Digestion in stomach in urdu | Class 10 chap 1 new edition | Biosapiens by biochemist

In this lecture, we will discuss the Stomach in detail from Chapter 1 - Gaseous Exchange / Digestion (Class 10 Biology) according to Punjab Textbook. We have covered the complete structure of the stomach with the help of diagrams (Figure 1.2 Peristalsis & Figure 1.3 Structure of Stomach) including its location, cardiac & pyloric ends, sphincters, gastric glands and the formation of chyme. This lecture is very important for board exams and for concept building. 📚 What You Will Learn in This Video: 1. Location & Shape of Stomach - J-shaped, upper left side of abdominal cavity 2. Cardiac End vs Pyloric End 3. Cardiac Sphincter & Pyloric Sphincter - Functions and location 4. Peristalsis and Churning Movement of Stomach 5. Mechanical and Chemical Digestion in Stomach 6. Composition of Gastric Juice: HCl, Pepsinogen, Mucus 7. Activation of Pepsinogen into Pepsin and Protein Digestion into Peptides 8. Protective Role of Mucus Layer 9. What is Chyme? Formation and movement (5-15 mL per opening) 10. Structure of Gastric Glands - Pore, Mucus secreting, HCl secreting, Pepsinogen secreting cells ✅ Board Questions Covered From This Topic: After watching this video, you will be able to answer: • Where is the stomach located and what is its shape? • What is the difference between cardiac end and pyloric end? • What are cardiac and pyloric sphincters? What is their function? • What are the functions of the stomach? • How does churning help in digestion? • What is gastric juice? Write its components and functions. • How is pepsinogen converted to pepsin? What is the role of HCl? • Why doesn't HCl damage the stomach wall? • What is chyme and how long does food stay in the stomach? • Draw and label the structure of gastric glands. • Why is pepsin secreted in inactive form? 📖 Complete Playlist - Chapter 1 Class 10 Biology: Watch all lectures of Chapter 1 in sequence here:    • 10 class biology new edition 2026-2027 ful...   Don't forget to LIKE, SHARE & SUBSCRIBE to BioSapiens by Biochemist for more concept-based lectures. #Class10Biology #Stomach #Chapter1Biology #BioSapiensByBiochemist #MatricBiology #10thBiology #GastricJuice #Chyme #Pepsin #PunjabBoard