LIFE SCIENCE

Detailed explanation-1: -Organic compounds essential to human functioning include carbohydrates, lipids, proteins, and nucleotides. These compounds are said to be organic because they contain both carbon and hydrogen.

Detailed explanation-2: -Some of the most common carbon compounds are: carbon dioxide (CO2), carbon monoxide (CO), carbon disulfide (CS2), chloroform (CHCl3), carbon tetrachloride (CCl4), methane (CH4), ethylene (C2H4), acetylene (C2H2), benzene (C6H6), ethyl alcohol (C2H5OH) and acetic acid (CH3COOH).

Detailed explanation-3: -All organic compounds, such as proteins, carbohydrates, and fats, contain carbon, and all plant and animal cells consist of carbon compounds and their polymers. (Polymers are macromolecules consisting of many simple molecules bonded together in specific ways.)

Detailed explanation-4: -The four classes of organic carbon compounds used by microbes are carbohydrates, fats, proteins, nucleic acids. The five examples are glucose, maltose, sucrose, glycogen, and cellulose.

Detailed explanation-5: -Bioinorganic substances do not contain carbon, for example water and inorganic salts. On the other hand bioorganic substances contain carbon, for example lipids and carbohydrates.