oypes of mues i stri and contains gap juntio B. Skeletal C. Cardiac muncle D. Ar
ID: 133355 • Letter: O
Question
oypes of mues i stri and contains gap juntio B. Skeletal C. Cardiac muncle D. Areolar muscle E None of the above Which of the following isthe first ?occur in response to electrial timolatiod.mr mn A. Movement of tropomyosin B. Anachment of the cross-bridges to actin C. Release of calcium ions from sarcoplasmic reticulumn D. Splitting of ATP E. Sliding of myofilament 23. The role of tropomyosin in striated muscle contraction is to A. Actively transport calcium ions into the sarcoplasmic reticulum B. Bind the cakcium ions that initiate cross bridge activity C. Block the binding sites on actin to which the myosin cross bridges bin D. Break down creatine phosphate to provide the energy for ATP synthesis E. None of the above 24. Anacrobic respiration occurs mostly in A. Intermediate muscle fibers B. Red muscle fibers C. White muscle fiber D. Cardiac muscle fiber E None of the above 25. The action potentials spreads through the skeletal muscle fiber through the A. Terminal cisternac B. Sarcolemma C. Transverse tubules (T-tubules) D. Sarcoplasmic reticulum E. Perimysium 26. Which of the following statements is TRUE about contraction of smooth muscles? A. Calcium binds to Troponin B. Activated myosin light chain kinase causes cross-bridge activation and C. Calcium is not required for contraction of smooth muscles D. ATP is required for the detachment of the myosin heads from Actin E. None of the above statements are true contraction 27. The synapse between a skeletal muscle cell membrane and a somatic motor neuron is called A. Axodendritic synapse B. Electrical synapse C. Neuromuscular junction D. Sarconeural synapse E. Dendrodendritic synapseExplanation / Answer
x1. The muscle which is straited and has gap junction - cardiac muscle
2. First step is calcium ions release from sarcoplasmic reticulum
3. Action potential spreads through skeletal muscle fibre through sarcolemma
4. Synapse between skeletal muscle cell membrane and somatic motor neuron is called as neuromuscular junction
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