NSD 225 Chapter Notes - Chapter 8: Heme, Fibrin, Myoglobin
7 Dec 2016
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Chapter 8: water and minerals- the ocean within (305: list the biological functions of water. Calcium plays a role in muscle contraction, the flow of calcium inside the muscle cells causes the muscles to contact and relax. Calcium plays a role in metabolism, as the protein calmodulin needs to bind to calcium in order for it to regulate cellular functions. Calcium is involved in blood clotting as it participates in the production of fibrin. Calcium is also needed by the nerve cells to transmit signals: explain the difference between heme and nonheme iron. Heme iron is found in animal tissue and it is part of hemoglobin and myoglobin. Non heme iron is found in plant foods and iron-fortified foods. Heme iron is absorbed better: list the three stages of iron deficiency. Fluoride inhibits bacterial activity in the mouth and shifts the balance toward depositing minerals. Glucose metabolism, chromium enhances insulin"s ability to move glucose into cells.
