Question What is the role of villi in digestion Solution Increasing surface area of absorption Villi are the numerous finger like projections, whose walls are richly supplied with blood capillaries and lymph . Absorption is achieved by its large length and by the presence of mucous membrane, microvilli and villi. The mucous membrane of the small intestine has circular folds that start from the second part of the . The villi are known to provide more surface area within the small intestine for better absorption of the broken down digested food into the blood. Absorption: In this process, the digested food within the .
Diagram: 3 Marks The main function of small intestine is absorption. Absorption is directly dependent on surface area. So to increase the surface area, the internal surface of the intestinal wall is folded onto . The finger-like projections known as villi, drastically increase the surface area of the small intestine for greater absorption of the digested food. The blood carries the absorbed food material to different . What’s the difference between villi and microvilli? Size of villi ranges between 0.5 to 1.6 mm while that of microvilli is about 1 µm in length. Additionally, villi are seen on the mucous membrane, specifically in .
Villi are small finger like projections located in the walls of the small intestine. Each villi is composed of a thin epithelium, blood capillary and a lymphatic vessel (lacteal). Question How alveoli similar to villi Solution Both the alveoli in the lungs and villi in the small intestine are in direct contact with blood capillaries. this enables gaseous exchange in the lungs via alveoli, . Explain the location and function of villi from Chapter 2 of NCERT Solutions for Class 7 Science. The finger-like projections or outgrowth present in the small intestine of our digestive system are called .
What is the role of villi in digestion - BYJU'S.
What is the role of villi in the absorption of food?
Draw a neat labeled diagram of intestine villi.
- Which of the following statements are not true about villi?1.
- How alveoli similar to villi - BYJU'S.
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Sources
- https://byjus.com/question-answer/what-is-the-role-of-villi-in-digestion/
- https://byjus.com/biology/small-intestine-diagram/
- https://byjus.com/question-answer/what-is-the-role-of-villi-in-the-absorption-of-food-differentiate-between-absorption-and/
- https://byjus.com/question-answer/draw-a-neat-labeled-diagram-of-intestine-villi-3-marks-1/
