| A | B | 
| Cell | The basic unit of all living things | 
| Nucleus | Part of a cell that functions in controlling activities of the cell. | 
| Cell wall | Part of a cell found only in plant cells and adds a layer of protection. | 
| Vacuoles | Part of a cell that provides storage for excess materials such as wastes | 
| Ribosomes | Part of the cell that makes proteins. | 
| Plasma membrane | Part of the cell maintains homeostasis in the cell allowing substances in and out. | 
| Mitochondria | The energy for the cell is produced in this part of a cell. | 
| Chloroplasts | The organelles where photosynthesis takes place in the plant cell. | 
| Prokaryotic | Type of cells that do not have membrane bound organelles (ex. bacteria). | 
| Eukaryotic | Type of cells that have membrane bound organelles (ex. animal or plant cell). | 
| Homeostasis | The process of maintaining a constant internal environment. | 
| Passive transport | Transport that does not require energy because particles are moving from areas of high concentration to areas of low concentration. | 
| Diffusion and osmosis | Examples of passive transport. | 
| Active transport | Transport that requires energy because particles are moving from areas of low concentration to areas of high concentration. | 
| Mitosis | The process of cell division in body cells (somatic cells) in which diploid cells are produced. | 
| Meiosis | The process of cell division in gametes (sex cells) in which haploid cells are produced. | 
| Zygote | A fertilized egg that is the result of the fusion of a sperm and an egg. | 
| Gametes | Sex cells | 
| Somatic cells | Body cells |