Question

Three important enzymes remove ammonia from body cells. One is carbamoyl phosphate synthestase I. The other two are:
a. branched-chain alpha-keto acid dehydrogenase and phenylalanine hydroxylase.
b. alanine aminotransferase and aspartate aminotransferase.
c. glutaminase and threonine dehydratase.
d. glutamate dehydrogenase and glutamine synthetase.

Answer

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