Home | | Essentials of Anatomy and Physiology | Chemical Reactions

Chapter: Essentials of Anatomy and Physiology: Some Basic Chemistry

| Study Material, Lecturing Notes, Assignment, Reference, Wiki description explanation, brief detail |

Chemical Reactions

A chemical reaction is a change brought about by the formation or breaking of chemical bonds.

CHEMICAL REACTIONS

A chemical reaction is a change brought about by the formation or breaking of chemical bonds. Two general types of reactions are synthesis reactions and decom-position reactions.

In a synthesis reaction, bonds are formed to join two or more atoms or molecules to make a new com-pound. The production of the protein hemoglobin in potential red blood cells is an example of a synthesis reaction. Proteins are synthesized by the bonding of many amino acids, their smaller subunits. Synthesis reactions require energy for the formation of bonds.

In a decomposition reaction, bonds are broken, and a large molecule is changed to two or more smaller ones. One example is the digestion of large molecules of starch into many smaller glucose mole-cules. Some decomposition reactions release energy; this is described in a later section on cell respiration.


Study Material, Lecturing Notes, Assignment, Reference, Wiki description explanation, brief detail


Copyright © 2018-2020 BrainKart.com; All Rights Reserved. Developed by Therithal info, Chennai.