UNE biochem Unit 4 exam questions & answers 2024

UNE biochem Unit 4 exam questions & answers 2024 Ubiquitination is a means of targeting a protein for which of the following cellular processes? - ANSWER-Proteasomal degradation The reaction of ammonia with a-ketoglutarate is catalyzed by_______ and requires ________ as a reactant? - ANSWER-Glutamate dehydrogenase; NADH or NADPH Most enzymes involved in a protein digestion require cleavage for activation. These proteins are secreted as inactive protein forms called: - ANSWER-Zymogens The urea cycle takes place in which of the following sub cellular locations? - ANSWER-the cytosol and mitochondria Which of the following amino acids is considered non essential because its generated by the urea cycle? - ANSWER-arginine Which of the following enzymes is regulated by N-acteyl glutamate (NAGs)? - ANSWER-CPS I Which of the following enzymes is correctly paired with its activator? - ANSWER-N-acetylglutamate synthase; arginine Which of the following enzymes will be active in both the fed and fasted state? - ANSWER-Glutaminase Which of the following compounds stimulates the synthesis of N-acetylglutamate? - ANSWER-arginine Which of the following statements is consistent with nitrogen transport in the fasted state - ANSWER-Glutaminase will be active