composed of many cells that may organize into tissues, organs, organ systems
what is multicellular?
composed of one cell
what is unicellular?
what is a cell membrane?
what is cytoplasm?
protects the DNA and controls the cell activities
what is a nucleus?
the most basic unit of life (where life begins)
name one of the three principles of the cell theory
what is all living things are made of cells
what is cells are the basic unit of life
what is cells come from other cells
what are lysosomes?
storage center for water, nutrients, waste)
what are vacuoles?
makes proteins
what are ribosomes?
type of cell with no nucleus and no membrane bound organelles
what is a prokaryotic cell?
type of cell with a nucleus and membrane bound organelles
what is a eukaryotic cell?
makes lipids (membrane)
what is smooth er?
makes proteins and packages them for secretion
what is rough er?
makes rRNA which makes up ribosomes
what is nucleoulus?
moves the entire cell through extracellular fluid
what is flagella?
shorter, tiny like oars that move fluid across a cell's surface
what is cilia?
processes, sorts, and ships proteins where needed
what is golgi apparatus?
where cellular respiration happens; breaks down food to release energy as ATP
what is mitochondria?
where photosynthesis happens; converts enegy from the sun into energy in sugar
what is chloroplast?
type of cell that goes thru mitosis for division
what is eukaryoic cells?
type of cell that can be unicellular only
provide structual support for the animal cells that do not have a cell wall
what is cytoskeleton?
protect and maintain shape; made of cellulose in plants, chitin in fungi, and peptidoglycan in bacteria
what is the cell wall?
what are centrioles?