Acids, Basis, And Salts Flashcards
Base
A substance that dissociates into one or more hydroxide ions (OH-)
The more hydroxide ions (OH-) dissolved in solution, the more basic (alkaline) it is
Salt
A substance that dissociates into positive or negative ions (neither is H+ or OH-)
Nutrients
Substances needed for body structure and function
Inorganic Compounds
No carbon
Water, many salts, acids, and bases
Water
Accounts for ~65% of body weight
Nearly all chemical reactions in the body occur in water
In a solution, a substance (the solvent) dissolved another substance (the solute)
Organic compounds
Contain carbon
Carbohydrates, fats, proteins, nucleus acids, ATP
Carbohydrates
Function primarily as an energy substrate
Sugars
Starches
Glycogen
Lipids
Fats
Fatty acids - energy substrates
Triglycerides - storage form of excess calories
Many different functions
Proteins
Large molecules, very complex structure Made up of amino acids Structural Regulatory (hormones) Contractile (shorten muscle cells) Transport Immunological (invading pathogens)
Nucleic Acids
DNA - your genetic material - controls most cell activities
RNA - relays genetic instructions to guide protein synthesis
Acid
A substance that dissociates into one or more hydrogen ions (H+)
The more hydrogen ions (H+) dissolved in a solution, the more acidic it is