Anatomy Cell Organelles

cytoplasm

jelly like fluid, protects and holds in place, mostly water

cell membrane

selectively permeable, phospholipid bilayer, (two layers: hydrophillic heads, hydrophobic tails), controls what goes in and out, communication and homeostasis

cytoskeleton

threadlike proteins, three types: microtubules, intermediate filaments, microfilaments, support shape and regular biochem. activities

centrioles

made of microtubules (they grow out), appear during cellular division, pull chorm. apart during anaphase

nucleus

genetic material, protect DNA, ribosomes are formed

ribosomes

proteins and rna, on rough er

rough er

ribosomes on surface, hug nucleus, membranes, sacs, makes and packages proteins, sends vesicles to golgi app (mini carts)

smooth er

no ribosomes, on ____, makes lipids, site of glycogen degradation, store ca +2

golgi app

folded membrane sacs, vesicles of proteins form rough er, processes, modifies, pack, sort, ship

lysosomes

hydrolytic enzymes, break down dead stuff apoptosis

vacuoles

smaller and numerous, storage for h2o and nutrients

mitocondria

2 parts folded inner membrane (cristae) and enzyme fluid (matrix) cellular respiration