| A | B |
|---|
| nucleus | the control center of the cell; contains the DNA of the cell |
| nucleolus | small circular structure(s) within the nucleus; helps produce ribosomal RNA that makes up ribosomes |
| chromatin | genetic material found in the nucleus; make of DNA and proteins |
| mitochondria | where energy in the form of ATP is produced |
| ribosomes | where amino acids are assembled into polypetides (proteins) |
| endoplasmic reticulum | transport system in the cell made of interconnected canals and tubules |
| Golgi complex | synthesizes carbohydrates and packages molecules for secretion like lipids and glycoproteins |
| lysosome | contains specialized enzymes that breaks down large molecules and cell parts |
| cell membrane (plasma membrane) | semi-permeable; it controls what moves in and out of the cell |
| vacuole | stores and relesases wastes, water, food |
| rough endoplasmic reticulum | assists in protein synthesis by helping proteins fold into their unique shapes |
| smooth endoplasmic reticulum | metabolizes nonpolar compounds such as steroids and stores Ca2+ in skeletal muscle cells |
| cytoplasm | jellylike, watery substance in which chemical reactions occur |
| peroxisomes | contains enzymes that detoxify harmful molecules and breaks down hydrogen peroixide |
| microfilaments and microtubules | protein tubes used to support the cytoplasm and transport materials |
| cilia and flagella | moves particles along cell surface or move the cell |
| nuclear envelope | controls the passage of molecules between nucleus and cytoplasm (like RNA) |
| cytosol | fluid portion of cytoplasm |
| fluid-mosaic model | idea of how the membrane is composed; made of diverse molecules in a changing pattern |
| microvilli | numerous folds in the cell membrane to increase absorption surface area |
| organelles | name used for cell parts |
| cytoskeleton | collective name for microfilaments an microtubules that give cytoplasm its structure |
| inclusions | collection of stored chemicals in certain cells; like glycogen in liver cells |
| cristae | many folds of mitochrondria to increase surface area |
| matrix | inside of organelles; like the mitochondria |
| rRNA | part of ribosomes; is a ribozyme because if serves as an enzyme to catalyze protiens |
