It is false about enzymes:
Correct answer: A. All enzymes require co-factors for proper functioning.
- A. All enzymes require co-factors for proper functioning.
- B. Only a small amount of enzymes is required to catalyze reactions.
- C. They function under both in vitro and in vivo conditions.
- D. They lower the activation energy of reactions.
Explanation
The statement 'All enzymes require cofactors for proper functioning' is false. While many enzymes do require cofactors to assist in their catalytic activity, some exceptions can function without them, such as certain simple enzymes. The other options are accurate descriptions of enzyme behavior: enzymes are efficient and require only small amounts for catalysis, function both in vitro and invitro environments, and lower the activation energy of biochemical reactions.
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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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