UNE Medical Biochem

UNE Medical Biochem Final Exam Questions With Solved Answers Scored A+ The cellular uptake of LDL increase intracellular cholesterol levels. This has which of the following impacts on de novo cholesterol synthesis? Increases degradation of HMG-CoA reductase Dietary cholesterol is primarily transported in the body by which of the following lipoproteins? Chylomicrons. Cholesterol and TG from diet are transported from intestine to liver via chylomicrons. The LDL receptor is also highly re...

UNE medical biochem FINAL |108 Questions | With Complete Solutions. Which of the following urea cycle enzymes catalyzes the reaction hydrolyzing the release of urea from arginine? Arginase Arginase releases urea from arginine through a hydrolytic cleavage. Which of the following enzymes is likely to be active in both the fed and fasted states? Glutaminase Glutaminase in the liver is responsible for freeing ammonia from glutamine. In the fasted state, glutamine will be in excess due t...

UNE Medical Biochem Final Exam Review Rated 100% Correct!! short chain fatty acids and medium chain fatty acids enter mitochondria by: Diffusion Under fasting conditions (ratio of insulin to glucagon <1), elevated glucagon will activate which of the following enzymes? Hormone sensitive lipase the process of ketogenesis refers to the conversion of acetyl-CoA to which of the following compounds? B-hydroxybutyrate A well, 2-year-old female presents to the clinic with symptoms of a viral...

UNE Medical Biochem Final Exam Questions With Solved Answers Scored A+ The cellular uptake of LDL increase intracellular cholesterol levels. This has which of the following impacts on de novo cholesterol synthesis? Increases degradation of HMG-CoA reductase Dietary cholesterol is primarily transported in the body by which of the following lipoproteins? Chylomicrons. Cholesterol and TG from diet are transported from intestine to liver via chylomicrons. The LDL receptor is also highly re...

UNE biochem Unit 4 Exam |50 Questions| All Passed!! Ubiquitination is a means of targeting a protein for which of the following cellular processes? Proteasomal degradation The reaction of ammonia with a-ketoglutarate is catalyzed by_______ and requires ________ as a reactant? 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: Zymogens The urea cycle takes place...

UNE Biochem Midterm Questions With Actual Answers. Changes in the physiological variables listed below can alter the affinity of hemoglobin for oxygen. Which of the following will lower the affinity of hemoglobin for oxygen? increase 2,3 biphosphoglycerate (BPG) Allosteric activators of hemoglobin will increase substrate binding through which of the following mechanisms? Binding the protein, and keeping it in the "R" conformation Which of the following is the best description of primary...

UNE Biochem Unit 2 Exam Quizzes & Answers Glycolysis provides intermediates that can be used to make other necessary substrates. One example of this is the direct conversion of pyruvate to which of the following amino acids? a. proline b. threonine c. glutamate d. alanine alanine Which of the following best describes the net effect of the 8 steps of the TCA cycle? a. this process completely oxidizes an acetyl group to carbon dioxide b. this process directly converts pyruvate to succin...

UNE Biochem FINAL |83 Questions| With 100% Verified & Passed Solutions. An individual goes to bed around 8 pm and doesn't wake up until 9 am the next morning. During this time, which of the following is the primary oxidizable substrate in the skeletal muscle? Free fatty acids Under fasted conditions as described above, the skeletal muscle and liver would be oxidizing free fatty acids as a means of producing ATP. A well, 2-year-old girl presents to the clinic with symptoms of a viral ill...