PARTS OF THE CELL

Plasma membrane

External cell barrier, acts in transport or substances in and out of the cell

Mitochondria

Powerhouse of the cell

Ribosomes

Sites for protein synthesis

Rough ER

Connected to the Golgi apparatus

Smooth ER

Sites of lipid and steroid synthesis

Golgi apparatus

Packages, modifies and segregates proteins for secretion

Peroxisomes

Membranous sacs, enzymes detoxify a number of toxic substances

Lysosomes

Digestion, stomach of the cell

Microtubules

Supports of the cell and give its shape, forms the centrioles

Microfilaments

Fine filaments, involved in muscle contraction and other types of intracellular movement

Intermediate filaments

Resist mechanical forces acting on the cell, help form desmosomes

Centrioles

Paired cylindrical bodies

Nucleus

Control center of the cell

Nucleolus

site of ribosome subunit manufacture

Chromatin

keeps DNA NA organized, beeds on string

Nuclear Envelope

double membrane structure pierced by large pores