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UNE FINAL BIOCHEM LATEST EXAM!! What are the main products of beta oxidation? 1 NADH, 1 FADH, 1 Acetyl CoA So in the case of an 11-year-old girl brought to the emergency department by her father, he's reporting that she's been very thirsty and needing to make frequent strips to the bathroom. Today, she reported lightheadedness during a soccer game and symptoms did not resolve after drinking a power beverage. A rapid dipstick test revealed glucose in her urine and further diagnosis are con...

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8 pages

Written in 2023/2024

Grade A+

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Unit 3 UNE Biochem Test Questions & Answers Already Scored A+ 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 The process of ketogenesis refers to the conversion of acetyl CoA to which of the following compounds? D-3-hydroxybutyrate or beta hydroxybutyrate Under fasting conditions, elevated glucagon will activate which of the follow...

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3 pages

Written in 2023/2024

Grade A+

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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...

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5 pages

Written in 2023/2024

Grade A+

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UNE biochem Unit 1 Test Questions And Answers. Allopurinol is an inhibitor of Xanthine Oxidase. Addition of this compound will result in a decrease in what compound? Uric Acid DNA replication occurs during which phase of the cell cycle? S phase The affinity for DNA and histones within a chromosome can be increased by which of the following histone modifications? Deaceytlation DNA replication on both the leading and the lagging strand proceeds in the 5' to 3' direction. The remaining o...

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3 pages

Written in 2023/2024

Grade A+

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UNE Biochem Final Exam 2023/2024 A 3-year-old male is brought to the emergency department by his parents. He is unconscious on admittance and his blood glucose was 15 mg/dl, ( normal 75 - 105 mg/dl). Further testing showed this individual had a deficiency in carnitine. Based on this diagnosis you would also expect which of the following to be true with regards to metabolism: This patient would have elevated levels of circulating free fatty acids. A 7-year old female is recently diagnosed wi...

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11 pages

Written in 2023/2024

Grade A+

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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...

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4 pages

Written in 2023/2024

Grade A+

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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...

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5 pages

Written in 2023/2024

Grade A+

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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...

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14 pages

Written in 2023/2024

Grade A+

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Under fasting conditions (ratio of insulin: glucagon <1), elevated glucagon will activate which of the following enzymes? hormone sensitive lipase Ketonuria, hypoglycemia, and severe acidosis are prime diagnostic indicators of the presentation of type 1 diabetic ketoacidosis. Which of the following compounds are "ketone bodies" that would be elevated in serum of urine of a patient in this condition? D-3-hydroxybutyrate and acetoacetate What is the purpose of cholesterol este...

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10 pages

Written in 2023/2024

Grade A+

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Allosteric activators of hemoglobin will increase substrate binding through which of the following mechanisms? Binding the protein and keeping it in the R conformation. Allosteric activators of hemoglobin stabilize the R state, allowing increased affinity for oxygen and rapid saturation. The R-group on valine does not have an active group to participate in covalent catalysis. Which amino acids most commonly participate in covalent catalysis cysteine, serine, and histidine Which o...

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7 pages

Written in 2023/2024

Grade A+

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Transketolase Transaldolase is responsible for the transfer of 3 carbon units between sugars in the non-oxidative portion of the pentose phosphate pathway. Transketolase is responsible for the transfer of 2 carbon units between sugars in the non-oxidative portion of the pentose phosphate pathway. In the non-oxidative portion of the pentose phosphate pathway, 2-carbon fragments of keto-sugars can be transferred to other sugars to generate a larger sugar molecule. This reaction is catalyzed by...

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3 pages

Written in 2023/2024

Grade A+

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Under low energy conditions, AMP will bind to phosphofructokinase I and glycogen phosphorylase at site unique to the active site. This enhances the activity of these enzymes. This is an example of which of the follow types of enzyme regulation? Allosteric activation An example of enzyme activation by cleavage is best illustrated by which of the following? Activation of chymotrypsinogen to chymotrypsin Children with cystinosis have growth delay and both renal and ocular issues due...

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12 pages

Written in 2023/2024

Grade A+

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A 19-year-old boy is diagnosed with Creutzfeldt-Jakob disease which is caused by the introduction of an amyloid fold in the disease-causing protein. The introduction of this fold causes the protein to transition from a primarily alpha helical structure to an aggregate of mostly beta sheets. This change in protein structure (leading to disease) is best attributed to changes in which of the following? folding of the secondary structures Which of the following is the best description of pri...

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11 pages

Written in 2023/2024

Grade A+

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-3 A series of reactions have the following ΔG. A + B --> C ΔG = -1 C + D --> E ΔG = +3 E + F --> G ΔG = -5 The overall ΔG for this series of reactions is determined to be which of the following values? ΔG0 would be negative What is consistent with an exergonic reaction? Increase oxygen consumption Dinitrophenol is an uncoupler of the electron transport chain. The addition of dinitrophenol will have which of the following impacts? NADH → compl...

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4 pages

Written in 2023/2024

Grade A

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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 regulated in the cell. Which of the following proteins targets t...

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14 pages

Written in 2023/2024

Grade A

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