chapter 3

Cards (10)

what is cell theory ?
unifying principle of biology
what two concepts is cell theory based on?
every living organism is composed of one or more cells
all cells living today came from a preexisting cell
what is the function of a cell membrane (plasma membrane)?
it regulates what enters and leaves the cell: provides protection and support
what is the function of a cytoplasm?
houses the cells organelles and is the site of many cellular processes
what is the function of the nucleus?
controls all cell activites: contains cells DNA
what is the function of the mitochondria? 
produces energy (ATP) for the cell through cellular respiration
what is the function of the endoplasmic reticulum?
synthesizes and transports proteins and lipids
what is the function of golgi apparatus? 
modifies, sorts, and packages proteins and lipids for transport
what is the function for lysosomes? 
breaks down waste materials and cellular debris
what is the function of vacuoles?
storage