Which of the Following Statements Are True of the Structure

question 11

Multiple Choice

Which of the following statements are true of the structure of sarcomeres (Select all that apply) ?

• A)Myosin filaments are in the center of the sarcomere.
• B)The T tubules of the sarcolemma are close to the sarcoplasmic reticulum.
• C)Troponin and tropomyosin are inhibiting proteins.
• D)The sarcoplasmic reticulum stores sodium ions that stimulate contraction.
• E)Actin filaments are attached to the Z lines in the center of the sarcomere.
• F)The contracting proteins are actin and myosin.

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