Class 4 Exam > Class 4 Videos > GK Olympiad for Class 4 > What's In Our Digestive System?
What's In Our Digestive System? Video Lecture | GK Olympiad for Class 4
FAQs on What's In Our Digestive System? Video Lecture - GK Olympiad for Class 4
| 1. What is the function of saliva in our digestive system? |  |
Ans. Saliva helps to break down food and moisten it for easier swallowing. It also contains enzymes that begin the digestion process.
| 2. How does the stomach contribute to digestion? | |
Ans. The stomach secretes gastric juices that help to further break down food and kill bacteria. It also mixes the food with these juices to create a semi-liquid substance called chyme.
| 3. What role does the small intestine play in digestion? | |
Ans. The small intestine is where most of the absorption of nutrients from food takes place. It also produces enzymes to further break down food particles.
| 4. What are the main functions of the large intestine in the digestive system? | |
Ans. The main functions of the large intestine include absorbing water and electrolytes from indigestible food, forming and storing feces, and housing beneficial bacteria.
| 5. How does the liver contribute to digestion? | |
Ans. The liver produces bile, which is stored in the gallbladder and released into the small intestine to help break down fats. It also detoxifies harmful substances in the blood.
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Oct 04, 2025
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