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单选题 The rate-limiting enzyme for heme synthesis is
学科：血液与免疫系统疾病
时间：2025-06-10 14:07:18
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题目1单选题
Which is correct about 2,3-BPGA. Increase the affinity of hemoglobin for oxygenB. With a large amount of the positive chargeC. Phosphatase is required to generate the 2,3-BPGD. Form covalent bond with the α subunit of hemoglobinE. When pH increase, the concentration of 2,3-BPG decreases
题目2单选题
Which is wrong about the metabolic characteristics of mature erythrocyteA. Have no organellesB. Heme can be synthesizedC. Unable to synthesize fatty acids de novoD. 2,3-BPG can regulate the oxygen-transporting function of hemoglobinE. Energy is obtained mainly from glycolysis
题目3单选题
The rate-limiting enzyme for heme synthesis isA. ALA anhydraseB. ALA dehydrogenaseC. ALA oxidaseD. ALA reductaseE. ALA synthase
题目4单选题
Which protein has heme as the prosthetic groupA. cytochromeB. iron chelating enzymeC. ALA synthaseD. ALA anhydraseE. Porphyrin reductase
题目5单选题
Which vitamin could affect heme synthesisA. Vitamin B6B. Vitamin CC. Vitamin B12D. Vitamin EE. Vitamin A
题目6单选题
Erythropoietin (EPO) could promoteA. the absorb of vitaminB. the release of mature erythrocyte into bloodC. the release of androgenD. the absorb of Fe2+E. proliferation and differentiation of late-stage erythroid progenitors
题目7单选题
In the synthesis of heme, which amino acid could directly participate inA. TyrosineB. ValineC. IsoleucineD. GlutamateE. Glycine
题目8单选题
In the electrophoresis of blood protein, the slowest protein isA. γ-globulinB. α1-globulinC. β-globulinD. AlbuminE. α1-globulin
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