| A | B |
|---|
| nucleus | controls the cell's activities and contains the DNA |
| cell membrane | a thin flexible layer around the cell the protects the cell |
| cell wall | a strong layer around the cell membrane that protects the cell; these aren't found in animals |
| cytoplasm | the material inside the cell membrane, jelly-like & the organelles float around in this |
| prokaryotes | have cell membranes and cytoplasm, but do not have a nuclei - bacteria are this |
| eukaryotes | these cells contain a nucleus, a cell membrane, and cytoplasm |
| organelles | these things perform important cellular functions - they are assigned a job inside the cell |
| chromatin | granular material visible inside the nucles and is made of DNA connected to protein |
| chromosomes | when a cell divides, these are formedand they are threadlike structures containing genetic information that is passed on |
| nucleolus | the small dense region inside the nuclues when the ribosomes are assembled |
| nuclear envelope | a double membrane that surrounds the nucleus and it has tiny pores in it to allow material to move in and out of the nucleus |
| cytoskeleton | supports the structure of the cell - gives the cell it's shape |
| microtubules | hollow tubes of protein that serve as tracks that the protein travels on through-out the cell |
| microfilaments | long thin fibers that help in the movement of the cell |
| ribosomes | proteins are made on here and the nucleus gives this thing the instruction on how to make the protein |
| endoplasmic reticulum | this is the organelle in which all components of the cell membrane are made |
| gogli apparatus | the proteins that are made by the endoplasmic reticulum are moved into stacks to be stored called this.... |
| lysosomes | these are small organelles filled with enzymes and their job is to break down food to be used by the cell |
| vacuoles | a storage area that is used by the cell which keeps in water and salts and proteins to be used by the cell |
| chloroplasts | found in plants and not animals-this uses the energy from sunlight to make food for the plant |
| photosynthesis | the making of food by a plant |
| mitochondria | these organelles help release stored food for the cell to use so the cell can grow |
| lipid bilayer | this gives the cell membrane a tough flexible structure to keep it safe from its surroundings |
| concentration | the mass of solute in a given volume of solution |
| diffusion | when molecules move from an area when they are more them to an area where there are less of them so that a balance is obtained |
| selectively permeable | this is where some substances can pass across a membrane and some things can't |
| osmosis | this is when water molecules pass through a selectively permeable membrane |
| facilitated diffusion | the diffusion of glucose across a cell membrane |
| endocytosis | the process of taking material into a cell by folding or making pockets in the cell membrane |
| phagocytosis | when large particles are taken in to a cell by endocytosis |
| exocytosis | the removal of large amounts of material from the cell |
| cell specialization | the separate roles for each type of cell is called this... |
| tissue | a group of cells that perform a particular function |
| organs | a group of tissues that work together |
| organ system | a group of organs that work together to perfrom a certain function |
