Biochemistry Quiz: Amino Acids and Metabolism

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12 Questions

Which amino acid can be formed by hydroxylation of phenylalanine?

Tyrosine

Elevated homocysteine levels in the blood can be associated with a deficiency in which vitamin?

Vitamin B12

Which enzyme deficiency would have the greatest effect on protein digestion?

Trypsin

Which amino acid metabolism reduction can lead to elevated homocysteine levels?

Methionine

Which of the following is NOT part of the catecholamines family derived from tyrosine?

Cortisol

Which citric acid cycle intermediate can participate in Heme Biosynthesis?

Citrate

Which of the following is NOT a function of glycoproteins?

Serving as antibodies

In the urea cycle, which molecule is formed from citrulline when combined with aspartate?

Arginine

Which of the following best represents the function of argininosuccinate synthase in the urea cycle?

Cleavage of argininosuccinate to fumarate and arginine

Which of the following is true about DNA polymerases in DNA synthesis?

They require an RNA primer for DNA synthesis

Which of the following statements about hemoglobin is correct?

It contains iron linked to heme through cysteine

Regarding heme catabolism, which process is involved in breaking down the porphyrin ring?

Oxidative cleavage

Test your knowledge on amino acids and metabolism with this quiz. Questions cover topics such as bile acids, uric acid excretion, amino acid synthesis, and phenylalanine hydroxylation. Challenge yourself and see how well you understand these biochemical processes!

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