AA Resit

Which of the following amino acids is classified as a branched-chain amino acid (BCAA)?

• Glutamate

• Lysine

• Leucine

• Serine

• Arginine

Which metabolic process builds molecules and typically requires energy input?

• Catabolism

• Gluconeogenesis

• Glycolysis

• Anabolism

• Beta-oxidation

What is the function of glutamate dehydrogenase in amino acid metabolism?

• Formation of urea

• Incorporation of ammonia into glutamine

• Catalyzes oxidative deamination of glutamate

• Transport of amino acids

• Decarboxylation of aspartate

Which amino acid is both ketogenic and produces acetyl-CoA?

• Valine

• Isoleucine

• Leucine

• Aspartate

• Glutamine

In transamination, what is the common amino group acceptor?

• Glutamate

• α-ketoglutarate

• Pyruvate

• Alanine

• Aspartate

What is the role of ALT (alanine aminotransferase) in amino acid metabolism?

• Converts glutamate to urea

• Transfers amino group to pyruvate to form alanine

• Breaks down alanine into acetyl-CoA

• Produces ammonia from alanine

• Decarboxylates alanine

Which two amino acids do not undergo transamination?

• Glycine and Serine

• Lysine and Threonine

• Valine and Histidine

• Asparagine and Glutamate

• Phenylalanine and Tyrosine

Which enzyme directly incorporates NH₄⁺ into glutamate during reductive amination?

• Glutamine synthetase

• Aminotransferase

• Glutamate dehydrogenase

• Urease

• Deaminase

Which amino acid is the product of amidation of glutamate?

• Glutamine

• Aspartate

• Alanine

• Glycine

• Histidine

Which vitamin is required by aminotransferase enzymes?

• Vitamin B1

• Vitamin B2

• Vitamin B3

• Vitamin B6

• Vitamin C