What is the function of calcium in muscle contractions? to bind to troponin and change its interaction with tropomyosin to alter membrane potential causing a depolarization to bind to myosin and allow it to attach to tropomyosin to release ADP from myosin

Human Anatomy & Physiology (11th Edition)
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ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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**Title: The Role of Calcium in Muscle Contractions**

**Question:** What is the function of calcium in muscle contractions?

**Options:**
1. to bind to troponin and change its interaction with tropomyosin
2. to alter membrane potential causing a depolarization
3. to bind to myosin and allow it to attach to tropomyosin
4. to release ADP from myosin

**Explanation:**
This question explores the critical role of calcium ions in the process of muscle contraction. Understanding this function is essential for comprehending how muscles are activated and how they contract at the molecular level. Each option provides a distinct potential function that calcium may have within muscle physiology.
Transcribed Image Text:**Title: The Role of Calcium in Muscle Contractions** **Question:** What is the function of calcium in muscle contractions? **Options:** 1. to bind to troponin and change its interaction with tropomyosin 2. to alter membrane potential causing a depolarization 3. to bind to myosin and allow it to attach to tropomyosin 4. to release ADP from myosin **Explanation:** This question explores the critical role of calcium ions in the process of muscle contraction. Understanding this function is essential for comprehending how muscles are activated and how they contract at the molecular level. Each option provides a distinct potential function that calcium may have within muscle physiology.
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