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Questions and Answers
Which type of protein is insoluble in water and physically tough?
Which type of protein is insoluble in water and physically tough?
- Globular protein
- Simple protein
- Derived protein
- Fibrous protein (correct)
What is the composition of simple proteins?
What is the composition of simple proteins?
- Amino acids and non-protein components
- Only amino acids (correct)
- Amino acids and fatty acids
- Only non-protein components
Which level of organization describes the sequence of amino acids joined together by peptide bonds?
Which level of organization describes the sequence of amino acids joined together by peptide bonds?
- Quaternary
- Primary (correct)
- Secondary
- Tertiary
Which level of organization describes the 3D shape adopted by the entire peptide chain?
Which level of organization describes the 3D shape adopted by the entire peptide chain?
What type of bonds are formed by joining amino acids in proteins?
What type of bonds are formed by joining amino acids in proteins?
Which type of protein is usually water soluble and has dynamic functions?
Which type of protein is usually water soluble and has dynamic functions?
What is the non-protein component in conjugated proteins?
What is the non-protein component in conjugated proteins?
Which level of organization describes the 3D arrangement of localized regions of a protein?
Which level of organization describes the 3D arrangement of localized regions of a protein?
Which level of organization describes the shape adopted when two or more folded polypeptide chains come together into one complex?
Which level of organization describes the shape adopted when two or more folded polypeptide chains come together into one complex?
What are derived proteins formed from?
What are derived proteins formed from?
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Study Notes
Protein Characteristics
- Fibrous proteins are insoluble in water and physically tough.
Simple Protein Composition
- Simple proteins are composed of amino acids only.
Levels of Protein Organization
- Primary structure: the sequence of amino acids joined together by peptide bonds.
- Tertiary structure: the 3D shape adopted by the entire peptide chain.
- Secondary structure: the 3D arrangement of localized regions of a protein.
- Quaternary structure: the shape adopted when two or more folded polypeptide chains come together into one complex.
Protein Bonding
- Peptide bonds are formed by joining amino acids in proteins.
Protein Types
- Globular proteins are usually water-soluble and have dynamic functions.
Conjugated Proteins
- A non-protein component is attached to a simple protein in conjugated proteins.
Derived Proteins
- Derived proteins are formed from proteins through chemical or enzyme-catalyzed modifications.
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