Physiology - Research Article from Macmillan Science Library: Plant Sciences

This encyclopedia article consists of approximately 8 pages of information about Physiology.
This section contains 2,227 words
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Physiology

Plant physiology encompasses the entire range of chemical reactions carried out by plants. Like other living organisms, plants use deoxyribonucleic acid (DNA) to store genetic information and proteins to carry out cellular functions. Enzymes regulate both anabolism (buildup of complex macromolecules) and catabolism (the breaking down of macromolecules into simple molecules). Unlike animals, plants create a large variety of secondary metabolites, complex molecules with a range of specialized functions.

Structure and Function of Macromolecules

Rna.

Ribonucleic acid (RNA) is similar in structure to DNA except that a different sugar, ribose, is present and the thymine of DNA is replaced by uracil. RNA also differs from DNA in being single-rather than double-stranded and it is also more labile (unstable) than DNA. The purpose of RNA is to transfer the genetic information locked up in the DNA so that proteins are produced by the plant cell. In order to carry...

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This section contains 2,227 words
(approx. 8 pages at 300 words per page)
Buy the Physiology Encyclopedia Article
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Macmillan Science Library: Plant Sciences
Physiology from Macmillan Science Library: Plant Sciences. Copyright © 2001-2006 by Macmillan Reference USA, an imprint of the Gale Group. All rights reserved.
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