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Biochemistry Midterm (Units 1 & 2) Exam Questions and Answers 100% Pass | Graded A+ $9.49   Add to cart

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Biochemistry Midterm (Units 1 & 2) Exam Questions and Answers 100% Pass | Graded A+

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Biochemistry Midterm (Units 1 & 2) Exam Questions and Answers 100% Pass | Graded A+ Troponin - A 55-year-old male is brought to the emergency department with a chief concern of chest pain and tingling in his left arm. Elevation of which of the following enzymes in circulation would be most ind...

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  • September 15, 2024
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Biochemistry Midterm (Units 1 & 2)

Exam Questions and Answers 100%

Pass | Graded A+


Troponin - ✔✔A 55-year-old male is brought to the emergency department

with a chief concern 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?



- Lipase

- Lactate dehydrogenase

- Amylase

- Troponin

An arrangement of β-strands connected by α-helices (βαβαβ) -

✔✔Domains are common structural elements that retain a particular

function within the protein. Which of the following is an example of a protein

domain?

,- A single α-helix

- A prosthetic group - such as heme

- An arrangement of β-strands connected by α-helices (βαβαβ)

- Irregular coils and loops

Monomeric, tetrameric - ✔✔Myoglobin is a _____ protein. Hemoglobin is a

_____ protein.



- Monomeric, tetrameric

- Monomeric, monomeric

- Tetrameric, tetrameric

- Tetrameric, monomeric

Amylase - ✔✔A 22-year old female presents to the emergency room 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. Elevation of which of the following

serum enzymes would be consistent with this diagnosis?



- Amylase

- Troponin

- Creatine kinase

,- Lactate dehydrogenase

NADH - ✔✔Which of the following cofactors or coenzymes would not

typically participate in an activation transfer reaction?



- Pyridoxal phosphate (PLP)

- Thiamine pyrophosphate

- Coenzyme A

- NADH

- Biotin

Binding the enzyme, and keeping it in the "T" conformation - ✔✔Allosteric

inhibitors of hemoglobin will decrease enzyme activity (oxygen binding)

through which of the following mechanisms?



- Binding the enzyme, and keeping it in the "T" conformation

- Binding the enzyme, and keeping it in the "R" conformation

- Binding the enzyme and enhancing Vmax

- Binding the enzyme in "T" conformation and displacing an activator

Secondary structure of the protein - ✔✔An α-helical arrangement of amino

acids is considered to be part of what level of protein structure?

, - Secondary structure of the protein

- Tertiary structure of the protein

- Quaternary structure of the protein

- Primary structure of the protein

Valine - ✔✔Covalent catalysis is used by many enzymes to cleave peptide

bonds. Which of the following amino acids would not facilitate this type of

catalysis? (Think of the structure of the R-group of these amino acids)



- Histidine

- Valine

- Cysteine

- Serine

Water - ✔✔Phosphorylation by a kinase requires each of the following

except:



- ATP

- Threonine

- Mg2+

- Water

- Serine

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