Covalent modification means change in?
Correct answer: A. Chemical properties
- A. Chemical properties
- B. Physical properties
- C. Bonding on amino acids
- D. pH of amino acids
Explanation
Covalent modifications are enzyme-catalyzed alterations of synthesized proteins and include the addition or removal of chemical groups. Modifications can target a single type of amino acid or multiple amino acids and will change the chemical properties of the site. Covalent modification in the context of enzymes refers to a regulatory mechanism where the activity of an enzyme is altered through the covalent attachment or removal of chemical groups to specific amino acid residues within the enzyme molecule. This post-translational modification can result in changes to the enzyme's structure, conformation, and ultimately, its catalytic activity.
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About Enzymes
Enzymes are biological catalysts that lower activation energy without being consumed, and their specificity is explained by the lock and key and induced fit models. Work includes the effects of temperature, pH and substrate concentration on reaction rate, plus competitive and non-competitive inhibition and how these differ.
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