Biology (Organic and Inorganic)

• Biology is the area of science dealing with living things.
• Organic compounds - characterized by the presence of carbon
• Carbohydrates - are made up of carbon, hydrogen, and oxygen atoms. They have the general formula C(n)H(2n)O(n). Most carbohydrates serve as energy molecules or energy reserves in living organism
• Cellulose - gives strength and protection to plant cells
• Lipids - are macromolecules such as fat, oils and waxes. They are made up of carbon, hydrogen, and oxygen. The building blocks used to form fats are fatty acids and glycerol. Some excess food in the body is stored as fats. Lipids that are at room temperature are known as oils. Waxes serves as protective body covering to organisms
• Proteins - are made up of repeating units of amino acids. In the form of enzymes, they control the rate of chemical reactions inside the cell
• Enzymes - are proteins that act as a catalysts (substances that can increase or speed up chemical reaction)
• Nucleic acids - are carriers of hereditary information in living organisms
• Vitamins - are substances necessary in very small amount for body growth and activity
• Inorganic compounds - characterized by the absence of carbon
• Water - the most abundant inorganic compound. It is the medium of transport for food, minerals, and other substances in the living system
• Carbon dioxide - supplies the carbon found in substances made by living things. are chemical elements or compounds occuring naturally.