Which organ in humans absorb a. food b. water How are the above organs adapted to
maximise their functions?
Answers
a). The food is absorbed in the small intestine of the human body while
b). The large intestine performs the function of absorbing water.
Explanation:
a). Plicae Circulares is the inner wall or mucosa of the small intestine which is covered with folds or wrinkles. It functions to project the tiny finger-like tissues known as Villi and each Villi further contains a succession of the finger-like projections called microvilli. The Plicae Circulares, Villi, and Microvilli together function to enhance the surface area for easy absorption of nutrients gained from food.
b). The large intestine is characterized as gastrointestinal tract which primarily functions to help in absorption of water, as well as, vitamins during the process of converting the already digested food in the form of feces. It assists the body to detain water for various other metabolic processes and condense feces.
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Answer:
Absorption of food takes place in the small intestine:
The inner wall, or mucosa, of the small intestine, is covered in wrinkles or folds called plicae circulares that project microscopic finger-like pieces of tissue called villi, which in turn have finger-like projections known as microvilli.
The function of the plicae circulares, the villi, and the microvilli is to increase the amount of surface area available for the absorption of nutrients.
Absorption of water takes place in the large intestine:
The large intestine is the final section of the gastrointestinal tract that performs the vital task of absorbing water and vitamins while converting digested food into feces. The absorption of water by the large intestine not only helps to condense and solidify feces but also allows the body to retain water to be used in other metabolic processes.