Enzymes are globular proteins because ----------
Correct answer: C. They have a tertiary structure
- A. They have a primary structure
- B. They have a secondary structure
- C. They have a tertiary structure
- D. All of the above
Explanation
Option C is correct since the tertiary structure is the overall 3D structure of a globular protein and is produced by folding the helices and sheets upon themselves with turns and loops forming the folds. As enzymes are globular proteins ( their hydrophilic amino acids face water and hydrophobic amino acids face away from water ); they have tertiary structures.
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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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