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carbonic acid

The Columbia Encyclopedia, Sixth Edition

carbonic acid H 2 CO 3 , a weak dibasic acid (see acids and bases ) formed when carbon dioxide dissolves in water; it exists only in solution. Carbonic acid forms carbonate and bicarbonate (or acid carbonate) salts (see carbonate ) by reaction with bases. It contributes to the sharp taste of carbonated beverages. ... Read more

carbonic acid
A Dictionary of Biology

carbonic acid A weak acid, H ₂CO ₃, formed in solution when carbon dioxide is dissolved in water: CO ₂ + H ₂O ↔ H ₂CO ₃ The acid is in equilibrium with dissolved carbon dioxide, and also dissociates into hydrogencarbonate and hydrogen ions. These reactions, catalysed by carbonic anhydrase , ...

carbonic acid
The Oxford Pocket Dictionary of Current English

car·bon·ic ac·id • n. a very weak acid, H ₂CO ₃, formed in solution when carbon dioxide dissolves in water.

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	Demonstration of the Carbonic Acid Exchange Theory: EMPLOYING MAGNETS & DIFFERENT COLORED PAPERCLIPS Magazine article from: The American Biology Teacher; 8/1/2007; ; 396 words ; The Carbonic Acid Exchange Theory explains how cations associated with clay particles...of aerobic respiration reacts with water in the soil solution to form carbonic acid that dissociates to a proton and a bicarbonate ion. These protons now... Read more
	Process for the transesterification of fats and oils of biological origin by means of alcoholysis using special carbonic acid salts Magazine article from: International News on Fats, Oils and Related Materials : INFORM; 10/1/2006; ; 57 words ; ...16/2006 The invention relates to a process for the preparation of fatty acid esters from fats and oils of biological origin by transesterification with...basic catalysts, the catalysts being salts of a basic organic compound and carbonic acid. Read more
	Physiological and molecular biological characterization of intracellular carbonic anhydrase from the marine diatom Phaeodactylum tricornutum Magazine article from: Plant Physiology; 8/1/2001; ; 700+ words ; ...Diatom Phaeodactylum tricornutum1 A single intracellular carbonic anhydrase (CA) was detected in air-grown and, at reduced...this putative precursor sequence with the N-terminal amino acid sequence of the purified CA indicated that it included...homologous to beta-type CAs. Even though the zinc-ligand amino ... Read more
	Helicobacter pylori and autoimmune pancreatitis: role of carbonic anhydrase via molecular mimicry? Magazine article from: Journal of Cellular and Molecular Medicine; 7/1/2005; ; 700+ words ; ...molecular mimicry * carbonic anhydrase - amino acid sequence analysis...protein(s) using amino acid sequence comparison...extracted the amino acid sequences of human carbonic anhydrase II and...segment 23-239 of carbonic anhydrase of Helicobacter...260 and 247 amino acid long, ... Read more
	An anaplerotic role for mitochondrial carbonic anhydrase in Chlamydomonas reinhardtii1 Magazine article from: Plant Physiology; 8/1/2003; ; 700+ words ; Previous studies of the mitochondrial carbonic anhydrase (mtCA) of Chlamydomonas...algae and plants, the tricarboxylic acid (TCA) cycle plays a fundamental biosynthetic...Reactions of this sort are catalyzed by carbonic anhydrases (CAs), whose activity is... Read more
	Laryngeal Epithelial Defenses Against Laryngopharyngeal Reflux: Investigations of E-cadherin, Carbonic Anhydrase Isoenzyme III, and Pepsin Magazine article from: The Annals of Otology, Rhinology & Laryngology; 12/1/2005; ; 700+ words ; ...intracellular) pepsin and carbonic anhydrase isoenzyme III (CAIII...reduced in patients with LPR. Carbonic anhydrase III expression was...of E-cadherin. Key Words: carbonic anhydrase, cell biology, cellular...caused by repeated exposure to acid and pepsin resulting in a...of the larynx. The role ... Read more
	Biochemical and molecular inhibition of pastidial carbonic anhydrase reduces the incorporation of acetate into lipids in cotton embryos and tobacco cell suspensions and leaves Magazine article from: Plant Physiology; 4/1/2002; ; 700+ words ; Biochemical and Molecular Inhibition of Plastidial Carbonic Anhydrase Reduces the Incorporation of Acetate into Lipids...Cell Suspensions and Leaves1 Two cDNAs encoding functional carbonic anhydrase (CA) enzymes were recently isolated from a non-photosynthet...utilization by acetyl-coenzyme A carboxylase and the ... Read more
	Origin of Mechanical Strength of Bovine Carbonic Anhydrase Studied by Molecular Dynamics Simulation Magazine article from: Biophysical Journal; 12/1/2004; ; 700+ words ; ABSTRACT The forced unfolding process of bovine carbonic anhydrase II (BCA II) was examined at the atomic level by...destruction of the zinc coordination site. INTRODUCTION Carbonic anhydrase catalyzes reversible hydration and dehydration...plants, and bacteria. It has long been known that human carbonic ... Read more
	The Flaveria bidentis &bgr;-Carbonic Anhydrase Gene Family Encodes Cytosolic and Chloroplastic Isoforms Demonstrating Distinct Organ-Specific Expression Patterns1[OA] Magazine article from: Plant Physiology; 7/1/2007; ; 700+ words ; Carbonic anhydrase (CA) catalyzes the interconversion of CO2 and bicarbonate...CAs, including lipid biosynthesis and antioxidant activity. Carbonic anhydrase (CA; EC 4.2.1.1) catalyzes the reversible hydration...2001; Parisi et al., 2004). Although no conservation of amino acid sequence or tertiary and ... Read more
	Localization of Soluble [beta]-Carbonic Anhydrase in the Marine Diatom Phaeodactylum tricornutum. Sorting to the Chloroplast and Cluster Formation on the Girdle Lamellae1[w] Magazine article from: Plant Physiology; 5/1/2005; ; 700+ words ; A β-carbonic anhydrase (CA) in the marine diatom Phaeodactylum tricornutum (PtCA1...1996; Tortell et al., 1997; Badger et al., 1998; Matsuda et al., 200Ia). Carbonic anhydrases (CA) in microalgae have been shown to be a crucial component... Read more

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	The effect of different concentration of carbonic acid in extinguishing diffusion and smoldering flames. (South Carolina Junior Academy Of Sciences Abstracts).(fire fighting research)(Brief Article) Magazine article from: Bulletin of the South Carolina Academy of Science; 1/1/2003
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	Slime hunters: scientists brave deadly gases and flesh-burning acid to discover what's hidden in a cave in Mexico.(Earth Caves) Magazine article from: Science World; 11/1/2004

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