One of the key features of villi and microvilli in the digestive system is their finger-like projection shape. Which of the following is an example of how the shape of microvilli can enhance nutrient absorption? a. Nutrients can enter the bloodstream through the blood vessels that are located in middle of the microvilli. b. Larger microvilli have more surface area over which more nutrients are absorbed. c. The microvilli projections aid in mechanical digestion of food particles. d. The finger-like projections prevent large particles of food from passing through the digestive system.
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Nutrients can enter the bloodstream through the blood vessels that are located in the middle of the microvilli. This statement is not directly related to the shape of microvilli enhancing nutrient absorption. b. Larger microvilli have more surface area over which Show more…
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Microvilli greatly increase the efficiency of nutrient uptake in the small intestines. How do the size and shape of microvilli promote this efficiency? a. They have a greater surface area-to-volume ratio than larger cells. The finger-like projection shape provides more surface area over the small intestines from which they absorb nutrients and contains blood vessels so nutrients passing through them can enter the bloodstream readily. b. They have a greater surface area-to-volume ratio than larger cells. The finger-like projection shape is present in the middle of microvilli, which have more surface area over the small intestines from which they absorb nutrients and also contains blood vessels so nutrients can enter the blood easily. c. They have a greater surface area-to-volume ratio than larger cells. The finger-like projections prevent large particles of food from passing through the digestive system and also contain blood vessels so nutrients passed through them can readily enter the bloodstream. d. They have a greater surface area-to-volume ratio than larger cells. The finger-like projections aid in mechanical digestion of food particles and contain blood vessels so nutrients passing through them can enter the bloodstream readily.
Microvilli ________ . a. increase the surface area of the stomach b. are the main type of cell in the lining of the small intestine c. project from the surface of cells in the small intestine d. produce bile
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