The digestive system is characterized by 4 basic processes: Motility, Secretion,

Question

The digestive system is characterized by 4 basic processes: Motility, Secretion, Digestion, and Absorption.

For each of the scenarions/ ability below, state which basic process it is affiliated with:

1. Ensures thst contents of the digestive tract are sufficiently lubricated and solubilized?

2. Refers to the transfer of water and nutrients from the digestive tract lumen into blood or lymph?

3. Requires a diverse set of enzymes, each specialized to break down a particular food molecule?

4. Involves maintaining a certain level of smooth muscle tone in the digestive tract at all times?

Explanation / Answer

1) Secretion Ensure that contents of the digestive tract are sufficiently lubricated and solubilized.

2) Absorption refers to the transfer of water and nutrients from the digestive tract lumen into blood or lymph

3) Digestion requires a diverse set of enzymes, each specialized to break down a particular food molecule e.g. proteases, amylases, lipases, and nucleases.

4) Motility involves maintaining a certain level of smooth muscles tone in the digestive tract at all times.

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