Class 10 Exam > Class 10 Videos > Human Digestive System - Life Processes, Class 10 Science
Human Digestive System - Life Processes, Class 10 Science Video Lecture
FAQs on Human Digestive System - Life Processes, Class 10 Science Video Lecture
| 1. What are the main organs involved in the human digestive system? |  |
Ans. The main organs involved in the human digestive system are the mouth, esophagus, stomach, small intestine, large intestine, and rectum.
| 2. How does the digestion process begin in the human body? | |
Ans. The digestion process begins in the mouth where food is broken down into smaller pieces by chewing and mixed with saliva, which contains enzymes that start the breakdown of carbohydrates.
| 3. What is the role of stomach in the human digestive system? | |
Ans. The stomach plays a crucial role in the human digestive system by mixing food with gastric juices and breaking it down into a semi-solid mixture called chyme. It also secretes enzymes and acids to further break down proteins and kill bacteria.
| 4. How is absorption of nutrients facilitated in the human digestive system? | |
Ans. The absorption of nutrients takes place mainly in the small intestine. The inner surface of the small intestine has millions of tiny finger-like projections called villi, which increase the surface area for absorption. Nutrients are absorbed into the bloodstream through the walls of the small intestine and transported to the body's cells.
| 5. What happens to the undigested food in the human digestive system? | |
Ans. Undigested food, along with waste products, passes from the small intestine to the large intestine. In the large intestine, most of the remaining water is absorbed, and the waste material is formed into solid feces. The feces are then stored in the rectum until they are eliminated from the body through the anus during the process of defecation.
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