| A | B |
| controls functions of the cell (the brain of the cell) | nucleus |
| the fluid within the cell | cytoplasm |
| organelle inside the nucleus containing a mass of chromatin and makes ribosomes | nucleolus |
| moves proteins and other substance through the cell | endoplasmic reticulum |
| green organelles that change light into energy | chloroplasts |
| outer barrier that protects the cell membrane of plant cells | cell wall |
| organelles that contain digestive enzymes to breakdown waste products | lysosomes |
| organelles that make proteins | ribosomes |
| organelle in plant cells that stores water and helps support the cell structure | central vacuole |
| oganelle that packages and distributes proteins | golgi apparatus |
| substance in the nucleus that contains genetic information | chromatin or DNA |
| short hairlike sensory structures that protrude (stick out) from the cell | cilia |
| organelle that is the powerhouse of the cell because it converts energy into ATP | mitochondria |
| molecules that make up the lipid bilayer of the cell membrane | phospholipids |
| proteins in the membrane that larger polar molecules have to go through | transport proteins |
| double membrane that surrounds the nucleus | nuclear envelope |
| some molecules are allowed through the membrane while others are not is... | selective permeability |
| the plasma membrane is free to move because it is | fluid |
| the plasma membrane is made up of many different parts just like a | mosaic |
| 3 characteristics which determine if a molecule can get across the membrane easily (without going through a transport protein) | size charge polarity |
| 2 forms of active transport | endocytosis and exocytosis |
| molecules move from an area of high concentration to an area of low concentration | diffusion |
| diffusion of water | osmosis |
| state where there is no gradient but molecules do keep moving | dynamic equilibrium |
| solution with a high concentration of solutes | hypertonic |
| solution with a low concentration of solutes | hypotonic |
| solution or state where concentrations are equal inside and outside a cell | isotonic |
| force of water inside a plant cell | turgor pressure |
| loss of water from plant cells | plasmolysis |
| passive transport with help from a transport protein | facilitated diffusion |