| A | B |
| active transport | process requiring cellular energy -- Moving from lower concentration to higher concentration |
| cell | the basic unit of structure and function in all living things |
| cell wall | Surrounds the cell membrane and its contents, gives the plant its shape |
| cellular respiration | energy releasing process that takes place in mitochondria |
| control group | The group that serves as a baseline compared to the experimental group. This group does not get the treatment |
| coordination | process of bringing different activities together for a specific result |
| data | observations made with the senses (sometimes with the help of tools) |
| dependent variable | The variable in the experiment that you measure throughout the experiment; depends on the independent variable. |
| endocrine system | regulates cell and organism activities by way of hormones |
| equilibrium | balance, homeostasis |
| excretion | removal of waste of cell activities |
| experimental group | The group(s) in which the independent variable is changed. The group that is treated differently. |
| feedback mechanism | control system where one structure regulates another structure |
| growth | An increase in size and/or number of cells of an organism |
| homeostasis | the process by which organisms keep their internal conditions relatively stable |
| hypothesis | A prediction that can be tested |
| independent variable | The one variable in the experiment that you change for the experimental groups |
| inference | is the interpretation of facts and enables us to assess and evaluate conditions and make predictions |
| life functions | The processes or activities that are common to all living things |
| metabolism | Chemical reactions that happen in cells |
| mitochondria | Involved in cell respiration, "powerhouse of the cell," makes ATP (an energy molecule) |
| multicellular | having more than one cell |
| nervous system | body system that regulates the body |
| nucleus | Controls cell activities |
| nutrition | process by which organisms obtain and process food |
| organism | any living thing |
| osmosis | A special kind of diffusion where water moves across a semipermeable membrane from an area of higher concentration to an area of lower concentration |
| receptor | structure on the cell membrane that gets triggered by a chemical |
| regulation | process that controls and coordinates activities in an organism |
| scientific method | a set of steps used to find answers to questions |
| selectively permeable | allows only certain substances to pass through it |
| spontaneous generation | idea that living things can come from nonlivng things |
| stimulus | a change in the environment that causes a response |
| transport | process involved with the circulation and absorption of nutrients |
| unicellular | having one cell |