Biology Last unit

Site of DNA replication and

Nucleus

Site of DNA replication, stores & transmits info

Ribosome

translation, site of protein synthesis

E.R

site of synthesis, processing and storage

Golgi Apparatus

site of protein sorting & shipping

cytoskeleton

provides structured support and serves as the tracks for transportation

Motor proteins

transport vesicles throughout the cell

transport vesicles

carry the cargo where they then need to go

are ribosomes organelles

no, they are considered molecular complexes

Instructions

Nucleus, N.P

Parts made and assembled

ribosome, E.R

Processing

Golgi, ER

Sorting and Barcoding

Golgi

Packaging

Golgi, vesicle

Delivery

cytoskeleton, T.V

Final destination

cell membrane, or other

Benefits of organelles

Chemical reactions more efficient

Chemical reactions segregation

Cell is protected

distinct sites for specialized function

increase surface area of membrane relative of cytosol

Prok

dont contain intracellular membrane bound organalles

have plasma membrane

defined by absence of nucleus

must fit many diff func

Nucleus Pore

highly selective for what processes through, regulates what exits and enters

to gain access a protein must exhibit a nuclear localization signal

Nuclear enevelope

a double membrane encloses nucleus

Proteins manufactured by free ribosome go where

remain in the cytosol or are sent to the nucleus

Proteins manufactured by ribosomes associated with Rough ER go where

destined for the cellular membrane, other organelles, or export

Rough ER

covered with ribosomes, protein manufacturing

smooth ER

lipid synthesis and processing

kinesin

carries cargo away from nucleus

mitochondria

power generating station, cellular transport takes energy

contain 2 membranes

contain their own circular DNA

Proteins carry Target sequences

that carry them to their cellular destination

Golgi proteins that leave through the rough ER

next pass through the golgi, newly synthesized proteins arrive on one side in a membrane bound vesicle

proteins are packaged and bar code for delivery