| A | B |
| cell membrane | Protective layer that surrounds the cell and holds the cytoplasm in |
| Cell Wall | In plants only. supports cell. Made of Cellulose—a complex sugar that most animals can’t digest |
| Ribosomes | Small, numerous, made of RNA and protein. Make Protiens. |
| Endoplasmic Reticulum | System of folded membranes, like a maze. Provide a platform for chemical reactions including a place for ribosomes to park |
| Lysosomes | Small sacs of enzymes where food and other materials are broken down |
| Nucleus | Controls cell activities |
| Mitrochondria | Converts sugar to energy the cell can use |
| Chlorplasts | Plants only, convert sunlight to sugar |
| Nucleotide | Made of a sugar, phosphate and base |
| Codon | Three nucleotides to make one gene |
| Shape of DNA | Double helix |
| Shape of RNA | Single helix |
| cytoplasm | gooey liquid inside cell that all other stuff floats around in |
| chromatin | Material of which the chromosomes of organisms other than bacteria (i.e., eukaryotes) are composed. It consists of protein, RNA, and DNA. |
| chromosomes | Structures that carry the genetic information of the cell, in the nucleus |
| gas needed for cells to process food | oxygen |
| gas produced as waste product when cells process food | carbon dioxide |
| main organ of circulatory system | heart |
| tiny blood vessels where gas exchange occurs | capillaries |
| blood vessels the move away from the heart | Arteries (relative to heart) |
| blood vessels the move towards the heart | veins (relative to heart) |
| blood vessels color coded red | vessels carrying oxygen rich blood |
| blood vessels color-coded blue | vessels carrying oxygen depleted blood |
| systemic system | the circulatory system that serves the bodies cells |
| pulmonary system | the circulatory system that sends blood through the lungs |
| Digestive system | the system that breaks down food into smaller bits |
| lymphatic system | system that helps the body regulate water |
| another name for the circulatory system | the cardiovascular system |
| First level of organization after cells | tissues |
| What tissues are organized into | organs |
| what organs are organized into | organ systems |
| What organ systems are organized into | organisms (living things) |
| Function | a group of related actions that work together to complete a bigger action together |