NEET JEE SHORT NOTES

Uses of Bacteria:- Bacteria is useful in the following ways:- (i) Bacteria are natural scavangers. They obtain their nutrition by decomposing dead bodies, dead plants and animal excreta. (ii) These are used in the fermentation process for vinegar manufacturing, yogurt making, etc. (iii) Some bacteria help in retting of jute and coconut plant fibres. The separated fibres are used in making ropes or gunny bags. (iv) The genus Streptomyces has many species used to produce different antibiotics. Some important antibiotics using various bacteria are neomycin, … omycetin, streptomycin, gramicidin, bacitracin. (v) Bacteria play important role in different steps of nitrogen cycle. Some important bacteria in nitrogen cycle, e.g, Clostridium, Azotobacter (soil bacteria), Rhizobium leguminosarum, Bacillus radicicola (in nodules), Nitrosomonas, Nitrosobacter, Pseudomonas etc. Harmful Effects of Bacteria:- ⚜Bacteria is harmful in the following ways:- (i) Some saprophytic bacteria like Lactobacillus spoil milk and milk products. (ii) Food poisoning occurs due to the production of toxins by some bacteria like Clostridium botulinum. ⚜They cause botulism, which can kill humans by respiratory paralysis. (iii) Bacteria are responsible for various plant diseases like citrus canker in lemon leaves and fruits, soft rot in carrot plants, blight disease in rice plants, crown gall disease in apple trees and rose plants. (iv) In humans, bacteria cause diseases like cholera (Vibrio cholerae), gastric ulcer (Heliobacter pylori), tuberculosis (Mycobacterium tuberculosis), sexually transmitted diseases like gonorrhoea(Neisseriagonorfhoeae), syphilis (Treponema pallidum), etc. (v) In animals like horse, cattle and sheep, anthrax disease is caused by Anthracis.

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Z scheme of light reaction

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🌟Very Important For NEET 🌟

💥Very Important For NEET💥: 🌟 Morphine - Papaver somniferum 🌟Nicotine - Nicotiana tobacum 🌟Marijuana - Cannabis sativa 🌟Coca alkaloids - Erythroxylum coca

☆Chemical Compounds Names - ★ Acetic acid formula ➷ CH3COOH ★ Aluminium hydroxide formula ➷ Al(OH)3 ★ Acetate formula ➷ CH3COO- ★ Acetone formula ➷ C3H6O ★ Aluminium acetate formula ➷ Al2O(C2H3O2)4 ★ Aluminum bromide formula ➷ AlBr3 ★ Aluminum carbonate formula ➷ Al2(CO3)3 ★ Aluminum chloride formula ➷ AlCl3 ★ Aluminum fluoride formula ➷ AlF3 ★ Aluminum formula ➷ Al ★ Aluminum iodide formula ➷ AlI3 ★ Aluminum oxide formula ➷ Al2O3 ★ Aluminum phosphate formula ➷ AlPO4 ★ Amino acid formula ➷ R(NH2)-COOH ★ Ammonia formula ➷ NH4 ★ Ammonium dichromate formula ➷ Cr2H8N2O7

🔰 High Weightage chapters for NEET ⦿ CHEMISTRY 1. s/p/d/f Blocks : 6 - 8 Q. 2. Chemical Bonding : 4 - 5 Q. 3. Oxygen cont. Group : 3 - 4 Q. 4. Hydrocarbon & Halogen derivatives : 3 - 4 Q. 5. Complex Compound: 3 - 4 Q. 6. Electrochemistry: 2 - 3 Q. 7. Reaction Mechanism: 2 - 3 Q. 8. Equilibrium,Acid base: 3 - 4 Q. 9. Thermodynamics : 1 - 2 Q. 10. Chemical Kinetics : 1 - 3 Q. 11. Atomic Structure : 1 - 2 Q. 12. Solution : 2 - 3 Q. 13. Biomolecules : 1 - 2 Q. 14. Mole concept : 1 - 2 Q. 15. Solid State: 1 - 2 Q. 16. Nitrogen compound: 1 - 2 Q. 17. Polymer: 1 - 2 Q. 18. Surface Chemistry: 1 - 2 Q. 19. States of matter: 1 - 2 Q. ⦿ PHYSICS 1. Modern Physics: 3 - 4 Que. 2. Thermal Physics: 4 - 5 Que. 3. Magnetism: 2 - 3 Que. 4. Current Electricity: 3- 4 Que. 5. Semiconductor: 2 - 3 Que. 6. Ray optics: 3 - 4 Que. 7. Rotational motion: 2 - 3 Que. 8. Gravitation: 2 - 3 Que. 9. Kinematics: 2 - 3 Que. 10. Fluid mechanics: 2 - 3 Que. 11. Wave motion & doppler: 1 - 2 Que. 12. Alternating current: 1 - 2 Que. 13. Wave Optics: 2 - 3 Que. ⦿ BIOLOGY 1. Genetics & Biotechnology: 17 - 21 Que. 2. Ecology: 8 - 12 Que. 3. Plant Diversity: 6 - 8 Que. 4. Plant Physiology: 7 - 10 Que. 5. Cell, Cell division: 5 - 7 Que. 6. Animal embryology & Reproductive system: 4 - 6 Que. 7. Reproduction in Plant: 4 - 7 Que. 8. Plant Morphology: 3 - 4 Que. 9. Human health & disease: 3 - 5 Que. 10. Animal diversity: 2 - 4 Que. 11. Evolution: 3 - 4 Que. 12. Plant Anatomy: 3 - 4 Que. 13. Endocrine: 2-3 Que. 14. Digestive System: 2 Que. 15. Respiratory system: 2 Que

Important Points 🌟 - By @Tanishkk 🌟 OXYACIDS OF HALOGEN 🌟 1. Hypochlorous acid- HClO 2. Chlorous acid - HClO2 3. Chloric acid - HClO3 4. Perchloric acid - HClO4 👉 Acidic Strength HClO < HClO2 < HClO3 < HClO4 👉 Oxidising Nature HClO > HClO2 > HClO3 > HClO4

🔥ANSWER 🔥

⚗️Short Trick of Amphoteric Metals & Oxides ⚡Trick to learn Amphoteric Oxides. Zanabe Aali Ne Bekar Crke Gaya Punjabi Song! 'जनाबे आली ने बेकार करके गाया पंजाबी सॉन्ग' ZnO ➾ Zanabe Al2O3 ➾ Aali Ne BeO ➾ Bekar Cr2O3 ➾ Crke Ga2O3 ➾ Gaya PbO ➾ Punjabi SnO ➾ Song ⚡Trick to learn Amphoteric Metals. Sb Zan Ki Aas Suno Prebhu Allah! 'सब जन की आस सुनो प्रभु अल्लाह' Sn ➾ Sb Zn ➾ Zan As ➾ Aas Sn ➾ Suno Pb ➾ Prebhu Al ➾ Allah 👀Shared By - PG ❤️👍

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