Biochemistry Terms

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Hormonal Proteins

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Proteins that act as chemical messengers in the body, regulating physiological processes.

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Hydrogen Bond

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A weak bond between two molecules resulting from an electrostatic attraction.

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Hydrolysis

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A chemical process that splits a molecule by adding water.

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Hydrophilic

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Having an affinity for water; water-attracting.

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Hydrophobic

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Repelling, tending not to combine with, or incapable of dissolving in water.

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Hydroxyl Group

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A functional group consisting of an oxygen atom bonded to a hydrogen atom (-OH).

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Ion

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An atom or molecule with a net electric charge due to the loss or gain of one or more electrons.

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Ionic Bond

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A chemical bond formed between two ions with opposite charges.

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Lipid

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A group of naturally occurring molecules that include fats, waxes, and fat-soluble vitamins.

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Macromolecule

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A large complex molecule, such as proteins, nucleic acids, carbohydrates, and lipids.