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Chemistry/Biochemistry (97)

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Pictures

EN_00966278_6680
EN_00966278_6680

Ribbon molecular model of the 3-D structure of an insulin monomer as determined by x-ray crystallography. A compact globular structure with a hydrophobic core, it consists of two protein chains: an A chain and a B chain.

EN_00966278_6734
EN_00966278_6734

Molecular model of DEET, N,N-diethyl-meta-toluamide (C12H17NO), the main ingredient in most insect repellents, shown with hydrogen (white), carbon (green), oxygen (red), and nitrogen (blue). DEET guards against mosquito and tick bites.

EN_00966278_6735
EN_00966278_6735

Molecular model of DEET, N,N-diethyl-meta-toluamide (C12H17NO), the main ingredient in most insect repellents, shown with hydrogen (white), carbon (green), oxygen (red), and nitrogen (blue). DEET guards against mosquito and tick bites.

EN_00966278_6736
EN_00966278_6736

Molecular model of DEET, N,N-diethyl-meta-toluamide (C12H17NO), the main ingredient in most insect repellents, shown with hydrogen (white), carbon (green), oxygen (red), and nitrogen (blue). DEET guards against mosquito and tick bites.

EN_00966278_6788
EN_00966278_6788

3D space-filling molecular models of ethanol, or ethyl alcohol (C2H6O), the form of alcohol we drink, with swirling text. The molecule is made up of carbon atoms (purple), hydrogen (clear), and oxygen (red).

EN_00966278_6790
EN_00966278_6790

3D space-filling molecular models of ethanol, or ethyl alcohol (C2H6O), the form of alcohol we drink, with each of the seven molecules made up of carbon atoms (light blue), oxygen (reddish), and hydrogen (clear).

EN_00966278_6953
EN_00966278_6953

Molecular model of acetaldehyde, one of the congener molecules (along with ethanol) produced in alcohol fermentation. Congeners contribute to the flavor and color of alcoholic beverages and are believed to increase hangover symptoms.

EN_00966278_6954
EN_00966278_6954

Molecular models of ethanol (center) and congener compounds (clockwise from top left): acetaldehyde, amyl alcohol, methanol, and ethyl acetate. Congeners (along with ethanol) are produced in alcohol fermentation. They contribute to the flavor and color of alcoholic beverages and are believed to increase hangover symptoms.

EN_00966278_6955
EN_00966278_6955

Molecular model of amyl alcohol, one of the congener compounds (along with ethanol) produced in alcohol fermentation. Congeners contribute to the flavor and color of alcoholic beverages and are believed to increase hangover symptoms.

EN_00966278_6956
EN_00966278_6956

Molecular model of ethanol.

EN_00966278_6957
EN_00966278_6957

Molecular model of ethyl acetate, one of the congener compounds (along with ethanol) produced in alcohol fermentation. Congeners contribute to the flavor and color of alcoholic beverages and are believed to increase hangover symptoms.

EN_00966278_6958
EN_00966278_6958

Molecular model of methanol (also called carbinol or methyl alcohol), one of the congener compounds (along with ethanol) produced in alcohol fermentation. Congeners contribute to the flavor and color of alcoholic beverages and are believed to increase hangover symptoms.

EN_00962647_4073
EN_00962647_4073

molecule

EN_00962661_1698
EN_00962661_1698

molecule

EN_00957730_3122
EN_00957730_3122

Illustration of beakers.

EN_00957730_3126
EN_00957730_3126

An illustration of a microscope.

EN_00957730_3127
EN_00957730_3127

An illustration of a microscope.

EN_90286235_0305
EN_90286235_0305

Cutaway view of a helium atom displaying 1s & 2s orbitals.

EN_90286235_0253
EN_90286235_0253

Sarin nerve gas. Computer artwork of a molecule of the nerve gas Sarin (methylphosphoneflouridic, (1- methyl ester), chemical formula (C4. H10. O2.P.F)). The atoms are shown as spheres and are colour- coded: carbon (blue), oxygen (red), hydrogen (white), phosphorus (yellow), fluorine (green). The bonds between them are shown as cylinders. Sarin (also known as GB) is used in chemical weapons. It is deadly and works in minutes. Skin contact or inhalation leads to disruption of the nervous system leading to convulsions, paralysis and death.

EN_90286236_0070
EN_90286236_0070

Protein molecule.

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