Biology 2010 Student Edition

Published by Prentice Hall
ISBN 10: 9780133669510
ISBN 13: 978-0-13366-951-0

Chapter 2, The Chemistry of Life - Assessment - 2.4 Chemical Reactions and Enzymes - Understand Key Concepts/Think Critically - Page 57: 29


Factors that affect enzyme function are regulatory molecules, pH levels, and temperature conditions.

Work Step by Step

Enzymes generally work under very specific conditions. Human enzymes work ideally with temperatures close to 37$^{\circ}$C. Certain human enzymes work at certain pH levels; for example, pepsin is an enzyme found in the stomach that catalyzes the reaction that breaks peptide bonds in proteins under very acidic conditions. Additionally, the actions of enzymes can be turned on or off by regulatory molecules.
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