The Importance Of Chemistry And Chemical Changes In Chemistry

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Whether we notice it or not, chemistry lives in our bodies. Things such as skin conditions, digestion, breathing, and hair growth all deal with chemistry in their own way. They all have certain chemical reactions and chemical changes that affect the way our bodies work. Even though we study different curriculums during chemistry such as the chemical equations, chemical reactions, and other things we have learned go far beyond what is said in class.

During food digestion there are chemical and physical changes occurring. One chemical change for example would be, metabolic rate which is the rate of energy that is released from macronutrients. Carbohydrates (Glucose: C6H12O6), proteins (Alanine(amino acid) CH3) , and fats (Lauric
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A covalent bond is a bond consisting of one pair of shared electrons(Dorin, Demmin, Gabel 1990). There are also different types of chemical bonds that take place in your body. For example your hair. Although the bonds may not be considered ionic or covalent they are still there. Hair is made up of proteins which are located in the hair follicle. As hair grows it fills up with fibrous proteins called keratin. Some elements that help make up keratin would be Nitrogen, Hydrogen, Sulfur, and Oxygen.The average percent composition of normal hair would be 45.2% carbon , 27.9% oxygen, 6.6% hydrogen, 15.1% nitrogen. 91% of hair is made up of long chains of amino acids. These amino acids are combined together by chemical bonds called peptide bonds or end bonds. Peptide bonds are bonds that is formed between two molecules that when the carboxyl group mixes with the amino releases a molecule of water (H2O molar mass= 18g/mol). The peptide bond is located in the carbon atom in the middle of an amino acid extending to bond with nitrogen of the next amino acid. Some amino acids that are located in the hair are alanine (C3H7NO2 molar mass=89.09322g/mol), aspartic acid (C4H7NO4 molar mass= 174.87g/mol), glycine (C2H5NO2 molar mass=75.05584g/mol), and threonine (C4H9NO3 molar mass=103.1198g/mol). (Houston Community College Topic

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