Answer:
B
Explanation:
The biuret solution will turn from blue to purple when it is exposed to protein. The copper sulfate and potassium hydroxide cause the substance to become an alkaline.
I don’t know why they make everyone type more than 20 characters but B sounds like the most reasonable answer.
Enzymes act as catalysts that remain unmodified as they increase the rate of a chemical reaction.
Answer:
to maintain internal balance
Explanation:
