METABOLISM OF PROTEINS - MIDTERM BIOCHEM LECTURE REVIEW QUIZ

What enzymes are involved in transamination?

• aminotransferases

• transaminases

• pyridoxal phosphate

• all of the choices

The end product of many transamination reactions that

undergoes oxidative deamination.

• a-ketoglutarate

• urea

• glutamate

• pyruvate

Which one of these amino acids is NOT synthesized from

pyruvate?

• Isoleucine

• Leucine

• Alanine

• Valine

Refers to the reconstruction of a protein or nucleic acid to

their original form.

• amino acid synthesis

• renaturation

• protein synthesis

• denaturation

Break down proteins into polypeptides.

• lipase

• amylase

• pepsin

• transaminase

Synthesized by the transamination of oxaloacetate.

• alanine

• aspartate

• glutamate

• pyruvate

It is the molecule that is removed during deamination.

• a-ketoglutarate

• glutamate

• ammonia

• carboxylic acid

The release of ammonium via a conversion of glutamate to

α-ketoglutarate.

• transamination

• oxidative deamination

• oxidative phosphorylation

• transdeamination

Synthesized by the hydroxylation of phenylalanine.

• glutamate

• tyrosine

• arginine

• proline

The final acceptor of the amino group during

transamination.

• a-ketoglutarate

• oxaloacetate

• pyruvate

• glutamate