PROTEINS
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Questions and Answers

Which of the following biomolecules is classified as a monosaccharide?

  • Proteins
  • Nucleic acids
  • Amino acids
  • Carbohydrates (correct)

Which amino acid is considered achiral?

  • Valine
  • Phenylalanine
  • Glycine (correct)
  • Leucine

Which amino acid is known to be dominant in terms of its amphiprotic nature?

  • Tryptophan
  • Isoleucine
  • Glycine (correct)
  • Proline

Which amino acid is a branched chain alkyl group?

<p>Methionine (A)</p> Signup and view all the answers

Which test is specific for detecting the presence of aromatic amino acids?

<p>Xanthoproteic test (D)</p> Signup and view all the answers

Which amino acid is involved in disulfide bond formation?

<p>Cysteine (B)</p> Signup and view all the answers

What is the metabolic fate of arginine?

<p>Both glucogenic and ketogenic (C)</p> Signup and view all the answers

What is the pH range for lysine, glutamic acid, and arginine?

<p>2.1-4.1 (A)</p> Signup and view all the answers

Which reagent is used to cleave the N-terminal amino acid in a protein sequence?

<p>Edman reagent (C)</p> Signup and view all the answers

Which type of bond characterizes the local folding of amino acids into helices and sheets?

<p>Hydrogen bond (A)</p> Signup and view all the answers

At extreme pH or in the presence of other chemicals, which amino acids are most susceptible to denaturation?

<p>Nonpolar amino acids (C)</p> Signup and view all the answers

How many classifications of proteins are based on shape?

<p>2 (B)</p> Signup and view all the answers

What is the function of enzymes as biological catalysts?

<p>Substrate to product binding (C)</p> Signup and view all the answers

What is the major theory regarding enzyme-substrate interaction?

<p>Lock and key (B)</p> Signup and view all the answers

In the enzyme kinetics equation, what does VMAX represent?

<p>Maximum rate of reaction (A)</p> Signup and view all the answers

What classification system is used to categorize enzymes?

<p>EC system (D)</p> Signup and view all the answers

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