Excitation-Contraction Coupling & Muscular Contraction Regulation


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question 1 of 3

Which of the following regulates smooth muscle but not striated muscle contraction?

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1. Which of the following must happen to detach the cross-bridge between actin and myosin?

2. Which regulatory protein covers the myosin binding sites on the actin molecules?

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About This Quiz & Worksheet

The quiz's questions center around definitions. You will be asked to choose which of the answers provided to you correctly describe the question.

Quiz & Worksheet Goals

The assessment will test you on the following definitions:

  • Smooth muscle and striated muscle
  • Actin and myosin
  • ATP synthesis
  • Troponin

Skills Practiced

The quiz will test you on the following skills:

  • Reading comprehension - ensure that you draw the most important information from the related excitation-contraction lesson
  • Making connections - use understanding of the concept of excitation-contraction and muscular contraction
  • Defining key concepts - ensure that you can accurately define main phrases, such as troponin
  • Distinguishing differences - compare and contrast topics from the lesson, such as actin and myosin

Additional Learning

After you finish the quiz, make sure to explore the corresponding lesson Excitation-Contraction Coupling & Muscular Contraction Regulation. The lesson covers the following topics:

  • Exploring the regulation of muscle contraction
  • Describing the role of tropomyosin
  • Investigating the contribution of calcium to contraction
  • Detailing the relationship of troponin and contraction
  • Defining ATP and its multiple roles