Chapter 2 Flashcards
the smallest units of matter that cannot be broken down into anything simpler that retains that element’s properties
Atoms
Atoms consist of subatomic particles
Protons, Neutrons, and Electrons
atoms consist of
an atomic nucleus, negatively charged electrons
an attraction between atoms
Chemical bond
an atom or molecule with a net electric charge due to the loss or gain of one or more electrons
Ion
a group of atoms bonded together, representing the smallest fundamental unit of a compound that can take part in a chemical reaction
Molecule
five main characteristics of water
High polarity, high specific heat, high hear of vaporization, low density as a solid, and attraction to other polar molecules.
a measure of how acidic/basic water is
pH
fatty compounds that perform a variety of functions in your body
Lipids
a type of macronutrient found in many foods and beverages
Carbohydrates
large, complex molecules that play many important roles in the body
Proteins
large biomolecules that play essential roles in all cells and viruses
Nucleic acids
proteins that help speed up metabolism or the chemical reactions in our bodies
Enzymes
