Amino Acids and Protein Synthesis Quiz

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Questions and Answers

What is the classification of amino acids based on their ability to be synthesized by the body?

  • Hydrophobic, hydrophilic, and amphoteric
  • Essential, semi-essential, and non-essential (correct)
  • Branched-chain, aromatic, and aliphatic
  • Basic, acidic, and neutral

What type of bond forms during the synthesis of proteins between amino acids?

  • Disulfide bond
  • Peptide bond (correct)
  • Ionic bond
  • Hydrogen bond

Which amino acids are classified as essential and must be obtained from the diet?

  • Valine and Glutamate
  • Leucine and Tryptophan (correct)
  • Aspartic acid and Serine
  • Arginine and Histidine

What is the molecular weight threshold generally used to define a protein?

<p>50 or more amino acids (D)</p> Signup and view all the answers

Which of the following options describes the function of glutathione?

<p>Antioxidant and coenzyme activity (B)</p> Signup and view all the answers

Which amino acid is NOT considered essential for adults?

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

What reaction is primarily responsible for forming peptide bonds?

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

How many amino acids make up the hormone glucagon?

<p>29 amino acids (C)</p> Signup and view all the answers

Which group of amino acids includes those synthesized in amounts sufficient for adults but not for growing children?

<p>Semi-essential amino acids (C)</p> Signup and view all the answers

What defines oligopeptides in comparison to polypeptides?

<p>Contain 2 to 10 amino acids (B)</p> Signup and view all the answers

Flashcards

Amino Acids

Organic compounds crucial for protein synthesis, having both acidic and basic properties.

Essential Amino Acids

Amino acids the body cannot produce, requiring dietary intake.

Peptide Bond

Covalent bond linking amino acids in a protein chain.

Protein

Large organic molecules composed of chains of amino acids.

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Glutathione

Tripeptide (3 amino acids) with antioxidant and transport functions.

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Glucagon

Peptide hormone increasing blood sugar levels.

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Insulin

Protein hormone lowering blood sugar levels.

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Amphoteric compound

A compound that can act as both an acid and a base.

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Non-essential amino acid

Amino acid synthesized by the body in sufficient amounts.

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Semi-essential amino acids

Amino acids synthesized in sufficient amounts for adults, but not for growing children.

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Related Documents

Biochemistry 1 Lecture 4 PDF

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