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MDCAT Practice Test - Practice Test - Biology - Support and Movement - 2026 Quiz

Attempt 10 MCQs on MDCAT Practice Test - Practice Test - Biology - Support and Movement (Year 2026) | Quiz 5

41. Which part of the myosin molecule forms cross-bridges?



42. Which elastic protein gives muscle its passive elasticity?



43. Which protein is defective in Duchenne muscular dystrophy?



44. Which receptors on the SR release calcium?



45. What protein actively transports Ca²⁺ into the SR?



46. Which protein buffers calcium inside the SR?



47. What is a motor neuron and all the muscle fibers it supplies called?



48. What is the specialized synapse between a motor neuron and muscle?



49. Which enzyme degrades acetylcholine?



50. What condition results from lack of ATP after death, causing muscles to stiffen?



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