NEET Biology Notes PDF 2027 | Class 11 & 12

*Chapter 13: PHOTOSYNTHESIS IN HIGHER PLANTS* 🌿   *20 NEET LEVEL QUESTIONS - "NOT ON GOOGLE"* 🔥   _With Detailed Solutions - 1-2Q concepts can come in NEET 2027_ --- ### *SECTION A: CONCEPTUAL + NCERT DEEP* `10Q` *Q1.* In C4 plants, Rubisco is active in bundle sheath cells but not in mesophyll. Reason? A. PEPcase is absent in mesophyll B. O2 concentration is low in bundle sheath = Less photorespiration C. Calvin cycle does not occur in mesophyll D. Bundle sheath chloroplasts are agranal Ans: B + D  Detail: In mesophyll, PEPcase fixes CO2 → OAA → Malate. Malate goes to bundle sheath and releases CO2. In bundle sheath, CO2 high + O2 low = Rubisco carboxylase activity increases, oxygenase decreases. Plus bundle sheath chloroplasts are agranal = Less PS-II = No O2 formed = Photorespiration negligible. This is why productivity is high in Maize, Sugarcane. NEET Trap: Option C is wrong because mesophyll has CO2 fixation even if Calvin is absent. *Q2.* When does cycli...

Hello Friends 👋 As a NEET Dropper, I'm sharing my complete notes of Chapter 15: Plant Growth and Development with you all. Sigmoid Curve se leke 5 PGR tak - Full NCERT + PYQ + Google se Hatke Tricks!  2-3 Questions fix aate hain NEET me is chapter se 🔥 Jo coaching me bhi nahi milta wo yaha hai = Auxin ka Avena Test + GA ka Bakane Disease + Cytokinin ka Richmond-Lang + Ethylene Triple Response + ABA Stress Hormone Hope it helps you crack NEET 2027! 📚 Save for revision & Share with other droppers 💯 #NEET2027 #NEETDropper #PlantGrowthAndDevelopment #Auxin #Gibberellin #Cytokinin #Ethylene #ABA #Photoperiodism #Vernalization #NCERTBiology #BiologyNotes --- ### *1. GROWTH KYA HAI* `Definition Line` Definition = Irreversible Permanent Increase in Size, Volume, Weight, Dry Mass Features = Measurable + Quantitative + Accompanied by Metabolism Plant Growth = Indeterminate = Due to Meristems = Apical, Intercalary, Lateral Open Growth = New Cells Added Throughout Life = Leaves, Flower...

*Hello Friends 👋 Class 11 Biology Chapter 13: PHOTOSYNTHESIS IN HIGHER PLANTS 🌞 ke complete NCERT Short Notes le aaya hu. NEET 2027 walo ke liye 3-4 Questions Fix hai = 12-16 Marks Pakka 💯 Save kar lo, revision me kaam aayega ✅   ### *1. WHAT IS PHOTOSYNTHESIS* `Definition Line` Definition = Anabolic + Endergonic + Redox Process Equation: 6CO2 + 12H2O → C6H12O6 + 6H2O + 6O2 ↑ Discovery: O2 from H2O Not CO2 = Proved by Ruben, Hassid, Kamen = O18 Isotope Chlorophyll = Primary Pigment = Trap Light Energy Site = Mesophyll Cells = Chloroplast = 5-7 µm Length, 2-4 µm Width ### *2. EARLY EXPERIMENTS* `1Q Pakka` **Scientist** **Experiment** **Conclusion** **Year** **Joseph Priestley** Mint + Candle + Mouse in Bell Jar Plants Restore Air = O2 Release 1770 **Jan Ingenhousz** Hydrilla + Sunlight O2 Released Only in Light + Green Part 1779 **Julius von Sachs** Leaf + Iodine Test Glucose Made in Green Part = Starch Storage 1865 **T.W. Engelmann** Cladophora + Prism + Aerobic Bacteria Ac...

*Hello Friend 👋 NEET 2027 ki taiyari kar rahe ho? Ye NCERT Class 11 Biology Chapter 12 Mineral Nutrition ke sabse important short notes hain. Inko padh ke 1-2 Question NEET me pakke fix hain. ### *1. HYDROPONICS = Soil-less Culture* Inventor = Julius von Sachs 1860 Use = Test Essentiality of Elements + Commercial Farming Essential = Aeration + pH + Balanced Nutrients Example = Tomato, Lettuce, Seedless Cucumber Aeroponics = Roots in Air + Nutrient Mist = NASA ### *2. ESSENTIAL ELEMENTS = 17 Total* `Criteria by Arnon & Stout` 1. Element needed for Complete Life Cycle 2. Requirement Specific = No Substitute 3. Directly Involved in Metabolism **Type** **Conc.** **Elements** **Macronutrients = 9** >10 m mole/kg **C H O N P K Ca Mg S** = **C**hhotu **H**as **O**nly **P**layed **K**ing **N**ow **S**ince **Ca**lcium **Mg** **Micronutrients = 8** <10 m mole/kg **Fe Mn Cu Zn B Mo Cl Ni** = **F**or **M**y **Cu**te **Z**inc **B**ro **Mo**ney **Cl**ear **Ni**ce ### *3. MACRONUTRIENTS - ...

*Hello Friends, As a NEET Dropper, I'm sharing my complete short notes of Chapter 6: Anatomy of Flowering Plants with you all. Dicot vs Monocot Root, Stem, Leaf + Secondary Growth + Annual Rings - sab cover hai! 🔬 Hope it helps you crack NEET 2027! 📚🔥 Save for revision & Share with other aspirants 💯 _Class 11 Biology | NCERT Line-by-Line + PYQ Hotspots | 3-4Q Fix Aate Hain_   ### *1. The Tissues* `1Q Pakka`   *A. Meristematic Tissue* = Dividing cells **Type** **Location** **Function** **NEET Point** **Apical** Root tip, Shoot tip Primary growth = Length increase Causes elongation **Intercalary** Base of leaves, Internodes Elongation of internodes Monocots = Grass **Lateral** Cambium, Cork cambium Secondary growth = Girth increase Dicots only, Absent in monocots *B. Permanent Tissue* = Mature cells   1. *Simple Permanent*: All cells similar      - *Parenchyma*: Living, Thin wall, Cellulose, Isodiametric. *Functions*: Storage, Phot...

Hello Friends, As a NEET Dropper, I'm sharing my complete short notes of Chapter 2: Biological Classification with you all. Hope it helps you crack NEET 2027! 📚🔥 Save for revision & Share with other aspirants 💯*NEET 2027: Chapter 2 Biological Classification - Complete Short Notes* 🦠   _Class 11 Biology | NCERT + PYQ Hotspots | 3-4Q Fix Aate Hain_   ---   ### *1. Systems of Classification*   1. *Two Kingdom*: Linnaeus. Plantae & Animalia. _Problem_: Bacteria, Fungi, Euglena not fitted.   2. *Five Kingdom*: R.H. Whittaker 1969. Basis = Cell structure, Thallus org, Mode of nutrition, Reproduction, Phylogenetic relationships. **Kingdom** **Cell Type** **Cell Wall** **Nutrition** **Body Org** **Examples** **Monera** Prokaryotic Peptidoglycan Auto/Hetero Unicellular Bacteria, Cyanobacteria **Protista** Eukaryotic Present in some Auto/Hetero Unicellular Amoeba, Paramecium, Euglena **Fungi** Eukaryotic Chitin Heterotrophic, Absorptiv...

*NEET 2027: Chapter 13 Biodiversity and Conservation - Detailed Short Notes* 🌍   _Class 12 Biology | NCERT Line-by-Line + PYQ  4Q Tak Aa Sakte Hain_   ### *1. Biodiversity - Concept & Levels*   - *Term*: Edward Wilson = Father of Biodiversity. Coined 'biodiversity'.   - *Definition*: Combined diversity at all levels of biological organization.   - *3 Levels with NEET Examples*: **Level** **Meaning** **NEET Example** **Genetic Diversity** Diversity within species due to genes 1. 50,000 rice varieties in India  2. 1,000 mango varieties  3. Rauwolfia vomitoria = Reserpine variation **Species Diversity** Diversity at species level Western Ghats amphibians > Eastern Ghats **Ecological Diversity** Diversity at ecosystem level India: Deserts, Rainforests, Mangroves, Coral reefs, Alpine meadows ### *2. Magnitude of Biodiversity*   - *Described Species*: 1.7-1.8 million. Robert May estimate: Global = 7 million spe...

NEET 2027 Syllabus Out | NMC Official Update NMC ne NEET UG 2027 ke liye updated syllabus jaari kar diya hai. Sabhi students abhi download karke padhai shuru karein. 📄 Syllabus PDF Download 📢 NTA Notice Board Last Updated: 9 Sept 2026 | Source: nta.ac.in

NEET Dropper here! Dropping complete Chapter 11 Notes for all NEET 2027 Aspirants 🔥  ### *NEET 2027: Chapter 11 Organisms and Populations - Expanded Notes*   _Class 12 Biology | NCERT Line-by-Line + PYQ + Diagrams_   ### *1. Organism & Its Environment*   - *Ecology*: Term by Ernst Haeckel. Study of interactions among organisms & with abiotic environment.   - *Hierarchy*: Organism → Population → Community → Ecosystem → Biome → Biosphere.   - *Major Abiotic Factors*:       1. *Temperature*: Most ecologically relevant. Affects enzyme kinetics. Avg temp on land: 0-50°C.       2. *Water*: Life originated in water. Desert = <10cm rainfall. Productivity of ocean limited by light.       3. *Light*: Photosynthesis, foraging, migration, reproduction. UV = harmful.       4. *Soil*: Weathering of rocks. pH, minerals, topography decide vegetation. ...

Hello friend. I am NEET dropper today I'm sharing complete notes*CHAPTER 7 - HUMAN HEALTH AND DISEASE SHORT NOTES* 🩺 *NCERT Class 12 ### *8.1 HEALTH* *Definition*: State of complete physical, mental, social well-being. *Not merely absence of disease*. ### *8.2 COMMON DISEASES IN HUMANS* **Disease** **Pathogen** **Vector/Mode** **Symptom** **Test** **Typhoid** *Salmonella typhi* Food/Water Sustained fever 39-40°C **Widal test** **Pneumonia** *Streptococcus pneumoniae*, *Haemophilus influenzae* Droplets Alveoli filled with fluid - **Malaria** *Plasmodium* **Female *Anopheles*** Chills + Fever every 3-4 days Blood smear **Amoebiasis** *Entamoeba histolytica* Food/Water Constipation, cramps Stool test **Ascariasis** *Ascaris* Food/Water Internal bleeding, anemia Stool test **Elephantiasis** *Wuchereria* **Female *Culex*** Lymph nodes me swelling Blood test **Ringworm** *Microsporum, Trichophyton* Soil, Towel Dry scaly lesions on skin - *Malaria Life Cycle Imp Points*:   1. *Spor...

*EVOLUTION CHAPTER 6 - FULL SHORT NOTES* 📚 *NEW NCERT*   *NEET 2027  ### *6.1 ORIGIN OF LIFE* 1. *Big Bang*: Universe 20 billion years ago 2. *Early Earth*: No atmosphere → Water vapor, CH₄, CO₂, NH₃  3. *Miller-Urey Exp 1953*: CH₄ + NH₃ + H₂ + H₂O + Electric spark → *Amino acids* bane = *Chemical evolution ka first proof* ### *6.2 EVOLUTION OF LIFE FORMS - THEORY* 1.*Darwin.   *Branching descent + Natural Selection* = _On the Origin of Species_ 1859 2. *Natural Selection* = Overproduction + Struggle for existence → *Survival of the fittest* - Herbert Spencer ka term ### *6.3 EVIDENCES FOR EVOLUTION* **Evidence** **Example** **Type** **Homologous organs** Human hand, Whale flipper, Bat wing **Divergent evolution** **Analogous organs** Bird wing vs Insect wing **Convergent evolution** **Fossils** **Archaeopteryx** = Reptile + Bird Missing link ### *6.4 ADAPTIVE RADIATION* = Ek ancestor → Alag-alag area → Nayi species 1. *Darwin Finches*: Seed eater, Insect ...

*Sexual Reproduction in Flowering Plants - Notes with Diagram* *1. Main Reproductive Organ: Flower*   The flower has male and female parts for sexual reproduction. *Diagram: L.S. of a Flower*         Stigma           | Anther ---|--- Style    |      | Filament  | Ovary --> contains Ovules    |      | Stamen    Carpel/Pistil (Male)    (Female)         Sepals         Petals       Receptacle          |        Pedicel *Label Description:*   - *Stamen*: Male part. Has *Anther* + *Filament*. Anther makes pollen grains. Pollen grain contains male gametes.   - *Carpel/Pistil*: Female part. Has *Stigma, Style, Ovary*. Ovary contains *Ovules*.   - *Ovule*: Has *Embryo sac* inside. Embryo sac = 7-celled, 8-nucleate structure. Contains egg ...

 Hello Friends, I am a  NEET Dropper. Today I'm sharing Complete Notes of Human Reproduction - Class 12 Biology Chapter 2. This is the most scoring chapter in NEET. **NEET PYQ Trend Last 5 Years:** 2022: 4 Questions 2023: 3 Questions   2024: 5 Questions 2025: 3 Questions 2026: 3 Questions Expected **Means 3-5 Questions fixed every year from this chapter.** **NEET 2027 One Shot Topics:** **1. Male Reproductive System** - **Testes**: Produces Sperms + Testosterone hormone - **NCERT Line**: "Testes are situated outside abdominal cavity within scrotum because sperm formation requires 2-2.5°C lower temperature than body" - **Spermatogenesis**: Spermatogonia → Primary spermatocyte → Secondary spermatocyte → Spermatid → Spermatozoa - **Semen**: Sperms + Secretions of Seminal vesicle + Prostate + Bulbourethral gland **2. Female Reproductive System** - **Ovary**: Produces Ovum + Estrogen + Progesterone  - **Oogenesis**: Oogonia → Primary oocyte → Secondary oocyte → Ovum ...