CHAP2: Chemistry of Life Flashcards
What is an atom?
Smallest unit of matter.
What is a chemical bond?
Forces of attractions that hold you together.
What is an ionic bond?
An attraction with cations(lose e-) and anions (gain e-).
What is an Ion?
A charged particle.
What is an electrolyte?
A charged particle that carries electric currents in solutions.
What is electronegativity?
An atom’s ability to pull shared electrons.
What is a covalent bond?
A bond that shares electrons and is very strong.
Differentiate polar and nonpolar covalent bonds.
Polar bonds have unequally shared electrons. Nonpolar are equally shared.
What is a hydrogen bond?
A weak bond between a slightly neg. and slightly pos. molecules.
What is metabolism?
Sum of all reactions in the body.
What are the 2 way energy can be transferred in reactions?
Exergonic rxn: Releases energy
Endergonic rxn: Absorbs energy
Differentiate inorganic and organic chemistry.
Inorganic: no C-H covalent bonds
Organic: C-H covalent bonds and carbon based
Differentiate solvents and solutes.
Solvents dissolve others.
Solutes are dissolved into solvents.
Differentiate hydrophobic and hydrophilic.
Hydrophobic: do not dissolve in water.
Hydrophilic: dissolves in water
Differentiate acids and bases.
Acids: proton donor (less 7)
Bases: proton acceptor (more 7)
