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/kalˈke(ə)rēəs/ Adjective 1. Mostly or partly composed of calcium carbonate, in other words, containing lime or being chalky. ( 2. Chalky; relating to or containing lime or calcium, or calcific material. ( 3. (Zoology) Term applied to anatomical structures which are made primarily of calcium carbonate, in animals such as gastropods, i.e., snails, specifically about such structures as the operculum, the clausilium, and the love dart. ( Syn: Limy, chalky Word origin: From Latin calcārius (“of or pertaining to lime”), derived from calx (“lime”). Similar to...

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Calcium ATPase

1. Cation-transporting proteins that utilize the energy of ATP Hydrolysis for the transport of calcium. They differ from calcium channels which allow calcium to pass through a membrane without the use of energy. ( 2. Calcium ATPase is a form of P-ATPase that transfers calcium after a muscle has contracted. The calcium ATPase are: Plasma Membrane Calcium ATPase (PMCA) Sarcoplasmic Reticulum Calcium ATPase (SERCA)...

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Struggling in Biology?

Are You Premed?

Confused about the MCAT? Not sure how to prepare? This guide will show you how