48. Most of the ATP supplies for a skeletal muscle undergoing prolonged exercise come from________. (A) glucose metabolized by aerobic respiration (B) glycolysis (C) tropomyosin binding to calcium (D) the transfer of a phosphate group from creatine phosphate

48. Most of the ATP supplies for a skeletal muscle undergoing prolonged exercise come from________.
(A) glucose metabolized by aerobic respiration
(B) glycolysis
(C) tropomyosin binding to calcium
(D) the transfer of a phosphate group from creatine phosphate

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統計： A(1), B(1), C(0), D(0), E(0) #3162520

詳解 (共 1 筆)

B1 · 2024/05/15

#6098456

磷酸肌酸系統（亦即ATP-PC 系統）就具有供能總量少、持續時間短、輸出功率最快，不產生乳酸、不需要氧氣參與的特點

45. Retinoic acid, a metabolite of vitamin A, plays a key role in vertebrate development, differentiation, and organogenesis. Retinoic acid normally binds to the RAR receptor to initiate changes in gene expression. Researchers have determined that one type of RAR receptor is found at high levels in muscles, but is not found at all in neurons. How can you explain these findings? (A) Muscle cells, but not neurons, contain the gene for the RAR receptor. (B) The RAR receptor gene is expressed in muscle cells but not neurons. (C) Neurons can produce retinoic acid, so they do not need RARs for development. (D) RAR transcripts are hydrolyzed by lysosomes in neurons but not in muscle cells.

48. Most of the ATP supplies for a skeletal muscle undergoing prolonged exercise come from________. (A) glucose metabolized by aerobic respiration (B) glycolysis (C) tropomyosin binding to calcium (D) the transfer of a phosphate group from creatine phosphate

詳解 (共 1 筆)

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48. Most of the ATP supplies for a skeletal muscle undergoing prolonged exercise come from________.
(A) glucose metabolized by aerobic respiration
(B) glycolysis
(C) tropomyosin binding to calcium
(D) the transfer of a phosphate group from creatine phosphate