| A | B |
|---|
| cells | basic unit of living orgnisms |
| electrolytes | many of the metals that can carry an electrical charge |
| interstitial fluid | something like seawater |
| generalized cell | demonstrates many typical features of a common cell |
| nucleus | a dense central body in most cells containing the genetic material of the cell |
| cytoplasm | cellular material outside the nucleus and inside the plasma membrane |
| DNA | blueprint for building the body |
| plasma membrane | fragile, tdransparent barrier that contains the cell contents and separates them from the surrounding environment |
| proteins | complex nitdrogenjous substance; the main building material of cells |
| nuclear envelope; aka: nuclear membrane | double membrane barrier that bounds the nucleus |
| nuclear pores | penetrate through fused regions |
| nucleoplasm | nuclear membrane encloses a jelly like fluid |
| nucleoli | one or more small, dark stainin, essentially round bodies |
| ribosomes | actual sites of protein synthesis |
| chromatin | when a cell is not dividing, its DNA is combined with protein and forms a loose network of bumby threads |
| chromosomes | barlike body of tightly coiled chromatin; visible during cell division |
| cell membrane | semi-permeable boundary around a cell |
| phospholipids | modified triglyceride containing phosphorous |
| cholesterol | steroid found in anima fats as well as in most body tissues; made by the liver |
| hydrophilic | "water loving" the polar heads of the lollipop-shaped phospholipid molecule |
| hydrophobic | "water hating" nonpolar tails |
| carriers | bind to a substance and move it through the membrane |
