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@Anatomy_of_flowering_plants PART 1 PART 2 PART 3 PART 4 PART 5 #Biology #notes #Revision_notes #Biology_class_11_12_k {Share it👀} Keep supporting🥲 ╔══════════════════╗ ❤️ @biology_class_11_12 ❤️ ╚══════════════════╝ 🦋

Topic :- 🍀Anatomy of Flowering Plants🍀 👀→ Click here!! → @anatomy_of_flowering_plants #Biology #notes #Revision_notes #Biology_class_11_12_k {Share it👀} Keep supporting🥲 ╔══════════════════╗ ❤️ @biology_class_11_12 ❤️ ╚══════════════════╝ 🦋⊙﹏⊙🦋

👀Topic :- 💥LIVER💥 👉Liver is the largest gland of the body 👉Weighing about 1.2 to 1.5 kg in an adult human. 👉 It is situated in the abdominal cavity, just below the diaphragm and has two lobes. 👉Falciform ligament connects liver with diaphragm. 👉The hepatic lobules are the structural and functional units of liver. 👉Glisson's capsule is the characterstic feature of mammalian liver. 👉Mammalian liver also contains phagocytic cells called kupffer cells. 👉Gall bladder is present in right lobe proper. 👉Gallbladder is absent in rat, birds, whale and horse. 👉Liver is 2-lobed in man, 3-lobed in frog and 5-lobed in rabbit. 👉Anticoagulant heparin is manufactured in liver. 👉 Plasma proteins (albumins, globulins and fibrinogens) are formed in liver. 👉 Liver synthesises cholesterol. #Revision #Biology #short_note #Biology_class_11_12_k {Share it👀} Keep supporting🥲 ╔══════════════════╗ ❤️ @biology_class_11_12 ❤️ ╚══════════════════╝

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🥲🩺 𝙁𝙖𝙘𝙩𝙨 𝙖𝙗𝙤𝙪𝙩 𝘽𝙡𝙤𝙤𝙙 🩸💉 🩸1. More than 4.5 𝙢𝙞𝙡𝙡𝙞𝙤𝙣 𝙥𝙖𝙩𝙞𝙚𝙣𝙩𝙨 need blood transfusions eoach year in the U.S. and Canada. 🩸2. 43,000 pints: amount of donated blood used each day in the 𝙐.𝙎 and 𝘾𝙖𝙣𝙖𝙙𝙖. 🩸3. Someone needs blood every two seconds. 🩸4. Only 37 percent of the U.S. population is eligible to donate blood – less than 10 percent do annually**. 🩸5. About 1 in 7 people entering a 𝙝𝙤𝙨𝙥𝙞𝙩𝙖𝙡 need blood. 🩸6. One pint of blood can save up to 𝙩𝙝𝙧𝙚𝙚 lives. 🩸7. 𝙃𝙚𝙖𝙡𝙩𝙝𝙮 𝙖𝙙𝙪𝙡𝙩𝙨 who are at least 17 years old, and at least 110 pounds may donate about a pint of blood—the most common form of donation—every 56 days, or every two months. 𝙁𝙚𝙢𝙖𝙡𝙚𝙨 receive 53 percent of blood transfusions; males receive 47 percent. 🩸8. 94 percent of blood donors are registered voters. 🩸9. Four main 𝙧𝙚𝙙 𝙗𝙡𝙤𝙤𝙙 𝙘𝙚𝙡𝙡 𝙩𝙮𝙥𝙚𝙨: A, B, AB and O. Each can be 𝙥𝙤𝙨𝙞𝙩𝙞𝙫𝙚 or 𝙣𝙚𝙜𝙖𝙩𝙞𝙫𝙚 for the Rh factor. AB is the 𝙪𝙣𝙞𝙫𝙚𝙧𝙨𝙖𝙡 𝙧𝙚𝙘𝙞𝙥𝙞𝙚𝙣𝙩; O negative is the universal 𝙙𝙤𝙣𝙤𝙧 of red blood cells. 🩸10. 𝘿𝙧. 𝙆𝙖𝙧𝙡 𝙇𝙖𝙣𝙙𝙨𝙩𝙚𝙞𝙣𝙚𝙧 first identified the major human blood groups – A, B, AB and O – in 1901. 🩸11. One unit of blood can be separated into several 𝙘𝙤𝙢𝙥𝙤𝙣𝙚𝙣𝙩𝙨: red blood cells, plasma, platelets and cryoprecipitate. 🩸12. Red blood cells carry 𝙤𝙭𝙮𝙜𝙚𝙣 to the body’s 𝙤𝙧𝙜𝙖𝙣𝙨 and𝙩𝙞𝙨𝙨𝙪𝙚s. 🩸13. Red blood cells live about 120 𝙙𝙖𝙮𝙨 in the circulatory system. 🩸14. Platelets promote 𝙗𝙡𝙤𝙤𝙙 𝙘𝙡𝙤𝙩𝙩𝙞𝙣𝙜 and give those with leukemia and other cancers a chance to live. 🩸15. 𝙋𝙡𝙖𝙨𝙢𝙖 is a pale yellow mixture of water, proteins and salts. 🩸16. 𝙋𝙡𝙖𝙨𝙢𝙖, which is 90 percent water, makes up 55 percent of blood volume. 🩸17. Healthy 𝙗𝙤𝙣𝙚 𝙢𝙖𝙧𝙧𝙤𝙬 makes a constant supply of red cells, plasma and platelets. 🩸18. Blood or plasma that comes from people who have been paid for it cannot be used to 𝙝𝙪𝙢𝙖𝙣 𝙩𝙧𝙖𝙣𝙨𝙛𝙪𝙨𝙞𝙤𝙣. 🩸19. 𝙂𝙧𝙖𝙣𝙪𝙡𝙤𝙘𝙮𝙩𝙚𝙨, a type of white blood cell, roll along blood vessel walls in search of 𝙗𝙖𝙘𝙩𝙚𝙧𝙞𝙖 to 𝙚𝙣𝙜𝙪𝙡𝙛 and 𝙙𝙚𝙨𝙩𝙧𝙤𝙮. 🩸20. 𝙒𝙝𝙞𝙩𝙚 𝙘𝙚𝙡𝙡𝙨 are the body’s primary 𝙙𝙚𝙛𝙚𝙣𝙨𝙚 𝙖𝙜𝙖𝙞𝙣𝙨𝙩 𝙞𝙣𝙛𝙚𝙘𝙩𝙞𝙤𝙣. #points #NCERT #neet #quick_revision #Biology ❣ [Share it👀] ❣️ FOR MORE JOIN❣️ ╔════════════════╗ @biology_class_11_12 ╚════════════════╝

Topic:- 🩺ANIMAL TISSUES🫀 #short_notes #neet #quick_revision #Biology ❣ [Share it👀] ❣️ FOR MORE JOIN❣️ ╔════════════════╗ @biology_class_11_12 ╚════════════════╝ - @khushigupta_17 🥱

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📌Important Points of the Chapter :- 🍀"Transport in Plants"🍀 ☞ Most accepted theory of opening and closing of stomata: Active Potassium transport theory, Proposed by” Levitt. ☞ Maximum opening of stomata occurs in blue light followed by red light. ☞ Cytokinin helps in stomata opening & ABA closing of stomata. ☞ Antitranspiratants agents: Colourless plastic, Silicone oil, Phenymercuric acetate, ABA and CO2. ☞ Field capacity: Maximum water holding capacity of soil. Clay soil has highest. ☞ Holard: Amount of total water present in the soil. ☞ DPD of pure Water is lowest and concentrated solution is highest DPD. ☞ Root Pressure theory was given by Stephen hales (Father of Plant Physiology). ☞ In girdling experiment, root die first. ☞ Guttation: it is the process of loss of water in the form of droplets through the hydathodes. ☞ Hydathodes: Special opening of veins near the tip of grass blades, and leaves of many herbaceous parts. ☞ Cohesion: Mutual attraction between water molecules. #short_notes #neet #quick_revision #Biology ❣ [Share it👀] 🥲KEEP LOVING & SHARING🥲 ┏━━━━°❀•°💙°•❀°━━━━┓ @biology_class_11_12 ┗━━━━°❀•°💙°•❀°━━━━┛

🌸NCERT🌸 🍀🌝Plant growth and development🌚🍀 ☞Points:- • A single maize root apical meristem can be give rise to more than 17500 new cells per hour • A wateremelon cell can increase its size upto 3,50,000 times ~Arithmetic growth rate - Only one daughter cell continuous to divide while others differentiate and matures ~ Geometric growth rate - all the daughter cells produced will divide..Sigmoid growth curve is obtained ~ Absolute growth rate - Increase in growth per unit time ~ Relative growth rate - Increase in growth per unit time per unit initial parameter ~ Relative growth rate also called as Efficiency index 👉Differentiation - Conversion of meristamatic cell into structurally and functionally specialised Primary permanent tissue. eg: Formation of primary xylem 👉Dedifferentiation - Conversion of primary permanent tissue to Secondary meristems. eg: Formation of cork cambium 👉Redifferentiation - Formation of secondary permanent tissus from secondary meristems eg: Formation of secondary xylem 🍁✨Development in plants = Growth + differentiation✨🍁 💥Eg of plasticity - ◉Heterophylly in cotton, coriander, larkspur in which leaves of juvenile and mature stages are different ◉Heterophylly in buttercup in which leaves in terrestrial and aquatic habitat plants are different 🌼✿Plant Growth Regulators {PGR}✿🌼 •Plants growth regulators can be any group of small chemical molecule ☞They can be indole compounds eg: Indole 3 acetic acid (IAA) ☞Adenine derivatives eg: N6 furfuryl amino purine, kinetin ☞carotenoids eg: abscisic acid ☞terpenes eg: gibberellic acid ☞Gases eg: ethylene ⚡️Plant growth promotors :- Auxin, Cytokinin, Giberellic acid ⚡️Plant growth inhibitors :- Abscisic acid ⚡️Ethylene has both properties ⊙ Auxin - Effects : 👉1. First isolated from human urine 👉2. IAA & IBA are natural auxins and NAA & 2,4 - D are synthetic auxins 👉3. Auxin initiate roots in stem cuttings 👉4. It promotes flowering in pineapples 👉5. Prevent abscission of young fruit and leaf...promotes abscission of old leaf & fruits 👉6. Promote apical dominance 7. 2,4-D act as herbicide in dicots ⊙ Gibberellins - Effects : 👉1. Increase length of grape stalks 👉2. Causes fruits like apple to elongate and improve its shape 👉3. Delay senescence 👉4. GA3 promote malting in brewing industry 👉5. Increase length of stem in sugarcane and increase yield upto 20 tonnes per acre 👉6. Cause internodal elongation in beet, cabbage, and other rosette plants ⊙Cytokinins - Effects : 👉1. Promote cell division 👉2. Overcome apical dominance 👉3. Promote nutrient mobilisation ⊙ Ethylene - Effects : 👉1. Promotes senescence and abscission 👉2. Promote ripening 👉3. Breaks seed and bud dormancy 👉4. Helps leaf & upper part of shoot to remain above water 👉5. Initiate flowering in pineapple ⊙Abscissic acid - Effects : 👉1. Inhibits seed germination 👉2. Also called stress hormone 👉3. Antagonist to GA. #Biology #quick_revision #neet #short_notes [Share it👀📌] ❣Join❣ ╔═══════════════╗ @biology_class_11_12 ╚═══════════════╝

💙SUMMARY OF HUMAN PHYSIOLOGY💙 -{Part 2🥲} 1. Weight of Liver : 1.2 to 1.5 kg 2. Weight of Kidney : 120 to 170 gm 3. Number of lobes in Liver : 2 4. Number of salivary glands : 3 pairs 5. Number of portions in stomach : 4 (Cardiac, fundic, body & Pyloric). 6. Stomach stores food for : 4 to 5 hours. 7. pH of saliva : 6.8 8. pH of gastric juice : 1.8 9. pH in duodenum : 7.8 10. pH of urine : 6.0 11. Breathing rate : 12-16 times/minute 12. Tidal volume : 500 mL 13. IRV : 2500 - 3000 mL 14. ERV : 1000 - 1100 mL 15. RV : 1100 - 1200 mL 16. Water in plasma : 90-92% 17. Water in watermelon : 92%. 18. Water in herbaceous plants : 85-90%. 19. Water in human cell : 70-90%. 20. Colon is divided in : 4 parts (Ascending, transverse, descending and sigmoid parts). 21. Solubility of CO2 is 20-25 times higher than that of O2 . 22. Diffusion membrane is made up of 3 layers. 23. Total thickness of diffusion membrane : < 1 mm 24. No. of wall layers in alimentary canal (from oesophagus to rectum) : "4" 25. Gastric gland have 3 type of cells : Mucus neck cells, chief cells and parietal cells 26. Every 100 ml of oxygenated blood can deliver how much O2 to tissues : 5 mL 27. Every 100 ml of deoxygenated blood can deliver how much CO2 to the :-4ml #biology #trick #neet #quick_revision [Share it👀] ❣Join❣ ╔═══════════════╗ @biology_class_11_12 ╚═══════════════╝

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