2. cells Flashcards
cells
the smallest unit from which all organisms are made
cell membrane
a very thin layer surronding the cytoplasm of every cell that controls wat enters and leaves the cell
cell wall
a tough layer outside the cells membrane (in plants, fungi,bacteria only)
cytoplasm
a jelly-like material that fills a cell
vacuole
a fluid-filled space inside a cell seperated from the cytoplasm by a membrane
cell sap
the fluid that fills the large vacuole in plant cells
vesicle
a very small vacuole
nucleus
a structure containing DNA in the form of chromosomes
chromosome
a length of dna found in the nucleus of a cell that contains genetic info in the form of many diff genes
dna
a molecule that contains genetic info in the form of genes that controls the proteins that r made in the cell
chloroplast
small structures inside which photosynthesis takes place
mitochondria
a small structure in a cell where aerobic respiration release energy from glucose
ribosomes
very small structures in a cell tht use info on dna to make protein molecules
plasmids
small circular molecules of dna found in many prokaryote cells in addition to the main much larger circle of dna
tissue
a group of similar cells that work together to perform a particular function
