bioo


why do cells divide


they want to stay small because they function better


what is the largest single celled organism


giant amiba


cellular communication is more effective in a


smaller cell


the larger a cell becomes:


the more demand the cell places on its DNA


the smaller the cell:


the more effective it is


what is the equation for surface area


L*W*#of sides


what is the equation for volume


L*W*H


what is the ratio about when it comes to size of cells


surface area : volume


about the ratio of surface area to volume: what increases faster?


volume increases faster than surface area


what happens to the ratio as the cell grows?


decreases making it very difficult to transport nutrients in and waste out


what are the 3 parts of the cell cycle? what happens in each


interphase: chromosomes tighten, cell growsmitosis: 4 parts, divides it nucleuscytokinesis: divides cytoplasm


as organisms grow and develop,


the size of the cells don't change, just the quanity


when do daughter cells form


when one cell divides into two


how many chromosomes do human cells have?


46


what are somatic cells


cells in your body that don't include reproductive cells


how many chromosomes in reproductive cells


23


what are chromosomes made out of?


DNA and protein


when are chromosomes visible?


during cell division/mitosis


when does a cell copy its chromosomes?


interphase


where does a cell spend most of its life? and how long


interphase-75%