IMAT Muscle contraction questions

Sample questions

1. 1IMAT 2025 Q16

   Muscle contraction is triggered by an increase in the concentration of calcium ions that bind to:
   1. Avimentin
   2. Bmyosin
   3. Ctropomyosin
   4. Dtroponin
   5. Eactin
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2. 2IMAT 2025 Q17

   Which of the following statements about myosin and actin is CORRECT?
   1. AThe binding of calcium to troponin is necessary for the dissociation of the actin-myosin complex.
   2. BActin has ATPase activity.
   3. CThe binding of ATP to the actin-myosin complex promotes the formation of the complex.
   4. DThe binding of ATP to the actin-myosin complex promotes the dissociation of the complex.
   5. ETropomyosin has ATPase activity.
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