NEET Biology Notes PDF 2027 | Class 11 & 12

Hello friend 👋 NEET Biology Chapter 22: Chemical Coordination and Integration Free Detailed Notes 📚 Pituitary + Thyroid + Adrenal + Pancreas + Hormones PDF + Diagrams + MCQs Want it? DM me ❤️  ### *1. Endocrine System* *Endocrine Glands*: Ductless glands. Secrete *hormones* directly into blood   *Exocrine Glands*: Have ducts. Ex: Salivary, Sweat, Digestive glands   *Mixed Glands*: Both endocrine + exocrine. Ex: Pancreas, Gonads *Hormones*: Chemical messengers. Produced in trace amounts. Regulate metabolism ### *2. Human Endocrine System - Major Glands* #### *A. Pituitary Gland / Hypophysis* *Location*: Below hypothalamus. Attached by stalk   *Divided into 3 parts:* *1. Anterior Pituitary / Adenohypophysis* - *Growth Hormone GH / Somatotropin*: Growth of bones & tissues. Excess → Gigantism. Deficiency → Dwarfism - *Prolactin PRL*: Milk synthesis in mammary glands - *TSH*: Stimulates thyroid gland - *ACTH*: Stimulates adrenal cortex - *Gonadotropin...

Hello friend 👋 NEET Biology Chapter 21: Neural Control and Coordination Free Detailed Notes 📚 Brain + Neuron + Reflex + Disorders PDF + MCQs ### *Chapter 21: Neural Control and Coordination* ### *1. Neural System in Humans* *Functions*: Point-to-point coordination, Fast, Voluntary + Involuntary actions *2 Parts:* 1. *Central Neural System CNS*: Brain + Spinal Cord 2. *Peripheral Neural System PNS*: All nerves of body *PNS is further divided:* - *Somatic Neural System SNS*: Voluntary. Transmits impulses from CNS to skeletal muscles - *Autonomic Neural System ANS*: Involuntary. Controls visceral organs       - *Sympathetic*: Fight & Flight      - *Parasympathetic*: Rest & Digest - *Visceral Neural System*: Part of ANS. Inner organs ### *2. Neuron - Structural & Functional Unit of Neural System* *Parts of Neuron:* 1. *Cell body / Cyton*: Contains nucleus, Nissl's granules. Protein synthesis 2. *Dendrites*: Short branches. Receive impulses 3....

Hello friend 👋 Free NEET Notes for Chapter 20: Locomotion and Movement 🔥 ✅ 3 Types of Muscles ✅ Sliding Filament Theory  ✅ 206 Bones + Types of Joints ✅ NEET High Yield Points + Disorders Share with your NEET friends ❤️ ### *1. Types of Movement in Animals* 1. *Amoeboid Movement*: By pseudopodia. Ex: Amoeba, Macrophages, WBCs. Uses actin microfilaments 2. *Ciliary Movement*: By cilia. Ex: Paramecium, lining of trachea, oviduct 3. *Flagellar Movement*: By flagella. Ex: Sperm, Euglena, Chlamydomonas 4. *Muscular Movement*: By skeletal muscles. Most advanced. Helps in locomotion ### *2. Human Muscular System - 3 Types* Feature Skeletal Muscle Smooth Muscle Cardiac Muscle **Location** Attached to bones Hollow organs, blood vessels Heart wall only **Control** Voluntary Involuntary Involuntary **Striations** Present Absent Present **Shape** Cylindrical, unbranched Spindle shaped Branched **Nuclei** Multinucleated, peripheral Uninucleated, central Uninucleated, central **Intercalated di...

*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 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...

Hello friends, Class 11 Biology Chapter 1 The Living World ke complete notes, definitions aur NEET 2027 ke important MCQ yahan milenge.NEET 2027: Chapter 1 The Living World - Short Notes* 🧬   _Class 11 Biology | NCERT + PYQ   ### *1. What is Living?*   - *Life*: Cannot be defined by single property. Living organisms show defining features.   - *Defining Properties of Living Organisms* `NEET Gold` **Property** **Living** **Non-Living** **Exception** **Growth** Intrinsic, ↑ in mass & number Extrinsic, material added on surface Mountains, sand mounds grow **Reproduction** Produces progeny No reproduction Mules, sterile worker bees, infertile humans can't reproduce **Metabolism** Sum of all chemical reactions Absent Cell-free systems show metabolism **Cellular Organization** Made of cells No cellular org - **Consciousness** Respond to stimuli No response Plants respond to light, water *NEET Trap*: Growth, reproduction are NOT defining properties....