Books > Science & Mathematics > Biology, life sciences > Biochemistry
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Essential Biochemistry, Endocrinology and Nutrition (Paperback, Softcover reprint of the original 1st ed. 1971)
Loot Price: R1,488
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Essential Biochemistry, Endocrinology and Nutrition (Paperback, Softcover reprint of the original 1st ed. 1971)
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Biochemistry is the study of the chemistry of living organisms, of
the ways in which food is used to serve all the many needs of the
body. Biochemistry is closely connected with nutrition, the study
of the types and amounts of various materials required in the diet.
Biochemistry is also inextricably int rtwined with endo crinology,
the study of hormones, for most of the hormones exert their actions
by altering the behaviour of chemical reactions within the body.
The central problem in biochemistry is that of the supply of
energy. Energy is needed for a multitude of purposes of which
muscular activity is the best known. Energy is required for
digestion, and for the functioning of the kidney, the liver, the
brain and all the other organs in the body. Energy is also
essential for the building up of the complex organic molecules of
which the body is con structed. Ultimately, most of the energy
utilized on earth comes from the sun. Plants are able to tap this
energy source directly by the process of photosynthesis. By using
pigments, notably the green chlorophyll, plants can trap the energy
of sunlight and use it to build up complex substances such as fat,
carbohydrate, protein and nucleic acids. The only raw materials
required are carbon dioxide, water and simple inorganic substances
such as nitrates which can be extracted from the soil."
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