| A | B |
|---|
| cell wall | support and protect |
| Plasma Membrane | Define cell boundary; regulation of molecule passage into and out of cell |
| Nuleus | Storage of genetic information synthesis of DNA and RNA |
| Nucleolus | Ribosomal formation |
| Ribosome | Protien synthesis |
| Endoplasmic reticulum (ER) | Synthesis and/or modification of proteins and other substances, and transport by vesicle formation |
| Rough ER | Protein synthesis |
| Smooth ER | Various; lipid synthesis in some cells |
| Golgi Apparatus | Processing, packaging, and distrbuting proteins and lipids |
| Vacuole and vesicle | Membranous sacs, storage of substances |
| Lysosome | Membranous vesicle containing digestive enzymes, intracellular digestion |
| Peroxisome | Membranous vesicle containing specific enzymes |
| Mitochondrion | Membranous cristae bound by an outer membrane, cellular respiration |
| Chloroplast | Membranous critae bound by two membranes, Photosynthesis |
| Cytoskeleton | Microtubules, intermediate filaments, actin filaments |
| Cilia and Flagella | 9+2 pattern of microtubules, movement of cell |
| Centriole | 9+0 pattern of microtubles, formation of basal bodies |
| Cell Wall | Contains cellulose fibrils |
| Plasma Membrane | Phospholipid bilayer with embeded proteins |
| Ribosome | Protein and RNA in two subunits |
| ER | Membranous, flattened channels and tubular canals |
| Peroxisome | Vasriou metabolic tasks |
| Diffusion | he movement of molecules from a higher to a lower concentration |
| Osmosis | The diffusion of water into and out of a cell |
| Facilitated Diffusion | Explains the passage of such molecules as glucoe and amino acids across the plasma membrane even though they are not lipid soluble |
| Active Transport | Molecules or ions move through the plasma membrane, accumulating either inside or outside of cell |
| Endocytosis | Vesicles often formed gy the Golgi and carrying a specific molecule, fuse with the plasma membrane as secrection occurs |
| Exocytosis | A portion of the plasma membrane invaginates to envelope the substances, and then the membrane pinches off to form an intacellular vesicle |
