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Biochemistry

Study Pack

Set 21 Metabolism Of Nitogenous Compounds Ii Amino Acidsporphyrinsand Neurotransmitters

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Question 1

(Multiple Choice)

Free
Which of the following is a role of spermine and spermidine,the polyamines derived from glutamate?

A)stabilization of tRNA duplex structure
B)neutralization of DNA negative charge
C)stabilization of double stranded DNA
D)stabilization of bacterial membranes
E)all of the above

Answer

Question 2

(Multiple Choice)

Free
In animals,all nitrogen and carbon of heme groups comes from the reaction of the amino acid ________ and _________.

A)glutamate;malonyl-CoA
B)aspartate;acetyl-CoA
C)asparagine;propionyl-CoA
D)glycine;succinyl-CoA
E)alanine;methylmalonyl-CoA

Answer

Question 3

(Multiple Choice)

Free
Which of the following amino acids is derived from a glycolytic intermediate?

A)aspartate
B)threonine
C)proline
D)arginine
E)serine

Answer