Exam 6: Protein

Choose the correct order of enzyme activities in protein digestion.

Which amino acid, when oxidized, spares the essential gluconeogenic precursors pyruvate and lactate?

What percentage of resting energy expenditure is attributed to protein synthesis and degradation?

Carbamoyl aspartate can only be used for _____ synthesis.

Which three amino acids cannot undergo transamination to an appreciable extent, making provision of their alpha-keto acids ineffective in lowering blood nitrogen concentrations in kidney disease patients?

When evaluating protein quality, which of the following measures represents the gain in body weight on a test protein divided by the grams of protein consumed?

Name the genetic disease associated with the lack of the liver enzyme necessary to convert phenylalanine to tyrosine.

When the diet is lacking in the amino acids lysine and threonine

Urea synthesis occurs partly in the mitochondria and partly in the cytosol of the _____.

What two major systems are used for protein degradation in most cells?

Purine degradation results in the formation of xanthine and creation of _____ by xanthine oxidase.

If you were deficient in vitamins B₆ and B₁₂ and had high blood levels of homocysteine, what dietary substance could remove some of the homocysteine by donating a methyl group to form methionine?

Which of the following is NOT a neurotransmitter?

Which of the following amino acids is ketogenic?

The product(s) of pepsin's action is/are _____.