Practice Structure of Contractile Proteins - 17.2.1 | 17. LOCOMOTION AND MOVEMENT | CBSE 11 Biology
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17.2.1 - Structure of Contractile Proteins

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What protein forms the thin filament in muscles?

πŸ’‘ Hint: Think of the protein that enables muscle contraction.

Question 2

Easy

What is the function of tropomyosin in muscle contraction?

πŸ’‘ Hint: This protein prevents myosin from binding to actin at rest.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What proteins are primarily involved in muscle contraction?

  • Actin and Myosin
  • Elastin and Collagen
  • Tropomyosin and Keratin

πŸ’‘ Hint: Think of the proteins that allow muscles to contract.

Question 2

True or False: Troponin masks the active sites on myosin.

  • True
  • False

πŸ’‘ Hint: Remember which protein interacts with actin.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Explain, in detail, how an action potential in a motor neuron leads to muscle contraction, incorporating calcium ions, troponin, and tropomyosin into your answer.

πŸ’‘ Hint: Work through the steps logically from neuron activation to muscle contraction.

Question 2

Design an experiment to demonstrate the effects of ATP depletion on muscle contraction, including predictions about what would happen to myosin-actin interactions.

πŸ’‘ Hint: Consider the role of ATP in the myosin head function.

Challenge and get performance evaluation