Which of the following statements about enzymes is TRUE?
A. An enzyme is used up after a reaction and cannot be used again.
B. Enzymes bind to specific substrates at an active site which undergoes "induced fit."
C. Enzymes work by increasing the activation energy of a reaction.
D. All enzymes function at the same temperature and pH level.
Answer (2)
The true statement about enzymes is that they bind to specific substrates at an active site with an induced fit. Enzymes can be reused and lower activation energy. Hydrogenation refers to adding hydrogen atoms to unsaturated compounds. ;
The correct statement is that enzymes bind to specific substrates at an active site which undergoes 'induced fit.' Enzymes can be reused and lower the activation energy of reactions, while optimal conditions vary among different enzymes.
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