GOB Chemistry
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Which of the following statement/s is/are true?
I. Nitrogen from amino acids is directly converted into ammonia and stored in the body.
II. Amino acids can be converted into intermediates of the citric acid cycle for energy production.
III. The amino group from amino acids is converted to urea in the liver and excreted in the urine.
IV. Amino acids are primarily catabolized in muscle tissue, where they are stored for later use.
Which of the following statements regarding TCA cycle intermediates serving as precursors to amino acids is/are true?
I. Malate is directly used to synthesize the amino acid aspartate.
II. Succinate is a precursor for the synthesis of glutamine.
III. Oxaloacetate is used to synthesize serine.
IV. α-Ketoglutarate is a precursor for the synthesis of glutamate.