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Cells
Every term in chapter 7
| Question | Answer |
|---|---|
| Cell | Basic unit of life |
| Cell theory | Fundamental concept of biology that states- 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. |
| Nucleus | A large membrane-enclosed structure that contains the cells genetic material in form of DNA. |
| Eukaryote | Cells that contain nuclei. |
| Prokaryote | Cells that do not contain nuclei. |
| Organelle | Cells that act as if they are specialized organisms. |
| Cytoplasm | The portion of the cell outside the nucleus. |
| Nuclear envelope | The cooating around cell that allows material to move in and out of the cell. |
| Chromatin | The granular material seen in nucleus. Consist of DNA bound to protein. |
| Chromosomes | The granular material seen in a nucleus. |
| Nucleolus | The small, dense region in a nuclei.Where ribosomes begins. |
| Ribosomes | Small particles of RNA and protein found throughout the cytoplasm. Produces protein by following coded instructions that came from the nucleus. |
| Endoplasmic Reticulum | The site where lipid components of the cell membrane are asssembled, along with proteins and other materials that are exported from the cell. |
| Golgi Apparatus | The function of the golgi apparatus is to modify, sort, and package proteins and other materials from the endoplasmic reticulum for storage in the cell or secretion outside the cell. |
| Lysosomes | Small organelles filled with enzymes.Break down lipids. |
| Vacuoles | Sacklike structures that store materials such as water, salts, proteins, and carbs. |
| Mitochondria | Organelles that convert the chemical energy stored in food into compounds that are more convenient for the cell to use. |
| Chloroplasts | Organelles that capture the energy from sunlight and convert it into chemical energy in a process called photosynthesis. |
| Cytoskeleton | Supporting structure that gives eukaryote cells their shape and internal organization. |
| Centrioles | Located near the nucleus and organise cell division. Not found in plant cells. |
| Cell Membrane | Sometimes called the plasma membrane because many cells in the body are in direct contact with the fluid portion of the blood-the plasma. |
| Cell Wall | Strong supporting layer in a cell around the membrane. |
| Lipid bilayer | The double layered sheet composition of nearly all cell membranes. |
| Concentration | The mass solution in a given volume of sollution, or mass/volume. |
| Diffusion | When particles move from a more concentrated area to a less conentrated area. |
| Equilibrium | The concentration of a solute is the same througout a system it reaches equilbrium. |
| Osmosis | The diffusion of water through a selectively permeable membrane. |
| Isotonic | When solutions (water and sugar)will be same on both sides of membrane. Means "same strength" |
| Hypertonic | The more concentrated sugar. "more strength" |
| Hypotonic |