Part 2 (page 20 of 25) college.edu/mod/quiz/attempt.php?attempt=502922&cmid%335302&page=19 XARKANA LLEGE My Courses Question 20 Not yet answered Points out of 1.00 P Flag question Facilitated diffusion (transport) does not require energy but does require a carrier or channel protein. It is often used for helping molecules (such as glucose or amino acids) get across the plasma membrane. Select one: O True O False Next page Previous page Quiz navigation eft 0:21:07 DELL & @ # 24 3 4 y W e k j m b

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Muscle Action

A change in the body or a bodily organ as a result of its functioning is referred to as an action. Muscle action can be defined as the specific movement of a bodily part generated by the contraction of a muscle. The muscle proteins actin and myosin are the important contractile proteins involved in muscle action. Muscle contraction, in addition to movement, serves several other important functions in the body, including posture, heat generation, and joint stability. Muscle contraction maintains posture, which includes standing and sitting.