Answer :
Answer:
A
Explanation:
Each enzyme operates best within a certain pH range.
Digestive enzymes are most active in an environment with a pH of 7 is the conclusions can be drawn from this graph.
What is enzymes?
Enzymes are referred to as proteins which act as biological catalysts. Catalysts enhance the chemical reactions. The molecules upon which enzymes may act are called substrates, and the enzyme converts the substrates into different molecules known as products.
Each enzyme works within quite a small pH range. There is a pH at which its activity is greatest (the optimal 7 pH) because changes in pH can make and break intra and intermolecular bonds, changing the shape of the enzyme and, therefore, its effectiveness.
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