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.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
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.
Practise Enzymes
633 free Enzymes MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Enzymes questions
Most of the enzymes are:
All of the following are true for an enzyme except:
Select the option that is not correct with respect to enzyme action:
The reaction takes place in a small part of the enzyme called:
If the co-factor is a non-protein, like a metallic ion, it is referred to as a:
Non-protein part, which is organic in nature and detachable, is called: