Seed Storage Proteins and Protein Functions Quiz

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Questions and Answers

What is the function of enzymatic proteins in the cell?

  • Selective acceleration of chemical reactions (correct)
  • Transport of substances
  • Storage of amino acids
  • Protection against disease

Which protein is responsible for protection against disease?

  • Casein
  • Digestive enzymes
  • Hemoglobin
  • Antibodies (correct)

What is the main function of storage proteins in the cell?

  • Transport of substances
  • Selective acceleration of chemical reactions
  • Storage of amino acids (correct)
  • Protection against disease

Which protein transports oxygen from the lungs to other parts of the body?

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

Which type of protein is ovalbumin?

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

What is the function of insulin in the body?

<p>To regulate blood sugar concentration (A)</p> Signup and view all the answers

Which protein is responsible for muscle contraction?

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

What is the function of receptor proteins?

<p>Coordinate an organism's activities (C)</p> Signup and view all the answers

Which type of amino acids have hydrophobic side chains?

<p>Alanine, Methionine, Isoleucine (C)</p> Signup and view all the answers

At what pH level would the Aspartic acid side chain be negatively charged?

<p>pH 10 (D)</p> Signup and view all the answers

What is the primary structure of a protein?

<p>A linear sequence of amino acids held together by peptide bonds (A)</p> Signup and view all the answers

Which amino acid is commonly involved in forming disulfide bonds in proteins?

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

What feature gives a polypeptide its directionality?

<p>Linear sequence of amino acids (B)</p> Signup and view all the answers

Which amino acid is classified as hydrophilic?

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

What is the secondary structure of a protein characterized by?

<p>Stabilization by hydrogen bonds between the carbonyl and amino groups (A)</p> Signup and view all the answers

Which protein structure level involves the interactions between amino acid side chains/R groups?

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

At what pH level would the Lysine side chain be positively charged?

<p>pH 10 (C)</p> Signup and view all the answers

Which type of amino acids are negatively charged at pH 7?

<p>Glutamic acid, Aspartic acid, Lysine (B)</p> Signup and view all the answers

Which amino acid has a unique sulfur-containing side chain that can form disulfide bonds?

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

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