Proteins and Amino Acids

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Questions and Answers

Which amino acid is conditionally essential when the body fails to supply enough phenylalanine?

  • Threonine
  • Tyrosine (correct)
  • Methionine
  • Tryptophan

Which part of the protein molecule determines its size, shape, and electrical charge?

  • Carboxylic acid
  • Side chain (correct)
  • Hydrogen atoms
  • Amine group

Which organ denatures protein and cleaves peptide bonds with the help of gastric acid and pepsin?

  • Small intestine
  • Liver
  • Pancreas
  • Stomach (correct)

Which amino acid is a component of epinephrine and norepinephrine, and is involved in the production of melanin and thyroxine?

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

Which type of protein is responsible for maintaining fluid and electrolyte balance in the body?

<p>Transport proteins (D)</p> Signup and view all the answers

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