Difference between revisions of "Calcium"
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{{Definition|title=Calcium | {{Definition|title=Calcium | ||
| − | |definition= (Ca) metallic element that occurs in many rocks and in seawater and is an essential macronutrient. | + | |definition= (Ca) metallic element that occurs in many rocks and in seawater and is an essential macronutrient. As Ca<sup>+</sup> it is an important regulatory ion in living cells, involved e.g. in regulation of enzyme activity, stimulation of muscle contraction, and control of secretion. As calcium salts (e.g. calcium phosphates), it is a major constituent of bone.<ref name="Hendersons"> Lawrence, E. (2005). ''Henderson’s dictionary of biology.'' Pearson Education Limited, 13th ed., Harlow. 748 p. </ref>.}} |
==References== | ==References== | ||
<references/> | <references/> | ||
Latest revision as of 15:43, 21 August 2007
Definition of Calcium:
(Ca) metallic element that occurs in many rocks and in seawater and is an essential macronutrient. As Ca+ it is an important regulatory ion in living cells, involved e.g. in regulation of enzyme activity, stimulation of muscle contraction, and control of secretion. As calcium salts (e.g. calcium phosphates), it is a major constituent of bone.[1].
This is the common definition for Calcium, other definitions can be discussed in the article
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References
- ↑ Lawrence, E. (2005). Henderson’s dictionary of biology. Pearson Education Limited, 13th ed., Harlow. 748 p.
