Eukaryotic cells 2 - Protein Transport Flashcards
what is the endoplasmic reticulum
network of membranes inside a cell through which proteins and other molecules move
What are ribsomes made from
ribsomal RNA and protein
What is the main type of ribsomes found in eukaroytic cells
80S
What does the S stand for
Svedberg - unit measured how quickly particles settle in the centrifuge
What does the rate of sedimentation depend on
size and shape of the particle
what are 80s ribsomes broken down into
40S small subunit and 60s large subunit
What is the ratio of RNA: Protein in 80s ribsomes
1:1
Where can 70S ribosomes be found
prokaroytic cells and in the chroplasts of plant cells
Where are 70s ribosomes found
Prokaroytic cells and chlorplasts
What are 70’s ribosomes made up of
small 30S subunit and a larger 50s subunit
What is the ratio of RNA protein in 70S ribosomes
2:1
Where are 70S ribsomes reproduced
In the mitochondria and chloroplasts independently when a cell divides
What are 80S ribosomes
Main type of ribsomes dound in eukaroyic cells , consisting of ribosmal RNA and protein, made up of a 60S and a 40S subunit
They are at the site of protein synthesis
What are 70S ribsomes
Found in the mitochondria and chloroplasts of eukaryotic cells in the porkaytoic organisms
What is rough endoplasmic reticulum (RER)
they are coverd in 80S ribosomes and which is involved in the production and transport of proteins