[{"data":1,"prerenderedAt":48},["ShallowReactive",2],{"q-nurse-113-3-basic-medicine-011":3},{"subject":4,"subjectSlug":5,"subjectFullName":6,"question":7,"related":24},"基礎醫學","basic-medicine","基礎醫學(包括解剖學、生理學、病理學、藥理學、微生物學與免疫學)",{"id":8,"webId":9,"year":10,"session":11,"subject":4,"number":12,"stem":13,"options":14,"answer":19,"answerNote":20,"images":21,"explanation":22,"freq":23},"nurse-113-3-基礎醫學-011","nurse-113-3-basic-medicine-011",113,3,11,"在骨骼肌細胞（skeletal muscle cell）收縮過程中，產生力擊（power stroke）後，肌凝蛋白（myosin）會與 ①結合，並造成橫橋（cross-bridge）與肌動蛋白（actin）發生②的反應，下列①、②配對，何者正確？",{"A":15,"B":16,"C":17,"D":18},"①ATP，②連接","①ATP，②分離","①鈣離子，②連接","①鈣離子，②分離","B",null,[],"本題考點在於骨骼肌收縮的橫橋循環(cross-bridge cycle)中 ATP 的角色。力擊(power stroke)完成後,肌凝蛋白頭部仍緊附在肌動蛋白上(僵直態),此時必須有新的 ATP 結合到肌凝蛋白頭部,才能使橫橋與肌動蛋白「分離」,故①為 ATP、②為分離,選 B。ATP 隨後被水解為 ADP＋Pi,使頭部重新翹起(recocking)進入下一循環。C、D 把①填為鈣離子皆錯:鈣離子的作用是與旋轉素(troponin)結合、移開旋轉肌動蛋白(tropomyosin)以暴露結合位點,啟動收縮,並不直接使橫橋鬆脫。A 雖正確填 ATP 卻把②寫成「連接」,方向相反,因 ATP 一結合是造成分離而非連接。抓住「無 ATP 則橫橋鬆不開」即可判斷。",1,[25,29,33,36,40,44],{"webId":26,"stem":27,"number":23,"year":28,"session":23},"nurse-106-1-basic-medicine-001","下列有關表皮的敘述，何者正確？",106,{"webId":30,"stem":31,"number":32,"year":28,"session":23},"nurse-106-1-basic-medicine-002","下列何者在組織學特徵上可區分為絲球帶（zona glomerulosa）、束狀帶（zona fasciculata）、網狀帶（zona reticularis）？",2,{"webId":34,"stem":35,"number":11,"year":28,"session":23},"nurse-106-1-basic-medicine-003","顴弓（zygomatic arch）是由顴骨與下列何者共同組成？",{"webId":37,"stem":38,"number":39,"year":28,"session":23},"nurse-106-1-basic-medicine-004","下列何者參與形成踝關節？",4,{"webId":41,"stem":42,"number":43,"year":28,"session":23},"nurse-106-1-basic-medicine-005","下列何者是維持背部直立最重要的肌肉？",5,{"webId":45,"stem":46,"number":47,"year":28,"session":23},"nurse-106-1-basic-medicine-006","行走於前臂的內側，並與上臂深層的靜脈會合成腋靜脈的是那一條血管？",6,1783840771453]