B. it will gain an electron to become an anion
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Answer:
A substance that speeds up a chemical reaction—without being a reactant—is called a catalyst. The catalysts for biochemical reactions that happen in living organisms are called enzymes. Enzymes are usually proteins, though some ribonucleic acid (RNA) molecules act as enzymes too.
Explanation:
<span>The yeast cells produced the least amount of gas in 15 minutes at 90 degrees Celsius as compared to 10 degrees, 25 degrees, 50 degrees and 75 degrees Celsius.</span>
Answer: Endrocrine would be the correct answer. Hope this helped!