DrVirgo
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3. In the biosynthesis of glucose from pyruvate by the liver, the first intermediate formed from pyruvate is
A) acetyl CoA
B) alanine
C) lactate
D) methylmalonyl CoA
E) oxaloacetate
6. Amino acids that contribute at least one nitrogen or carbon to the purine ring during the biosynthesis of purine nucleotides are
A) alanine, asparagine, and lysine
B) alanine, methionine, and histidine
C) aspartate, arginine, and histidine
D) aspartate, glycine, and glutamine
E) glycine, serine, and tyrosine
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| sarika
Forum Guru
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3.E
6.D
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| nadiabarati
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3.E
6.C
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| nadiabarati
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E
D
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| DrVirgo
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Can anyone explain the second q? thanks.
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| nadiabarati
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check FA biochemistry where shows Glycine produce part of purine ring. Actually the first page of FA biochem
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| guest007
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CHECK KAPLAN FOR SECOND QUESTION.....ANSWER IS d
FOR FIRST ONE I FEEL THE ANSWER IS ACETYL CO A.
ROBIN082006 WHAT DO U SAY?
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| robin082006
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3.E
6. D
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| guest007
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yeah got it....it was a silly misunderstanding..thanks robin.
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| mjl1717
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that first enzyme is pyruvate carboxylase??
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| study_ing
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yes
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