NEET MEDICAL NCERT 👩‍⚕️👨‍⚕️ Future doctors life custodian 🌹

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🌟 Biological Classification for NEET 🌟 🌱 Eubacteria (True Bacteria) [Meme: Picture of a bacteria with sunglasses and a caption that says, "Bacteria ke swag wale toh hum hi hai!" 💪😎] 💡 Characteristics: - Rigid Cell Wall: Bacteria ka solid "bodyguard"! 💪 - Flagellum (if motile): Bacteria ka "swimming champion"! 🏊‍♂️ [Assertion-Reason] - Assertion: Eubacteria have a rigid cell wall. - Reason: Flagellum is present in motile eubacteria. 🌈 Cyanobacteria (Blue-Green Algae) [Meme: Algae dancing with sunglasses and the caption, "Algae toh party shuru hui hai!" 🎉🕺] 🌿 Features: - Chlorophyll a: Algae ka "green rangat ka raaz"! 🌿💚 - Photosynthetic Autotrophs: Algae with their "solar-powered superpowers"! ☀️✨ [MCQ] - MCQ: What is the primary pigment in cyanobacteria? (a) Chlorophyll a (b) Chlorophyll b (c) Carotenoids (d) Phycobilins Answer: (a) Chlorophyll a 🌊 Forms: - Unicellular: Algae ke "single players"! 🏊‍♀️ - Colonial: Algae ka "teamwork ka tashan"! 🤝🌿 - Filamentous: Algae ke "noodles jaisi masti"! 🍜🌿 [MCQ] - MCQ: Which form of cyanobacteria forms long filamentous chains? (a) Unicellular (b) Colonial (c) Filamentous (d) All of the above Answer: (c) Filamentous 🌍 Habitats: - Freshwater: Algae ki "jheel wali masti"! 💦🌊 - Marine: Algae ka "oceanic wonderland"! 🌊🌴 - Terrestrial: Algae ke "land-loving adventures"! 🌳🌞 [MCQ] - MCQ: In which habitat are cyanobacteria commonly found? (a) Forests (b) Mountains (c) Freshwater (d) Deserts Answer: (c) Freshwater 🌱 Specialization: - Heterocysts (Fix atmospheric nitrogen): Cyanobacteria ke "nitrogen-fixing ninjas"! 🌿🥷 [Assertion-Reason] - Assertion: Heterocysts in cyanobacteria specialize in fixing atmospheric nitrogen. - Reason: Nitrogen fixation is essential for the growth and survival of cyanobacteria. 🔥 Chemosynthetic Autotrophic Bacteria [Meme: Bacteria celebrating with chemistry flasks and the caption, "Chemistry wale bacteria, masti ki class shuru!"] 🍄 Heterotrophic Bacteria [Meme: Bacteria enjoying a feast with a caption that says, "Khana toh bacteria ki life hai!"] 🧀 Impacts on Human Affairs: - Making curd, antibiotics: Bacteria's "culinary magic"! 🧀💊 - Nitrogen fixation in legume roots: Bacteria's "legume lover" avatar! 🌱❤️ [Statement-Based] - Statement-Based Question: Explain the importance of bacteria in curd production. 🦠 Pathogens: - Diseases in humans, crops, animals, pets: Bacteria's "troublemakers"! 😷🌾🐾 [Assertion-Reason] - Assertion: Bacteria can cause diseases in humans, crops, animals, and pets. - Reason: Pathogenic bacteria have the ability to invade and harm host organisms. 🚀 Reproduction: [Meme: Bacteria dividing with a caption that says, "Ek se do... ya phir aur bhi zyada!"] 🌌 Mycoplasma [Meme: Mycoplasma wearing sunglasses and a leather jacket, labeled as "Microbes ka ultimate rockstar."] 🟢 Summary: - Bacteria are diverse and resilient organisms found everywhere. - Cyanobacteria play crucial roles in ecosystems and have unique features. - Bacteria have significant impacts on human affairs, both positive and negative. - Understanding bacterial reproduction and pathogenicity is essential. - Mycoplasma is a unique group of bacteria with distinct characteristics.

𝑭𝒍𝒂𝒔𝒉𝒄𝒂𝒓𝒅 1: 𝑻𝒐𝒑𝒊𝒄: 𝑪𝒆𝒍𝒍 𝑺𝒕𝒓𝒖𝒄𝒕𝒖𝒓𝒆 𝒂𝒏𝒅 𝑭𝒖𝒏𝒄𝒕𝒊𝒐𝒏 𝑻𝒉𝒆𝒐𝒓𝒚: 𝑻𝒉𝒆 𝒆𝒏𝒅𝒐𝒑𝒍𝒂𝒔𝒎𝒊𝒄 𝒓𝒆𝒕𝒊𝒄𝒖𝒍𝒖𝒎 (𝑬𝑹) 𝒊𝒔 𝒓𝒆𝒔𝒑𝒐𝒏𝒔𝒊𝒃𝒍𝒆 𝒇𝒐𝒓 𝒕𝒉𝒆 𝒔𝒚𝒏𝒕𝒉𝒆𝒔𝒊𝒔 𝒐𝒇 𝒑𝒓𝒐𝒕𝒆𝒊𝒏𝒔 𝒊𝒏 𝒂 𝒄𝒆𝒍𝒍. 𝑰𝒕 𝒊𝒔 𝒂 𝒏𝒆𝒕𝒘𝒐𝒓𝒌 𝒐𝒇 𝒎𝒆𝒎𝒃𝒓𝒂𝒏𝒆-𝒃𝒐𝒖𝒏𝒅 𝒔𝒂𝒄𝒔 𝒂𝒏𝒅 𝒕𝒖𝒃𝒖𝒍𝒆𝒔 𝒍𝒐𝒄𝒂𝒕𝒆𝒅 𝒊𝒏 𝒕𝒉𝒆 𝒄𝒚𝒕𝒐𝒑𝒍𝒂𝒔𝒎. 𝑻𝒉𝒆𝒓𝒆 𝒂𝒓𝒆 𝒕𝒘𝒐 𝒕𝒚𝒑𝒆𝒔 𝒐𝒇 𝑬𝑹: 𝒓𝒐𝒖𝒈𝒉 𝒆𝒏𝒅𝒐𝒑𝒍𝒂𝒔𝒎𝒊𝒄 𝒓𝒆𝒕𝒊𝒄𝒖𝒍𝒖𝒎 (𝑹𝑬𝑹) 𝒂𝒏𝒅 𝒔𝒎𝒐𝒐𝒕𝒉 𝒆𝒏𝒅𝒐𝒑𝒍𝒂𝒔𝒎𝒊𝒄 𝒓𝒆𝒕𝒊𝒄𝒖𝒍𝒖𝒎 (𝑺𝑬𝑹). 𝑹𝑬𝑹 𝒊𝒔 𝒔𝒕𝒖𝒅𝒅𝒆𝒅 𝒘𝒊𝒕𝒉 𝒓𝒊𝒃𝒐𝒔𝒐𝒎𝒆𝒔 𝒂𝒏𝒅 𝒊𝒔 𝒊𝒏𝒗𝒐𝒍𝒗𝒆𝒅 𝒊𝒏 𝒑𝒓𝒐𝒕𝒆𝒊𝒏 𝒔𝒚𝒏𝒕𝒉𝒆𝒔𝒊𝒔, 𝒘𝒉𝒊𝒍𝒆 𝑺𝑬𝑹 𝒊𝒔 𝒊𝒏𝒗𝒐𝒍𝒗𝒆𝒅 𝒊𝒏 𝒍𝒊𝒑𝒊𝒅 𝒎𝒆𝒕𝒂𝒃𝒐𝒍𝒊𝒔𝒎, 𝒅𝒆𝒕𝒐𝒙𝒊𝒇𝒊𝒄𝒂𝒕𝒊𝒐𝒏, 𝒂𝒏𝒅 𝒄𝒂𝒍𝒄𝒊𝒖𝒎 𝒔𝒕𝒐𝒓𝒂𝒈𝒆. 𝑷𝒀𝑸 .. 𝑸: 𝑾𝒉𝒊𝒄𝒉 𝒐𝒓𝒈𝒂𝒏𝒆𝒍𝒍𝒆 𝒊𝒔 𝒓𝒆𝒔𝒑𝒐𝒏𝒔𝒊𝒃𝒍𝒆 𝒇𝒐𝒓 𝒕𝒉𝒆 𝒔𝒚𝒏𝒕𝒉𝒆𝒔𝒊𝒔 𝒐𝒇 𝒑𝒓𝒐𝒕𝒆𝒊𝒏𝒔 𝒊𝒏 𝒂 𝒄𝒆𝒍𝒍❓ 𝒂) 𝑵𝒖𝒄𝒍𝒆𝒖𝒔 𝒃) 𝑴𝒊𝒕𝒐𝒄𝒉𝒐𝒏𝒅𝒓𝒊𝒂 𝒄) 𝑬𝒏𝒅𝒐𝒑𝒍𝒂𝒔𝒎𝒊𝒄 𝒓𝒆𝒕𝒊𝒄𝒖𝒍𝒖𝒎 𝒅) 𝑮𝒐𝒍𝒈𝒊 𝒂𝒑𝒑𝒂𝒓𝒂𝒕𝒖𝒔 Ans.. 3 𝑷𝒀𝑸 .. 𝑸: 𝑾𝒉𝒊𝒄𝒉 𝒕𝒚𝒑𝒆 𝒐𝒇 𝒆𝒏𝒅𝒐𝒑𝒍𝒂𝒔𝒎𝒊𝒄 𝒓𝒆𝒕𝒊𝒄𝒖𝒍𝒖𝒎 𝒊𝒔 𝒊𝒏𝒗𝒐𝒍𝒗𝒆𝒅 𝒊𝒏 𝒑𝒓𝒐𝒕𝒆𝒊𝒏 𝒔𝒚𝒏𝒕𝒉𝒆𝒔𝒊𝒔❓ 𝒂) 𝑹𝒐𝒖𝒈𝒉 𝒆𝒏𝒅𝒐𝒑𝒍𝒂𝒔𝒎𝒊𝒄 𝒓𝒆𝒕𝒊𝒄𝒖𝒍𝒖𝒎 (𝑹𝑬𝑹) 𝒃) 𝑺𝒎𝒐𝒐𝒕𝒉 𝒆𝒏𝒅𝒐𝒑𝒍𝒂𝒔𝒎𝒊𝒄 𝒓𝒆𝒕𝒊𝒄𝒖𝒍𝒖𝒎 (𝑺𝑬𝑹) 𝒄) 𝑵𝒖𝒄𝒍𝒆𝒖𝒔 𝒅) 𝑮𝒐𝒍𝒈𝒊 𝒂𝒑𝒑𝒂𝒓𝒂𝒕𝒖𝒔 Ans.. (a)

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Three of the following statements about enzymes are correct and one is wrong. Which one is wrong? [ AIPMT] (1) Enzymes are denatured at high temperatures but in certain exceptional organisms they are effective even at temperatures 80°-90°C (2) Enzymes are highly specific (3) Most enzymes are proteins but some are lipids (4) Enzymes require optimum pH for maximal activity