A&P I Skeletal lecture 1
Chemistry: It is the science concerned with the atomic composition of substances, elements and their interactions, and the formation, decomposition and properties of molecules.
-Biological chemistry or Biochemistry is the biological or physiological chemistry of living organisms and of the chemical changes occurring therein.
Structure of Matter: All living and nonliving things are composed of matter.
Matter; is anything that occupies space and has mass. Mass is the amount of matter in an object.
-It includes all the solids, liquids and gasses in our surroundings as well as in our body.
Element: Is the simplest type of matter with unique chemical properties.
-To date, 112 elements are known, there 91 naturally occurring elements on earth, 24 of which play normal physiological roles in humans.
-Elements of the human body are grouped into two categories namely:
1) Major elements account for 99.9%
2) Trace elements account for 0.1%
-Of all these elements, about 96% of the weight of the body results from the elements such as O2, C, H and N.
-Several of these elements are classified as Minerals, which are inorganic elements that are extracted from the soil by plants and passed up the food chain to humans and other organisms.
-Minerals constitute about 4% of the human body weight. Nearly, ¾ of these are Ca and P, the rest is mainly Cl, Mg, K, Na and S.
Atom: An atom is the smallest particle of an element that has the chemical characteristics of that element.
-An element or an atom of that element often is represented by a symbol.
-Usually the first letter or letters of the element’s name is/are used. For example, C for Carbon, O for Oxygen, H for Hydrogen, Ca for Calcium, Cl for Chlorine, K for Potassium and Fe for Iron.
-The symbol is taken from English and Latin names.
Atomic Structure: The characteristics of living and nonliving matter results from the Structure, Organization and behavior of atoms.
-Atoms are divided into three major subatomic
-Biological chemistry or Biochemistry is the biological or physiological chemistry of living organisms and of the chemical changes occurring therein.
Structure of Matter: All living and nonliving things are composed of matter.
Matter; is anything that occupies space and has mass. Mass is the amount of matter in an object.
-It includes all the solids, liquids and gasses in our surroundings as well as in our body.
Element: Is the simplest type of matter with unique chemical properties.
-To date, 112 elements are known, there 91 naturally occurring elements on earth, 24 of which play normal physiological roles in humans.
-Elements of the human body are grouped into two categories namely:
1) Major elements account for 99.9%
2) Trace elements account for 0.1%
-Of all these elements, about 96% of the weight of the body results from the elements such as O2, C, H and N.
-Several of these elements are classified as Minerals, which are inorganic elements that are extracted from the soil by plants and passed up the food chain to humans and other organisms.
-Minerals constitute about 4% of the human body weight. Nearly, ¾ of these are Ca and P, the rest is mainly Cl, Mg, K, Na and S.
Atom: An atom is the smallest particle of an element that has the chemical characteristics of that element.
-An element or an atom of that element often is represented by a symbol.
-Usually the first letter or letters of the element’s name is/are used. For example, C for Carbon, O for Oxygen, H for Hydrogen, Ca for Calcium, Cl for Chlorine, K for Potassium and Fe for Iron.
-The symbol is taken from English and Latin names.
Atomic Structure: The characteristics of living and nonliving matter results from the Structure, Organization and behavior of atoms.
-Atoms are divided into three major subatomic