| A | B |
|---|
| Cell Theory | 3 pricipals- 1. cells are basic unit of life 2. All organisms are made of one or more cells 3. All cells arise from existing cells |
| TEM | Transmission control Microscopes. Microscope that transmits electrons through a thin slice of an object. |
| Cell membrane | Surrounds the cell |
| Phospholipid | A type of lipid made from glycerol, 2 fatty acids and a phosphate group |
| Cytoplasm | A semifluid substance made primarily of water and organic compounds |
| Cytoskeleton | a network of protein fibers and tubes extending throughout the cytoplasm |
| nucleus | the control center of the cell |
| chromosomes | where cells genetic information is stored |
| nucleolus | Where ribosomes are formed |
| Ribosomes | Help make protein |
| Prokaryotes | Bacteria and thier relatives |
| eukaryotes | all other organisms, including plants and aniimals |
| endoplasmic reticulum or ER | is an extensive network of membranes that produces materials for the cell |
| Golgi apparatus | is a series of flat, membrane-bound sacs where molecules are sorted, oten modified, packaged and distributed to their destination |
| Mitochondria | Change the energy dtored in food compounds into a form useful for the cell |
| Lysosomes | Contain digestive enzymes that help break down large molecules of carbohydrates, proteins, and lipids |
| Cilia | are short hairlike projections that usually occur in large numbers on the surface of ceertain cells |
| Flagella | are long, tail-like projections |
| Cell wall | tough,rigid outer covering that protects a plant cell and helps maintain its shape |
| Chloroplasts | structures that enable the plant to make sugars through photosynthesis |
| Semipermeable membrane | lets certain molecules pass through and prevents others from crossing |
| Diffusion | is the random movement of molecules from higher to lower concentraion |
| Passive transport | The movement of a substance across a cell membrane without the input if the cells energy |
| Active transport | Uses cellular energy to move substaces across a membrane |
| Osmosis | The diffusion of water across a semi-permeable membrane |
| Exocytosis | Wastes and cell products are packaged by te golgi apparatus in sacs called golgi vesicles |
| Endocytosis | a portion od the cell membrane that surrounds desirable macromolecules that are outside the cell |
