Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Cells
| Term | Definition |
|---|---|
| Cell | -the smallest unit that can live on its own and that makes up all living organisms and the tissues of the body |
| Osmosis | -the movement of water molecules through a selectively permeable membrane from a region of high water concentration to low water concentration |
| Cell Theory | -the cell theory states that all biological organisms are composed of cells; cells are the unit of life and all life come from preexisting life |
| Cell Wall | -a rigid layer of polysaccharides lying outside the plasma membrane of the cells of plants, fungi, and bacteria. In the algae and higher plants it consists mainly of cellulose |
| Cell Membrane | -separates the interior of the cell from the outside environment |
| Nucleus | -the central and most important part of an object, movement, or group, forming the basis for its activity and growth |
| Organelle | -any of a number of organized or specialized structures within a living cell |
| Ribosome | -a structure found inside cells that is involved in making proteins |
| Nucleic Acid | -large bio molecules that play essential roles in all cells and viruses |
| Selectively Permeable | -its ability to differentiate between different types of molecules, only allowing some molecules through while blocking others |
| Tissue | -any of the distinct types of material of which animals or plants are made, consisting of specialized cells and their products |
| Organ | -a part of an organism that is typically self-contained and has a specific vital function, such as the heart or liver in humans |
| Organ System | -a group of organs that work together to perform one or more functions |
| Endocytosis | -a process by which cells absorb external material by engulfing it with the cell membrane |
| Exocytosis | -the transport and fusion of secretory vesicles with the plasma membrane and the extracellular space |
| Cytoplasm | -the material or protoplasm within a living cell, excluding the nucleus |
| Mitochondria | -small structures in a cell that are found in the cytoplasm (fluid that surrounds the cell nucleus) |
| Endoplasmic Reticulum | -a network of membranous tubules within the cytoplasm of a eukaryotic cell, continuous with the nuclear membrane. It usually has ribosomes attached and is involved in protein and lipid synthesis |
| Golgi Apparatus | -a stack of small flat sacs formed by membranes inside the cell's cytoplasm (gel-like fluid) |
| Chloroplast | -plant cell organelles that convert light energy into relatively stable chemical energy via the photosynthetic process |
| Lysosome | -a sac-like compartment inside a cell that has enzymes that can break down cellular components that need to be destroyed |
| DNA | -the molecule inside cells that contains the genetic information responsible for the development and function of an organism |
| Passive Transport | -movement of a solute from a region of high electrochemical potential on one side of the cell membrane to a region of lower electrochemical potential on the opposite side |
| Active Transport | -the transport of molecules that require the use of energy, in the form of an energy-storing chemical called ATP (adenosine triphosphate) to help them cross the cell membrane |
| Diffusion | -a passive movement from an area of greater concentration to one of lesser concentration |
Created by:
Lily Tran
Popular Science sets