| A | B |
|---|
| the large molecules that make up living organisms | macromolecules |
| a small molecule that may be chemically bonded to other like molecules to form a polymer | monomer |
| an organic molecule made up of carbon, hydrogen, and oxygen in a 1:2:1 ratio; used as a source of energy and gives structure to come types of cells | carbohydrate |
| simple sugar | monosaccharide |
| organic molecules made up of carbon, hydrogen, and oxygen; insoluble in water | lipids |
| an organic molecule with many important functions; the main structural component of muscle, skin, bone, etc. | protein |
| organic molecules that are building blocks of protein | amino acid |
| an organic molecule that contains carbon, hydrogen, oxygen, nitrogen, and phosphorus and makes up RNA and DNA | nucleic acid |
| a molecule that contains a sugar, a phosphate group, and a nitrogen base and that links together to form RNA and DNA | nucleotide |
| a biological catalyst that enables chemical reactions to take place in the body | enzyme |
| theory that states that all organisms are made of cells, all cells are produced by other living cells, and the cell is the most basic unit of life | cell theory |
| the basic unit of life | cell |
| a group of cells that work together to perform a similar function | tissue |
| a group of different types of tissue that work together to perform a specific function or related functions | organ |
| an individual living thing | organism |
| two or more organs that work in a coordinated way to carry out similar functions | organ system |
| the first scientist to identify cells; he is credited with coining the term "cell" | Robert Hooke |
| the first scientist to note that all plants were made of cell | Matthais Schleiden |
| the first scientist to note that all animals were made of cells | Theodore Schwann |
| the scientist that combined the efforts of others to determine all cells come from other cells, and therefore responsible for the cell theory | Rudolf Virchow |
