Biology teacher

-  Dr.Sanjaykumar Pawar  NEET Biology Practice – Diversity in Living World with Classification, Taxonomy & MCQ Learning Internal Links  /neet-biology-notes-diversity-in-living-world /taxonomy-and-systematics-class-11-notes /binomial-nomenclature-rules-linnaeus /neet-biology-mcqs-practice-tests /assertion-reason-questions-biology /class-11-biology-chapter-1-notes /pyq-neet-biology-chapterwise NEET Practice - Diversity in Living World NEET Practice Questions Diversity in the Living World 1. Direct MCQs Q1. Biodiversity refers to? A. Ecosystems only B. Variety of living organisms C. Animals only D. Plants only Answer: B Q2. Basic unit of classification? A. Kingdom B. Genus C. Species D. Family Answer: C Q3. Taxonomy includes? A. Identification only B. Classification only C. Nomenclature only D. All three Answer: D Q4. Scientific names are? A. Hindi B. Greek C. Latin D. English Answer: C Q5. Binomial nomenclature pr...

  Diagram showing conduction of nerve impulse through an axon by movement of sodium and potassium ions. NEET-Level MCQs: Neural Control & Coordination  By- Dr.Sanjaykumar pawar Topic: Impulse Conduction Through Axon (Hard Level) MCQ 1 During depolarisation of an axonal membrane: A. K⁺ ions rapidly enter the axoplasm B. Na⁺ ions rapidly diffuse into the axoplasm C. Cl⁻ ions move outside the membrane D. Na⁺ ions are actively transported outside Answer: ✅ B. Na⁺ ions rapidly diffuse into the axoplasm Explanation: Depolarisation occurs due to opening of voltage-gated Na⁺ channels causing rapid Na⁺ influx. MCQ 2 The resting membrane potential in a neuron is mainly due to: A. Equal permeability to Na⁺ and K⁺ B. Higher permeability to Na⁺ than K⁺ C. Differential distribution of ions across membrane D. Active transport of Cl⁻ ions only Answer: ✅ C. Differential distribution of ions across membrane Explanation: Unequal distribution of Na⁺ and K⁺ ions creates ...

  NEET Biology Taxonomical Aids Chart, Tricks & Memory Hacks Taxonomical Aids simplified: Herbarium, Botanical Garden, Museum, Zoological Park & classification tools in one NEET revision chart. - Dr. Sanjay Kumar Pawar 🌳 TAXONOMICAL AIDS – ONE PAGE REVISION CHART Taxonomical Aid क्या है? Specimen Type Main Purpose NEET Trick Herbarium सूखे, दबाए हुए पौधों का संग्रह Dead Plant Identification & Reference Plant = Press & Paste Botanical Garden जीवित पौधों का संग्रह Living Plant Identification & Conservation Garden = Living Plants Museum संरक्षित पौधे एवं जानवर Dead Specimens Study & Reference Museum = Preserved Bodies Zoological Park जीवित जंगली जानवर Living Animals Behaviour Study Zoo = Living Animals Key पहचान करने का उपकरण Information Tool Identification Key = Lock खोलने वाली पहचान Flora किसी क्षेत्र के पौधों की सूची Plant Record Plant Information Flora = Flowers/Plants Manual Identification Handbook ...

  Easy NEET Notes – Biomolecules Types   CBSE Class 11 Biomolecules: Amino acids, lipids, and nucleic acids explained with clear diagrams for easy exam preparation. - Dr.Sanjaykumar Pawar  1. Proteinaceous Amino Acids What is an Amino Acid? Amino acids are the building blocks of proteins . Every amino acid contains: Amino group (–NH₂) Carboxyl group (–COOH) Hydrogen atom (H) R group (Side chain) → makes each amino acid different. R Group (Side Chain) The R group decides the type and properties of an amino acid. Examples: Glycine (Gly) → R = Hydrogen (H) → Simplest amino acid. Alanine (Ala) → R = Methyl group (–CH₃). Serine (Ser) → R = Hydroxymethyl group (–CH₂OH). NEET Tip: R group is responsible for the unique nature of every amino acid. Types of Amino Acids (Based on Amino & Carboxyl Groups) 1. Acidic Amino Acids Have more carboxyl (–COOH) groups than amino groups. Carry a negative charge. Example: Glutamic acid. Easy T...

 Endomembrane System NEET Notes: ER, Golgi Apparatus & Functions (Class 11) Endomembrane System  Endomembrane System in a Eukaryotic Cell: ER and Golgi working together for protein processing and transport. - Dr.Sanjaykumar pawar Endomembrane System Definition The endomembrane system is a group of cell organelles that work together in a coordinated way. These organelles help in the synthesis, modification, packaging, transport, and digestion of materials inside the cell. Components of Endomembrane System Endoplasmic Reticulum (ER) Golgi Apparatus (Golgi Complex) Lysosomes Vacuoles Important NEET Point These organelles are considered together because their functions are interconnected. Mitochondria, chloroplasts, and peroxisomes are NOT part of the endomembrane system because their functions are independent and not coordinated with the above organelles. 1. Endoplasmic Reticulum (ER) Discovery and Structure Under an electron microscope, ER appears as...

Diagrammatic representation of the pituitary gland showing anterior pituitary, posterior pituitary, hypothalamus, and hormone secretion. Pituitary Gland (Master Gland) – Easy NEET Notes  - Dr.Sanjaykumar Pawar Introduction The pituitary gland is a small endocrine gland present at the base of the brain. It is called the “Master Gland” because it controls many other endocrine glands. It lies in a bony cavity called Sella Turcica of the skull. The pituitary gland is connected to the hypothalamus by a stalk. Structure of Pituitary Gland The pituitary gland is divided into two main parts: 1. Adenohypophysis (Anterior Pituitary) It is the front part of the pituitary gland. It develops from epithelial tissue. It has two regions: Pars distalis Pars intermedia A. Pars Distalis (Main anterior pituitary) It secretes six important hormones: Hormone Full Form Main Function GH Growth Hormone Body growth PRL Prolactin Milk production TSH Thyroid S...