Question | Answer |
cell | the basic unit of life. all living things today are made of cells or cell products. |
cell membrane | the outer barrier of a cell.separates a cell from its enviroment.
usually composed of phosphoilpids.allows for selective passage of some molecules |
vesicle | a membranous usually fluid-filled sac |
organic molecule | molecules containing carbon,usually associated with living things.examples of organic molecules found in tested mediorite:hydro carbons,aminoacids, fatty acids, and protiens |
mediorite lab | a scientist found that vecicles may have been the start of life. |
all living things | are amde of cells,made of polymers which are made of monomers(molecules) |
amino acids | are the monomers of protiens. |
sugars | are the monomers ofcarbohydrates |
fatty acids,glyceroles, and phosphates are the monomers of lipids | are the monomers of lipids |
a limited number of elements are found in the molecules that make up all living things. | the three most common are hydrogen oxygen and carbon |
phospholipids help make cell membranes. cell membranes are important because | they control what enters and leaves the cell and they separate cells from their enviroment. |
there are three main parts of the definiton of life: | made of cells or contains membranes or enclosures.uses energy to grow (metabloisim).
has the ability to grow over time |