2; Less productive ecosystem: 0.2–1; Least/Low productive ecosystem: <0.2
9	Steps in General Process of Succession	NIght Candle Rays Shined	Nudation, Invasion, Competition, Reaction, Stabilisation
10	Nitrogen Cycle Processes	Among Ninety Denominators Nine fixed : ONAM FOR RED ATNAM	Ammonification: Organic N to ammonia, Nitrification: Formation of nitrites and nitrates, Denitrification: Reduction of nitrates, Nitrogen fixation: Atmospheric Nitrogen to ammonia

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NEET Biology Mnemonics PDF for Easy Memory Tricks

The NEET Biology Mnemonics Chapter-Wise PDF can help students revise important Class 11 and Class 12 Biology topics in less time. These memory tricks are useful for recalling classifications, cycles, examples, biological terms, and important sequences during exam preparation.

Students should use these NEET Biology mnemonics along with NCERT and regular practice. Mnemonics work best as a revision tool after the concept is understood properly. Regular use can make last-minute revision faster and help students remember important Biology facts more easily.

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