Answer: Carbohydrates proteins lipids nucleic acids
What are the four organic molecules found in living things?

Organic chemistry is a branch of chemistry that studies the structure properties and reactions of organic compounds which contain carbon in covalent bonding. Study of structure determines their chemical composition and formula. Study of properties includes physical and chemical properties and evaluation of chemical reactivity to understand their behavior. The study of organic reactions includes the ch…

Organic chemistry is a branch of chemistry that studies the structure properties and reactions of organic compounds which contain carbon in covalent bonding. Study of structure determines their chemical composition and formula. Study of properties includes physical and chemical properties and evaluation of chemical reactivity to understand their behavior. The study of organic reactions includes the chemical synthesis of natural products drugs and polymers and study of individual organic molecules in the laboratory and via theoretical (in silico) study. The range of chemicals studied in organic chemistry includes hydrocarbons (compounds containing only carbon and hydrogen) as well as compounds based on carbon but also containing other elements especially oxygen nitrogen sulfur phosphorus (included in many biochemicals) and the halogens. Organometallic chemistry is the study of compounds containing carbon–metal bonds. In addition contemporary research focuses on organic chemistry involving other organometallics including the lanthanides but especially the transition metals zinc copper palladium nickel cobalt titanium and chromium. Organic compounds form the basis of all earthly life and constitute the majority of known chemicals. The bonding patterns of carbon with its valence of four—formal single double and triple bonds plus structures with delocalized electrons—make the array of organic compounds structurally diverse and their range of applications enormous. They form the basis of or are constituents of many commercial products including pharmaceuticals; petrochemicals and agrichemicals and products made from them including lubricants solvents; plastics; fuels and explosives. The study of organic chemistry overlaps organometallic chemistry and biochemistry but also with medicinal chemistry polymer chemistry and materials science.

Before the nineteenth century chemists generally believed that compounds obtained from living organisms were endowed with a vital force that distinguished them from inorganic compounds . According to the concept of vitalism (vital force theory) organic matter was endowed with a "vital force". During the first half of the nineteenth century some of the first systematic studies of organic compounds …

Before the nineteenth century chemists generally believed that compounds obtained from living organisms were endowed with a vital force that distinguished them from inorganic compounds . According to the concept of vitalism (vital force theory) organic matter was endowed with a "vital force". During the first half of the nineteenth century some of the first systematic studies of organic compounds were reported. Around 1816 Michel Chevreul started a study of soaps made from various fats and alkalis . He separated the acids that in combination with the alkali produced the soap. Since these were all individual comp...

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