Which statement about mammalian glycogen synthase is NOT correct（）
A. It is especially predominant in liver and muscle
B. The donor molecule is a sugar nucleotide
C. The phosphorylated form of this enzyme is active
D. This enzyme adds the initial glucose unit to a tyrosine residue in glycogenin
查看答案
Which statement is TRUE of glycogen synthase（）
Activation of the enzyme involves a phosphorylation
B. It catalyzes addition of glucose residues to the nonreducing end of a glycogen chain by formation of （α1 -4） bonds
C. It uses glucose-6-phosphate as donor of glucose units
D. The enzyme has measurable activity only in liver
Which enzymatic activity would be decreased by thiamine deficiency（）
A. α-ketoglutarate dehydrogenase complex
B. isocitrate dehydrogenase
C. malate dehydrogenase
D. fumarase
Which compound（s） is/are a high-energy intermediate（s） in glycolysis（）
A. fructose 1,6-bisphosphate
B. NADH
C. 1,3-bisphosphoglycerate and phosphoenol pyruvate
D. fructose 1,6-bisphosphate, 1,3-bisphosphoglycerate, and phosphoenol pyruvate
Which statement about the pentose phosphate pathway is CORRECT（）
A. It generates 36 mol of ATP per mole of glucose consumed
B. It is a reductive pathway; it consumes NADH
C. It is present in plants, but not in animals
D. It provides precursors for the synthesis of nucleotides
微信支付 
支付宝支付