Organelle functions

Prokaryotic cells

no membrane bound organelles, no nucleus

Eukaryotic cells

membrane bound organelles

*Cytoskeleton

important for shape of the cell

suspends organelles into cytoplasm

*Nucleus

directs everything inside the cell (reproduction, regulation of cells activites, controls protein synthesis)

*Centrioles

made up of microtubules arranged in triplets

helps with cell division and cell motility

*Cilia & Flagella

only found in animal cells

move cell through fluid (cell movement) or move fluid over cell

*Mitochondria

Powerhouse of the cell (where ATP is made)

Cristae (the fold in the inner membrane)

Matrix (fluid inside the mitochondrian)

Ribosomes

‘protein factory’ makes proteins and assembles amino acids

Endoplasmic Reticulum

helps cells transport, aid protein synthesis if ribosomes are there (can’t make proteins by itself)

Golgi bodies

the cells main processing, packaging, and shipping center

Lysosomes (only in animal cells)

“suicide bags”

serves as a waste disposal system (breaking down macromolecules, old cell parts)

Plastids (plant cells only)

functions for photosynthesis carried out by chloroplasts to take energy from sun to make glucose

Vacuoles

storage of water, nutrients, waste, and pigments, as well as waste disposal and maintaining cell turgor pressure