Which of the following processes describes the passage of digested food into the blood system to be processed for energy, nutrients, and tissue building?

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BlackTom AI · Accepted Answer

To tackle the question, I’ll examine each proposed process in relation to how digested food enters the body to be processed for energy, nutrients, and tissue building.
Option 1: Motility. This refers to the movement of contents through the digestive tract, such as mixing and propulsion. While motility is essential for moving chyme along, it does not describe the transfer of digested nutrients into the blood.
Option 2: Peristalsis. Peristalsis is a coordinated wave-like muscle contraction that propels contents through the GI tract. Like general motility, it facilitates movement rather than the actual transfer of nutrients into the circulatory system.
Option 3: Mastication. Mastication means chewing, the mechanical breakdown of food in the mouth. This is an initial step in digestion but not the process by which nutrients cross into the bloodstream for energy and tissue synthesis.
Option 4: Absorption. Absorption is the physiological process by which digested nutrients cross the intestinal lining and enter the bloodstream (or lymphatic system) for utilization by body cells. This is precisely the step where nutrients become available for energy production, growth, and repair.
In summary, the first three options describe movements or preparatory actions within the digestive tract, whereas absorption specifically accounts for the transfer of digested nutrients into the blood for systemic use.

KINE-3030-001 (Fall 2025) Chapter 6

Which of the following processes describes the passage of digested food into the blood system to be processed for energy, nutrients, and tissue building?

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