Life: The Science of Biology 11th Edition

Published by W. H. Freeman
ISBN 10: 1-31901-016-4
ISBN 13: 978-1-31901-016-4

Chapter 50 - Nutrition, Digestion, and Absorption - 50.1 - Food Provides energy As Well As Materials for Biosynthesis - 50.1 Recap - Learning Outcomes - Page 1074: 2

Answer

Acetyl groups provide carbon skeletons, which are building blocks for a diverse array of organic molecules. Acetyl groups can be derived from many macromolecules but cannot be synthesized in animals for dietary use. Macronutrients refer to those that are needed in large amounts, such as sodium and potassium. Micronutrients are needed in trace amounts and include iron and zinc.

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