Biology teacher

Factors Affecting Enzyme Activity Class 11 Biology Notes | CBSE & NEET Factors Affecting Enzyme Activity ( NEET Note- Explanation)  Factors Affecting Enzyme Activity showing the effects of temperature, pH, substrate concentration, Vmax, and competitive inhibition for CBSE Class 11 and NEET Biology. -Dr.Sanjaykumar Pawar  What are Factors Affecting Enzyme Activity? Definition: Factors affecting enzyme activity are the conditions that can increase or decrease the speed of enzyme-catalysed reactions. Main Factors Temperature 🌡️ pH Substrate Concentration Inhibitors (Specific Chemicals) NEET Tip: Remember these four factors as "TPSI" T = Temperature P = pH S = Substrate concentration I = Inhibitors Line-by-Line Explanation Line 1 "The activity of an enzyme can be affected by a change in the conditions which can alter the tertiary structure of the protein." Easy Meaning Enzymes are proteins. Proteins have a special 3D (tertiary) struc...

 Nature of Enzyme Action Class 11 Biology Notes PDF | CBSE & NEET Nature of Enzyme Action (Easy NEET Notes) Nature of Enzyme Action: Step-by-step process showing enzyme-substrate complex formation, catalysis, and product release for CBSE Class 11 and NEET Biology. -Dr.Sanjaykumar Pawar  What is an Enzyme? Enzyme (E) = A biological catalyst that speeds up chemical reactions. Substrate (S) = The substance on which the enzyme acts. Product (P) = The final substance formed after the reaction. Basic Enzyme Reaction E + S → ES → EP → E + P Meaning of each step: E + S = Enzyme meets the substrate. ES = Enzyme-Substrate Complex is formed. EP = Enzyme-Product Complex is formed after the reaction. E + P = Product is released and the enzyme remains unchanged. NEET Point: The enzyme is not consumed during the reaction and can be used again. Line-by-Line Explanation Line 1: "Each enzyme (E) has a substrate (S) binding site in its molecule." Easy Meaning...

Significance of Mitosis & Meiosis | Class 11 Notes, MCQs  Comparison of Mitosis and Meiosis showing stages of cell division and chromosome behavior in Class 11 Biology. - Dr.Sanjaykumar Pawar  🌿 Significance of Mitosis (Equational Division) Mitosis is a type of cell division where one cell forms two identical daughter cells . It is also called equational division because chromosome number remains the same. Mostly occurs in diploid (2n) cells . In some lower plants and social insects, even haploid cells can undergo mitosis . 📌 Main Importance of Mitosis Mitosis produces genetically identical daughter cells (same DNA as parent cell). It is responsible for growth of multicellular organisms . As cells grow, the nucleus-cytoplasm ratio gets disturbed . So, mitosis helps to restore proper nucleus–cytoplasm balance . 🌱 Role in Growth and Repair Mitosis helps in increase in number of cells → growth of body . It is essential for repair and replacement of wo...

  19.3 Hormones of Heart, Kidney and Gastrointestinal Tract Easy NEET Notes (Line-by-Line Explanation) Introduction Original Idea: Some tissues other than endocrine glands also secrete hormones. Easy Explanation: We usually study hormones secreted by endocrine glands like pituitary, thyroid, adrenal etc. But some other organs and tissues also produce hormones. These hormones help in regulating important body functions. Hormones of Heart Atrial Natriuretic Factor (ANF) Line: “The atrial wall of our heart secretes a peptide hormone called atrial natriuretic factor (ANF).” Explanation: The atria are the upper chambers of the heart. Their walls produce a hormone called ANF . ANF is a peptide hormone (made of amino acids). Function of ANF Line: “ANF decreases blood pressure.” Explanation: ANF helps to lower high blood pressure. It maintains normal blood circulation. Line: “When blood pressure is increased, ANF is secreted which causes dilation of blo...