Muscular Contraction: Cross-Bridge Formation


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question 1 of 3

Which proteins form a cross-bridge, causing muscular contraction?

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1. Which of the following proteins makes up the thin filaments and binds to the ends of the sarcomere at the Z lines?

2. During which stage of the cross-bridge cycle does the sarcomere shorten?

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About This Quiz & Worksheet

Cross-bridge formation is an important concept in biology and physiology, and this quiz/worksheet will help you test your understanding of its components as well as related terms.

Quiz & Worksheet Goals

In these assessments you'll be tested on the components and functions of:

  • Proteins that cause contractions
  • Proteins that bind to then ends of sarcomere
  • The cross bridge cycle
  • ATP hydrolysis

Skills Practiced

This quiz and worksheet allow students to test the following skills:

  • Distinguishing differences - compare and contrast the different proteins discussed in the lesson
  • Reading comprehension - ensure that you draw the most important information from the lesson on the cross bridge cycle
  • Information recall - access the knowledge you've gained regarding the energy from ATP hydrolysis

Additional Learning

To learn more about cross-bridge formation and related terms, review the accompanying lesson called Muscular Contraction: Cross-Bridge Formation. This lesson covers the following objectives:

  • Know the two contractile proteins
  • Define sarcomere
  • Differentiate between proteins
  • Define cross-bridge
  • Understand what constitutes cross-bridge cycling
  • Know the different states of the cross-bridge cycle