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UNE Medical Biochemistry Exam 1 Questions and Answers 100% Pass
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UNE Medical Biochemistry Exam 1 Questions and Answers 100% Pass W4 Which of the following hormones is best described as anabolic? A) Epinephrine B) Insulin C) Cortisol D) Glucagon - Insulin Insulin is an anabolic hormone while all others listed are predominantly catabolic. T1 A 22-year ol...

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  • January 8, 2025
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  • 2024/2025
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UNE Medical Biochemistry Exam 1
Questions and Answers 100% Pass

W4


Which of the following hormones is best described as anabolic?




A) Epinephrine


B) Insulin


C) Cortisol


D) Glucagon - ✔✔Insulin




Insulin is an anabolic hormone while all others listed are predominantly catabolic.


T1


A 22-year old female presents to the emergency department with acute abdominal pain. She indicates the

pain came on rapidly in her mid-abdominal region. She has vomited several times over the last 4 hours. A

diagnosis of acute pancreatitis is made and she is rushed to surgery.




Elevation of which of the following serum enzymes would be consistent with this diagnosis?




EMILY CHARLENE © 2025, ALL RIGHTS RESERVED 1

,A) Lactate dehydrogenase


B) Amylase


C) Troponin


D) Creatine Kinase - ✔✔Amylase


T1


Which of the following best describes a protein domain?




A) Regions of a protein that have no specific function


B) A small grouping of secondary structures


C) A linker region between 2 α-helical structures


D) A section of a protein structure sufficient to form a particular chemical or physical task - ✔✔A section

of a protein structure sufficient to form a particular chemical or physical task


T1, Q1


An enzyme has a mutation within the substrate binding site that reduces the binding of the coenzyme

needed for covalent catalysis.




Which of the following is likely to result as a consequence of this mutation?




A) The enzyme will function normally


B) The enzyme will use an alternative coenzyme for the reaction




EMILY CHARLENE © 2025, ALL RIGHTS RESERVED 2

,C) The enzyme will no be able to form the transition state complex


D) The enzyme will not be able to bind substrate - ✔✔The enzyme will not be able to form the transition

state complex




*Loss of coenzyme binding will result in inability to form the transition substrate enzyme complex*


T1


A 55-year old man is brought to the emergency room with a chief complaint of chest pain and tingling in

his left arm.




Elevation of which of the following enzymes in circulation would be most indicative of a myocardial

infarction?




A) Amylase


B) Troponin


C) Lipase


D) Lactate Dehydrogenase - ✔✔Troponin


T1


Cleavage of fructose 1,6-biphosphate to dihydroxyacetone and glyceraldehyde 3-phosphate involves the

breaking of a carbon-carbon bond through a process other than oxidation or hydrolysis.




This is achieved by what class of enzymes?




EMILY CHARLENE © 2025, ALL RIGHTS RESERVED 3

, A) Lyase


B) Transferase


C) Hydrolase


D) Ligase - ✔✔Lyase




*Review the 6 classes of enzymes. Lyases cleave bonds between C-C, C-O, and C-N to generate double

bonds*


T1, Q1


Which of the following best describes the structure of heme?




A) An N-linked glycolysation


B) A nicotinamide structure that is readily oxidized


C) A negatively charged phosphate group


D) A planar polyphyrin ring that binds iron - ✔✔A planar polyphyrin ring that binds iron


T1


Which of the following best describes tertiary structure?




A) Interactions between single amino acids adjacent to one another


B) Interactions between α-helices and β sheets to form a domain




EMILY CHARLENE © 2025, ALL RIGHTS RESERVED 4

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