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4 votes
An enzyme is a protein that

transports nutrients across a membrane
increases the rate of a chemical reaction
receives and sends signals across a cell
provides structure for the cell's organelles

1 Answer

7 votes

Answer:

b. Increase the rate of a chemical reaction.

Step-by-step explanation:

Enzymes are biological catalyst. Catalysts are the chemical substance that alters the chemical reaction without getting involved itself. So 2nd is correct.

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