which of the following statements is true? a. the microvilli absorb nutrients into the lymphatic system. b. the microvilli trap nutrients so the villi cells can absorb them. c. the villi block toxins from being absorbed into the blood. d. the villi complete the breakdown of foods into nutrients. e. the microvilli facilitate the digestion of a large percentage of deficient nutrients.



Answer :

The correct answer is (b) the microvilli trap the nutrients so the villi cells can absorb them. The microvilli increase the surface are a thereby it facilitates the absorption of the nutrients.

  • In the simplest terms, microvilli are minuscule microscopic projections that are found in, on, and around cells.
  • They may exist independently or with villi (projections of some mucous membranes, most specifically of the small intestine, which are tiny folds that project out like numerous fingers).
  • Microvilli are even more minute folds that protrude like fingers from each villi.
  • The surface of egg cells, the small intestine, and white blood cells are where microvilli are most frequently seen.
  • On the apical surface of some epithelial cells, such those in the small intestine, thousands of microvilli come together to form a structure known as the brush boundary.
  • Microvilli are a kind of surface protuberances that are rather polymorphic and are regularly packed in some tissues while being loosely positioned in others.

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