| A | B |
| Biology | The scientific study of life. |
| Hypothesis | A proposed scientifically testable explanation for an observed phenomenon. |
| Law (Scientific) | A law that generalizes a body of observations. At the time it is made |
| Mechanism (Scientific) | The combination of components and processes that serve a common function. |
| Science | A body of evidence based knowledge gained through observation and experimentation related to the natural world and technology. |
| Principle (Scientific) | A concept based on scientific laws and axioms (rules assumed to be present |
| Theory (Scientific) | An explanation of observable phenomena based on available empirical data and guided by a system of logic that includes scientific laws; provides a system of assumptions |
| Cell | The basic unit of structure and function for all living organisms. |
| Chloroplast | An organelle found in plant cells and the cells of other eukaryotic photosynthetic organisms where photosynthesis occurs. |
| Chromosomes | A single piece of coiled DNA and associated proteins found in linear forms in the nucleus of eukaryotic cells and circular forms in the cytoplasm of prokaryotic cells; contains genes that encode traits. Each species has a characteristic number of chromosomes. |
| Eukaryote | A type of organism composed of one or more cells containing a membrane bound nucleus |
| Endoplasmic Reticulum (ER) | An organellecontaining folded membranes and sacs, responsible for the production, processing, and transportation of materials for use inside and outside a eukaryotic cell. |
| Extracellular | Located outside a cell. |
| Golgi Apparatus | An organelle found in eukaryotic cells responsible for the final stages of processing proteins for release by the cell. |
| Intracellular | Located inside a cell. |
| Mitochondrion | A membrane bound organelle found in most eukaryotic cells; site of cellular respiration |
| Multicellular | Made up of more than one cell. |
| Nucleus | A membrane bound organelle in eukaryotic cells functioning to maintain the integrity of the genetic material and |
| Organelle | A subunit within a cell that has a specialized function. |
| Plasma Membrane | A thin phospholipid and protein molecule bilayer that encapsulates a cell and controls the movement of materials in and out of the cell through active or passive transport. |
| Plastids | A group of membrane bound organelles commonly found in photosynthetic organisms and mainly responsible for the synthesis and storage of food. |
| Prokaryote | , A single‐celled organism that lacks a membrane‐bound nucleus and specialized organelles. |
| Ribosome | A cellular structure composed of RNA and proteins that is the site of protein |
| Unicellular | Made up of a single cell. |