A&P LAB - parts of the cell

plasma membrane

flexible boundary

controls what enters/exits

extracellular matrix

network outside cell

structure & signaling

cytosol

fluid in cell

site of reactions

cytoskeleton

internal framework

shape, movement, transport

microtubules

hollow tubes

move organelles, spindle, cilia/flagella

microfilaments

thin fibers

shape, movement

intermediate filaments

strong cables

strength & stability

nucleus

control center

stores DNA

nuclear envelope

double membrane

protects DNA

nuclear pores

openings in envelope

allow RNA/proteins in & out

nucleolus

dense region inside nucleus

makes ribosomes

rough ER

membranes with ribosomes

makes proteins

smooth ER

membranes without ribosomes

makes lipids, detoxifies

golgi apparatus

stacked membranes

modifies, sorts, ships molecules

lysosomes

enzyme-filled vesicles

digest waste & old parts

transport vesicles

small sacs

move materials

vacuoles

storage sacs

store water & nutrients

mitochondria

double-membrane organelle

produces ATP (energy)

peroxisomes

small enzyme vesicles

break down toxins, fatty acids

ribosomes

protein factories (free/RER)

make proteins

centrosome (with centrioles)

microtubule organizer

cell division

cilia

short, many projections

move fluid or cell

flagella

long. few projections

cell movement