[Answer] Calcium ions that act as second messengers are stored in _____.

Answer: endoplasmic reticula
Calcium ions that act as second messengers are stored in _____.
Calcium signaling – Wikipedia
Calcium-binding protein – Wikipedia
Calcium signaling is the use of calcium ions (Ca ) to communicate and drive intracellular processes often as a step in signal transduction. Ca is important for cellular signalling for once it enters the cytosol of the cytoplasm it exerts allosteric regulatory effects on many enzymes and proteins. Ca can act in signal transduction resulting from activation of ion channels or as a second messenger caused by indirect signal transduction pathways such as G protein-coupled receptors.
Tue Apr 26 2005 14:30:00 GMT-0400 (Eastern Daylight Time) · Calcium ions are one type of second messengers and are responsible for many important physiological functions including muscle contraction fertilization and neurotransmitter release. The ions are normally bound or stored in intracellular components (such as the endoplasmic reticulum(ER) ) and can be released during signal transduction.
Mon Nov 24 2003 13:30:00 GMT-0500 (Eastern Standard Time) · Calcium ions (Ca 2+) contribute to the physiology and biochemistry of organisms cell.They play an important role in signal transduction pathways where they act as a second messenger in neurotransmitter release from neurons in contraction of all muscle cel…

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