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106年 - 學士後西醫普通生物及生化概論106普通生物及生化概論#63684
> 試題詳解
26. Fatty acid synthesis uses which unit for each stepwise addition?
(A) Acetyl-CoA
(B) Malonyl-CoA
(C) Methylglutaryl-CoA
(D) Methylmalonyl-CoA
(E) Hydroxybutyryl-CoA
答案:
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統計:
A(28), B(93), C(1), D(3), E(0) #1629718
詳解 (共 1 筆)
艾爾
B1 · 2021/07/30
#4959954
(共 1 字,隱藏中)
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23. What is the direct product of pyruvate carboxylase? (A) Acetyl-CoA (B) Citrate (C) Lactate (D) Phosphoenolpyruvate (E) Oxaloacetate
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24. Which of the following enzymes of the citric acid cycle listed below results in the formation of a high energy phosphate compound? (A) Succinate dehydrogenase (B) Succinyl-CoA synthetase (C) Isocitrate dehydrogenase (D) Citrate synthase (E) α-Ketoglutarate dehydrogenase
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25. Which of the following amino acids is a key gluconeogenic amino acid that is synthesized in muscle by transamination of glucose-derived pyruvate, released into the bloodstream, and taken up by the liver? (A) Gly (B) Val (C) Ala (D) Leu (E) Pro
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27. Which compound represents the most highly concentrated form of stored biological energy? (A) Protein (B) Carbohydrate (C) Fatty acid (D) Nucleic Acid (E) Collagen
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28. What following amino acid residues in some proteins can be hydroxylated? (A) Serine (B) Tyrosine (C) Proline (D) Methionine (E) Glutamine
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29. What following compounds can enhance inorganic iron absorption from our meal? (A) Vitamin C (B) Vitamin A (C) Thiamine (D) Vitamin B12 (E) Vitamin B6
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30. If the isoelectric point (pI) of a protein is 5.8 at buffer pH=7.5, how is the protein electrically charged? (A) positively-charged (B) negatively-charged (C) electrically neutral (D) Not sure, depending on the size of the protein (E) Not sure, depending on the buffer composition
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31. Which structure is common to both gymnosperms and angiosperms? (A) stigma (B) carpel (C) ovule (D) ovary (E) anthers
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32. Which plant hormone is NOT correctly paired with its function? (A) auxin - promotes stem growth through cell elongation (B) cytokinins - initiate programmed cell death (C) gibberellins - stimulate seed germination (D) abscisic acid - promotes seed dormancy (E) ethylene - inhibits cell elongation
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