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Living with the StarsHow the Human Body is Connected to the Life Cycles of the Earth, the Planets, and the Stars$
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Karel Schrijver and Iris Schrijver

Print publication date: 2015

Print ISBN-13: 9780198727439

Published to Oxford Scholarship Online: April 2015

DOI: 10.1093/acprof:oso/9780198727439.001.0001

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PRINTED FROM OXFORD SCHOLARSHIP ONLINE (oxford.universitypressscholarship.com). (c) Copyright Oxford University Press, 2021. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in OSO for personal use. date: 18 September 2021

Food for Thought

Food for Thought

(p.36) (p.37) 4 Food for Thought
Living with the Stars

Karel Schrijiver

Iris Schrijiver

Oxford University Press

This chapter relates how the elements hydrogen, oxygen, carbon, and nitrogen—dominating in all life on the Earth—make up more than 96% of our body weight. Carbon is the key component of organic molecules, in which it is combined with about 20 other elements to form the basic building blocks of our bodies. The four main categories of organic molecules—carbohydrates, lipids, proteins, and nucleic acids—carry and store energy, form building blocks of the cells, regulate the body’s chemistry, and help store the information from which cell structure and function are derived. A network of metabolic pathways releases energy to the body when needed and stores surplus energy for later use. This chemical machinery, powered by the plants and animals that we consume, constantly works to keep us going

Keywords:   food, molecule, carbohydrate, lipid, protein, nucleic acid, metabolism, energy

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