| A | B |
|---|
| cell | basic unit of all living things |
| cell theory | all living things are made up of one or more cells, and come from other cells |
| eukaryotic cell | cell with specialized structures. have a nucleus |
| nucleus | controls the cell's activities and contains DNA |
| organelle | perform special functions within eukaryotic cells |
| plasma membrane | boundary that helps control what enters and leaves a cell |
| prokaryotic cell | simple cell without a nucleus |
| enzyme | protein that speeds up the rate of chemical reactions |
| chloroplast | plant organelle that captures light and converts it to a chemical |
| vacuole | storage compartment in a cell |
| cilium | short, hairlike projection that aids in locomotion |
| mitochondrion | converts energy to a form cells can use |
| centriole | organelle that aids in cell division |
| flagellum | long, hairlike projection that aids in movement |
| cytoplasm | semifluid material inside the organelles or plasma membrane in which processes take place |
| cytoskeleton | form a framework for the cell and provide an anchor for organelle |
| nuclear envelope | double membrane that surrounds the nucleus |
| ribosome | helps manufacture proteins |
| endoplasmis reticulum | site of ribosomes attachment |
| Gogli apparatus | modifies, sorts and packages proteins for transport outside of the cell |
| lysosome | contains substances that digest excess or worn-out organelles |
| centriole | structure near the nucleus that functions during cell division |
| mitochondrion | converts sugars into usable energy |
| cell wall | gives support to plant cells |
| homeostasis | regulation of internal environment to maintain a stable environment within the cell |
| endocytosis | the plasma membrane surrounds a substance outside the cell and moves it inside the cell |
| active transport | movement of substances from a region of lower concentration to a higher concentration |
| diffusion | movement of particles from an area where there are many to an area where there are fewer particles |
| hypertonic solution | solution with a higher concentration of solutes |
| isotonic solution | solution in which the inside of the cell and the solution on the outside have the same concentration of water and solutes |
| exocytosis | when the plasma membrane surrounds a substance and moves it inside the cell |
| osmosis | diffusion of water across a selectively permeable membrane |
| facilitated diffusion | transport that uses transport proteins to move ions and small molecules across a plasma membrane |
| dynamic equilibrium | when there is continuous movement but no overall change in concentration |
| hypertonic solution | solution that =has a lower concentration of solute in a cell |
