NEET PYQ

 🔥 50 Most Important NEET PYQs of Chapter 18: Body Fluids and Circulation – Part 1 (Q1–25) 📘 By neetpyqall | biologyatease1.blogspot.com Welcome to Part 1 of Chapter 18: Body Fluids and Circulation , where we cover Q1 to Q25 of past NEET questions with clear, exam-focused explanations! 1. What is the normal pH of human blood? A) 6.8 B) 7.4 C) 7.0 D) 8.4 ✅ Answer: B) 7.4 🧠 Explanation: Blood is slightly alkaline, maintained by buffer systems. 2. Which of the following is responsible for clotting of blood? A) Red blood cells B) White blood cells C) Platelets D) Plasma ✅ Answer: C) Platelets 🧠 Explanation: Platelets release thromboplastin, initiating clotting cascade. 3. Universal donor blood group is: A) A B) B C) AB D) O ✅ Answer: D) O 🧠 Explanation: O group lacks A and B antigens, so can be given to anyone. 4. Which of these is a granulocyte? A) Lymphocyte B) Monocyte C) Neutrophil D) Erythrocyte ✅ Answer: C) Neutrophil 🧠 Explanation:...

 🔥 50 Most Important NEET PYQs of Chapter 17: Breathing and Exchange of Gases – Part 2 (Q26–50) 📚 By neetpyqall | biologyatease1.blogspot.com Here's Part 2 of Chapter 17: Breathing and Exchange of Gases , featuring Q26 to Q50 with detailed explanations to help you conquer NEET! 26. In alveoli, the exchange of gases takes place through: A) Osmosis B) Active transport C) Diffusion D) Filtration ✅ Answer: C) Diffusion 🧠 Explanation: Gases move from higher to lower partial pressure by simple diffusion. 27. The volume of air remaining in the lungs after maximum forceful expiration is: A) Inspiratory reserve volume B) Functional residual capacity C) Expiratory reserve volume D) Residual volume ✅ Answer: D) Residual volume 🧠 Explanation: It keeps alveoli inflated and prevents lung collapse. 28. Which of the following will lead to decreased oxygen affinity of hemoglobin? A) Low temperature B) High pH C) Low CO₂ concentration D) High CO₂ concentration ✅ Ans...

 🔥 50 Most Important NEET PYQs of Chapter 17: Breathing and Exchange of Gases – Part 1 (Q1–25) 📚 By neetpyqall | biologyatease1.blogspot.com Here’s Part 1 of Chapter 17: Breathing and Exchange of Gases , with the first 25 important NEET questions! 1. Which structure prevents the collapse of trachea? A) Smooth muscle B) Cartilaginous rings C) Pleural fluid D) Diaphragm ✅ Answer: B) Cartilaginous rings 🧠 Explanation: C-shaped cartilaginous rings keep the trachea open during breathing. 2. The functional unit of lungs is: A) Bronchiole B) Alveolus C) Trachea D) Bronchus ✅ Answer: B) Alveolus 🧠 Explanation: Gas exchange occurs in the alveoli. 3. Respiratory pigment in humans is: A) Haemocyanin B) Hemoglobin C) Chlorocruorin D) Haemerythrin ✅ Answer: B) Hemoglobin 🧠 Explanation: Hemoglobin transports oxygen in blood. 4. The volume of air remaining in lungs after normal expiration is called: A) Residual volume B) Tidal volume C) Vital capacity D...

 🔥 50 Most Important NEET PYQs of Chapter 16: Digestion and Absorption – Part 2 (Q26–50) 📚 By neetpyqall | biologyatease1.blogspot.com Let’s now complete the second half! Here’s Q26–50 of Chapter 16: Digestion and Absorption . 26. Vitamin essential for calcium absorption is: A) Vitamin A B) Vitamin B C) Vitamin C D) Vitamin D ✅ Answer: D) Vitamin D 🧠 Explanation: Vitamin D promotes absorption of calcium from the intestine. 27. Lacteals are concerned with absorption of: A) Sugars B) Amino acids C) Fats D) Minerals ✅ Answer: C) Fats 🧠 Explanation: Lacteals (lymphatic vessels in villi) absorb fatty acids and glycerol. 28. Which of the following is NOT digested in the stomach? A) Proteins B) Fats C) Carbohydrates D) Both B and C ✅ Answer: D) Both B and C 🧠 Explanation: Only proteins are digested in the stomach, not carbohydrates or fats. 29. The semi-liquid mass of partly digested food in the stomach is called: A) Bolus B) Chyme C) Chyle D) P...

 🔥 50 Most Important NEET PYQs of Chapter 16: Digestion and Absorption – Part 1 (Q1–25) 📚 By neetpyqall | biologyatease1.blogspot.com Let’s dive into the first 25 PYQs of Chapter 16: Digestion and Absorption — super important for NEET! 1. Which enzyme is not present in gastric juice? A) Pepsin B) Rennin C) Lipase D) Amylase ✅ Answer: D) Amylase 🧠 Explanation: Amylase is found in saliva and pancreatic juice, but not in gastric juice. 2. In adults, Rennin is: A) Active B) Inactive C) Secreted in large amounts D) Present in bile ✅ Answer: B) Inactive 🧠 Explanation: Rennin (important for milk protein digestion) is active in infants but absent or inactive in adults. 3. Which of the following is absorbed in the stomach? A) Proteins B) Alcohol C) Fats D) Starch ✅ Answer: B) Alcohol 🧠 Explanation: Some substances like alcohol and certain drugs are absorbed directly from the stomach. 4. Which organ secretes bile? A) Pancreas B) Gallbladder C) Live...

 🪴 50 Most Important NEET PYQs of Chapter 15: Plant Growth and Development – Part 2 (Q26–50) 📘 By neetpyqall | biologyatease1.blogspot.com Continuing with Part 2! Let’s crack the next set of most important NEET previous year questions for Chapter 15, Plant Growth and Development . 26. Which plant hormone can replace cold treatment for flowering? A) Auxin B) Cytokinin C) Gibberellin D) ABA ✅ Answer: C) Gibberellin 🧠 Explanation: Gibberellins can substitute for cold treatment (vernalization) to induce flowering in some plants. 27. Dedifferentiation means: A) Differentiation of meristematic cells B) Conversion of mature cells into meristematic cells C) Loss of ability to divide D) All of the above ✅ Answer: B) Conversion of mature cells into meristematic cells 🧠 Explanation: Dedifferentiation is when mature cells regain the ability to divide and form meristems like interfascicular cambium. 28. Which process does red light regulate? A) Phototropism B) Ger...

  🪴 50 Most Important NEET PYQs of Chapter 15: Plant Growth and Development – Part 1 (Q1–25) 📘 By neetpyqall | biologyatease1.blogspot.com 1. Which one is a growth inhibitor? A) IAA B) GA C) ABA D) Kinetin ✅ Answer: C) ABA 🧠 Explanation: Abscisic acid (ABA) is known as a growth inhibitor because it promotes dormancy and abscission, and inhibits seed germination. 2. Gibberellins cause: A) Inhibition of cell division B) Cell elongation C) Stomatal closure D) Leaf fall ✅ Answer: B) Cell elongation 🧠 Explanation: Gibberellins promote stem elongation and leaf expansion by stimulating cell elongation and breaking seed dormancy. 3. The function of cytokinins is: A) Inhibiting cell division B) Promoting root growth C) Promoting cell division D) Promoting abscission ✅ Answer: C) Promoting cell division 🧠 Explanation: Cytokinins promote cytokinesis (cell division), especially in actively growing tissues. 4. Which hormone delays leaf senescence? A) ABA ...

🌱 50 Most Important NEET PYQs of Chapter 14: Respiration in Plants – Part 2 (Q26–50) By: neetpyqall Welcome back, NEET aspirants! In this Part 2 post, we continue solving the next 25 most important previous year questions (Q26–50) from Chapter 14 – Respiration in Plants , each with crisp, clear explanations to make your prep easier and smarter. 26. How many NADH molecules are formed in one turn of the Krebs cycle? A) 1 B) 2 C) 3 D) 4 ✅ Answer: C) 3 🧠 Explanation: In one turn of the Krebs cycle, 3 NADH molecules are produced. 27. Which step of cellular respiration is common in aerobic and anaerobic respiration? A) Electron transport chain B) Krebs cycle C) Glycolysis D) Alcoholic fermentation ✅ Answer: C) Glycolysis 🧠 Explanation: Glycolysis occurs in both types of respiration and takes place in the cytoplasm. 28. Net gain of ATP during anaerobic respiration of one glucose molecule is: A) 2 B) 8 C) 36 D) 38 ✅ Answer: A) 2 🧠 Explanation: Only glycolysi...

🧬 50 Most Important NEET PYQs of Chapter 14: Respiration in Plants – Part 1 (Q1–25) By: neetpyqall Welcome to another power-packed NEET preparation blog! In this post, we’re diving deep into the first 25 most important previous year questions from Chapter 14 – Respiration in Plants . Each question is followed by a detailed solution to boost your clarity and confidence. 1. In which of the following, the first step of aerobic respiration occurs? A) Cytoplasm B) Mitochondria C) Chloroplast D) Ribosome ✅ Answer: A) Cytoplasm 🧠 Explanation: The first step of aerobic respiration is glycolysis, which takes place in the cytoplasm. 2. The link between glycolysis and Krebs cycle is: A) Pyruvic acid B) Acetyl CoA C) Oxaloacetic acid D) Lactic acid ✅ Answer: B) Acetyl CoA 🧠 Explanation: Pyruvate is converted into Acetyl CoA before entering the Krebs cycle. 3. End product of glycolysis is: A) Glucose B) Pyruvic acid C) Acetyl CoA D) Citric acid ✅ Answer: B) Pyruvic ...

🌿 50 Most Important NEET PYQs of Chapter 13: Photosynthesis in Higher Plants – Part 2 (Q26–50) | By neetpyqall This is Part 2 (Q26 to Q50) of the most important NEET Previous Year Questions from Chapter 13: Photosynthesis in Higher Plants . These questions are selected for maximum relevance and detailed to help you retain, revise, and apply . 26. What is the first stable compound formed during C₄ cycle? A) PGA B) Malic acid C) OAA (Oxaloacetic acid) D) PEP ✅ Answer: C) OAA (Oxaloacetic acid) Explanation: OAA is the first stable 4-carbon compound formed in the mesophyll cells of C₄ plants. 27. In cyclic photophosphorylation, electrons are: A) Lost after passing through ETS B) Returned to chlorophyll C) Used to reduce NADP⁺ D) Used in splitting water ✅ Answer: B) Returned to chlorophyll Explanation: In cyclic photophosphorylation, electrons cycle back to the same chlorophyll molecule, producing ATP only. 28. The site of photophosphorylation is: A) Cytoplasm B) ...

🌿 50 Most Important NEET PYQs of Chapter 13: Photosynthesis in Higher Plants – Part 1 (Q1–25) | By neetpyqall Get ready to master one of the most frequently asked and high-weightage chapters of NEET – Photosynthesis in Higher Plants . Below are 25 highly important Previous Year Questions (PYQs) with detailed explanations to help you gain conceptual clarity and improve accuracy in the exam. 1. Which of the following is a correct statement regarding photosynthesis? A) Oxygen is consumed B) CO₂ is released C) It is an exothermic reaction D) It is an endothermic reaction ✅ Answer: D) It is an endothermic reaction Explanation: Photosynthesis requires energy (sunlight) to convert CO₂ and H₂O into glucose, making it an endothermic process. 2. In which part of the chloroplast does the light reaction occur? A) Stroma B) Outer membrane C) Grana (thylakoid membranes) D) Inner membrane ✅ Answer: C) Grana (thylakoid membranes) Explanation: Light-dependent reactions occur in th...

🌱 50 Most Important NEET PYQs of Chapter 12: Mineral Nutrition – Part 2 (Q26–50) By neetpyqall Welcome to Part 2 of Mineral Nutrition NEET PYQs ! This section (Q26–50) continues our handpicked, most frequently asked and important NEET-level questions, complete with explanations for crystal-clear concept clarity. 26. Which of the following is not a function of potassium in plants? A) Activates enzymes B) Maintains turgidity C) Involved in protein synthesis D) Constituent of amino acids ✅ Answer: D) Constituent of amino acids Explanation: Potassium plays a role in enzyme activation and osmoregulation, but it is not a structural component of amino acids. 27. Which is the first observable symptom of mineral deficiency? A) Necrosis B) Chlorosis C) Wilting D) Shortening of internodes ✅ Answer: B) Chlorosis Explanation: Chlorosis or yellowing is the most common and first visible symptom of mineral deficiency. 28. Which nutrient deficiency leads to curling of leaves...