A | B |
cell membrane | present around ALL cells;allows only certain substances to enter and leave; gateway |
cell wall | encloses the cell membrane of plant cells; protects and supports plant cells |
chloroplasts | contain the green liquid pigment chlorophyll; capture sunlight for making food in plant cells |
chromosomes | location of instructions for all cell activities; directs cell activities; made of DNA |
cytoplasm | jelly-like material in which cell parts constantly move; area outside the nucleus of a eukaryotic cell |
endoplasmic reticulum (ER) | "tunnels" that transport material through the cytoplasm |
eukaryotic | cells with membrane-bound structures |
Golgi bodies | package and move proteins outside the cell |
lysosomes | contain digestive enzymes that break down food particles and waste |
mitochondria | "powerhouses" of cells; produce most of the energy of a cell |
nuclear membrane | surrounds the nucleus; allows substances to enter and leave the nucleus |
nucleus | controls all of the functions of plant and animal cells; control center |
prokaryotic | describes a cell that does not have a nucleus or anyother membrane-covered organelles; bacteria and some algae |
ribosomes | tiny structures in the cytoplasm where proteins are made |
vacuoles | mostly in plant cells; store water and nutrients for the cell; very large in plant cells; "storage tanks" |