Smooth muscle is characterized by all of the following except

Asked by admin @ in Biology viewed by 293 People

Smooth muscle is characterized by all of the following except ________.

A. there are noncontractile intermediate filaments that attach to dense bodies within the cell
B. there are more thick filaments than thin filaments
C. it appears to lack troponin
D. there are no sarcomeres

Answered by admin @


Answer:

The correct answer is option B. "there are more thick filaments than thin filaments".

Explanation:

Smooth muscle is a type of muscle tissue used to apply pressure to vessels and organs when needed. The cells of the smooth muscle have fibers of actin and myosin as well as thick filaments and thin filaments. Is false to affirm that there are more thick filaments than thin filaments in sooth muscle. Actually, the ratio of thin to thick filaments is close to 10:1, therefore sooth muscle have much more thin filaments than thick filaments.


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