Which is a TRUE statement about smooth muscle?
A. Smooth muscle does not use troponin-tropomyosin to regulate cross-bridge activity.
B. Smooth muscle does not have thick and thin filaments.
C. Smooth muscle is striated.
D. The myosin in smooth muscle requires phosphorylation before it can bind to ATP.
E. Changes in cytosolic calcium do not regulate cross-bridge activity in smooth muscle.
Answer: A
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A. Trauma B. Paralysis C. Systemic disorders D. Infections
Which behavioral property of muscle tissue is defined as "the ability to respond to a stimulus"?
A. elasticity B. irritability C. extensibility D. contractility
This figure shows the muscles of the anterior trunk. What muscle does number 1 indicate?
A. Pectoralis major B. Deltoid C. Latissimus dorsi D. Biceps brachii E. Pectoralis minor
Following post-translational modification, any misfolded protein will be destroyed by
A) ribonucleases. B) chaperones. C) ubiquitin. D) methylation.