front 1 Cell | back 1 A collection of living matter enclosed by a barrier that separates the cell from its surroundings: basic unit of all forms of life. |
front 2 Cell Theory | back 2 Idea that all living things are composed of cells. Cells are the basic unit of structure and function in living things and new cells are produced from existing cells. |
front 3 Cell Membrane | back 3 Thin, flexible barrier around the cell; regulates what enters and leaves the cell. |
front 4 Cell Wall | back 4 Strong, supporting layers around the cell membrane in plants, algae, and bacteria. |
front 5 Nucleus | back 5 Structure that contains all the cell's genetic material (DNA) and controls the cells activities. |
front 6 Cytoplasm | back 6 Material inside the cell membrane- not including the nucleus. |
front 7 Prokaryote | back 7 Unicellular organism lacking a nucleus. |
front 8 Eukaryote | back 8 Organism who's cell contains nuclei. |
front 9 Organelle | back 9 Specialized structure that performs important cellular functions within a eukaryotic cell. |
front 10 Chromatin | back 10 Granular material visible within the nucleus: consists of DNA tightly coiled around proteins. |
front 11 Chromosome | back 11 Threadlike structure within the nucleus containing the genetic information that is passed from one generation of cells to the next. |
front 12 Nucleolus | back 12 Small, dense region within most nuclei int which the assembly of proteins begins. |
front 13 Nuclear Envelope | back 13 Layer of the membranes that surrounds the nucleus of a cell. |
front 14 Cytoskeleton | back 14 Network of protein filaments within some cells that helps the cell maintain it's shape and is involved in many forms of cell movement. |
front 15 Microtubule | back 15 A tubular structure present in numbers in the cytoplasm of the ell, sometimes aggregating to form more complex structures. |
front 16 Microfilament | back 16 A small rod-like structure found in the cytoplasm of many eukaryotic cells. |
front 17 Ribosome | back 17 Small particle in the cell which proteins are assembled: made of RNA and protein. |
front 18 Endoplasmic Reticulum | back 18 Internal membrane in cells in which lipid components of the cell membrane are assemble and some proteins are modified. |
front 19 Golgi Apparatus | back 19 Stack of membranes in the cell that modifies, sorts, and packages proteins from the endoplasmic reticulum. |
front 20 Lysosome | back 20 Cell organelle filled with enzymes needed to break down certain materials in the cell. |
front 21 Vacuole | back 21 Cell organelle that stores materials such as waters, salts, proteins, and carbohydrates. |
front 22 Chloroplast | back 22 Organelle found in cells of plants and some other organisms that captures the energy from sunlight and converts it into chemical energy. |
front 23 Mitochondria | back 23 Cell organelle that converts chemical energy stored into compounds that are more convenient for the cell to use. |
front 24 Cell Specialization | back 24 The process in which cells develop in different ways to perform different tasks. |
front 25 Tissue | back 25 Group of similar cells that perform a particular function. |
front 26 Organ | back 26 Group of tissues that work together to perform closely related functions. |
front 27 Organ System | back 27 Group of organs that work together to perform closely related functions. |