Cell Structure and Function

cell membrane

semi-permeable boundary that surrounds and encloses the cell

cytoplasm

liquid interior of cell, includes the organelles

ribosome

organelle that is the site of protein production

prokaryote

a cell that does not have a nucleus, bacteria

eukaryote

a cell that has a nucleus, all cells except bacteria

nucleus

control center" of the cell, contains DNA

organelle

a cell part that performs a specific job

vesicle

a membrane bound bubble that transports materials

vacuole

large, membrane bound space that stores water and nutrients

chloroplast

organelle responsible for producing energy through photosynthesis

mitochondria

organelle that breaks down oraganic molecules to make cellular energy, the "power house" of the cell

golgi apparatus

oganelle responsible for packaging and transporting proteins

endoplasmic reticulum

series of flattened membrane sacs that transport materials around the cell

flagellum

tail" used for locomotion

tissue

several cells grouped together that have a similar function

organ

several tissues grouped together that have a similar function

organ system

several organs grouped together that have a similar function

multicellular

an organism that is made of more than one cell

colonial organism

a group of identical cells that live together but operate independently

nucleolus

a mass of RNA found in the nucleus that makes ribosomes

nuclear membrane

porous membrane that allows materials to enter and leave nucleus