| A | B |
|---|
| cell | smallest unit of life |
| clear, jellylike material in a cell | cytoplasm |
| structures in the nucleus that determine an organism's characteristics | chromosomes |
| Surrounds the nucleus and holds it together | nuclear membrane |
| tough outer covering of a plant cell | cell wall |
| covering of a cell controlling what enters and leaves the cell | cell membrane |
| structure in a plant cell that contains chlorophyll and allows the cell to make its own food | chloroplast |
| control center of the cell | nucleus |
| spaces that store food, water, and waste in a cell | vacuole |
| Cell division that produces body cells | mitosis |
| Joining of male and female reproductive cells | sexual reproduction |
| cell division that produces reproductive cells (sex cells) | meiosis |
| chemical in the cell that directs life activity, containing information about the organism | DNA |
| type of trait that gives an organism its appearance, even if only 1 parent has a gene for it | dominant |
| Segment of DNA in the chromosomes that controls traits of offspring | gene |
| structures in a cell that release stored energy | mitochondria |
| Chart of possible offspring combinations | Punnett square |
| type of trait that is masked or covered, only shown when both parents have a gene for it | recessive |
| Cells are the basic building blocks of all living things; all life activiteis take place in cells; new cells are produced by existing cells | the cell theory |
