Definitions from Module 5# in Apologia Biology.
Anything that has mass and takes up space.
An explanation or representation of something that cannot be seen.
A collection of atoms that all have the same number of protons.
Chemicals that result from atoms linking together.
A change that affects the appearance but not the chemical makeup of a substance.
A change that alters the makeup of the elements or molecules of a substance.
One of the 3 forms - solid, liquid, or gas - which every substance is capable of attaining.
The random motion of molecules from one area of high concentration to an area of low concentration.
A membrane that allows some molecules to pass through but does not allow other molecules to pass through.
The tendency of a solvent to travel across a semipermeable membrane into areas of higher solute concentration.
A substance that alters the speed of a chemical reaction but is not used up in the process.
A molecule that contains only carbon and any of the following: hydrogen, oxygen, nitrogen, sulfur, and/or phosphorus
The process by which living organisms produce larger molecules from smaller ones.
Two different molecules that have the same chemical formula.
Simple carbohydrates that contain 3 to 10 carbon atoms.
Carbohydrates that are made up of two monosaccharides.
A chemical reaction in which molecules combine by removing water.
Breaking down complex molecules by the addition of water.
Lacking any affinity to water.
A lipid made from fatty acids that have no double bonds between carbohydrates.
A lipid made from fatty acids that have at least one double bond between carbon atoms.
A bond that links amino acids together in a protein.
A strong attraction between hydrogen atoms and certain other atoms in specific molecules.
Carbohydrates that are made up of more than two monosaccharides
A measurment of how much solute exists within a certain volume of solvent