AP BIOLOGY

Detailed explanation-1: -Organic molecules are usually composed of carbon atoms in rings or long chains, to which are attached other atoms of such elements as hydrogen, oxygen, and nitrogen. Hence carbon elements are found in all organic molecules.

Detailed explanation-2: -This means that all organic compounds have in common the presence of carbon atoms and hydrogen atoms. In addition, different organic compounds may contain oxygen, nitrogen, phosphorous, and other elements.

Detailed explanation-3: -Carbon is the basis of organic chemistry and its compounds. It has the ability to catenate and form various organic compounds.

Detailed explanation-4: -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-5: -Carbon is the main element in organic compounds. Carbon can form stable bonds with many elements, including itself. There are four major types of organic compounds: carbohydrates, lipids, proteins, and nu cleic acid s.