organelles Flashcards
what is the function of mitochondria?
- energy production
- synthesis of proteins using own DNA
whats the function of endoplasmic reticulum?
- calcium storage
- lipid production
- synthesis of proteins targeted to the plasma membrane
whats the function of golgi apparatus?
- modification of proteins and lipids from the er
- transfer of proteins to other organelles
whats the function of lysosomes?
digestion of unwanted organelles
function of peroxisomes?
oxidative reactions
which complexes are help proteins get from the cytosol to the interior of the mitochondria?
TIM
TOM
where do all proteins originate?
on ribosomes in the cytosol (except some mitochondrial proteins).
where do most proteins remain?
in the cytosol
how are proteins moved to organelles?
using sorting signals
what are the three types of protein transport found in cells?
gates
transmembrane
vesicular
what is gated protein transport
moves through pores
what is transmembrane protein transport
cross the membrane into the lumen of the organelle
what is vesicular protein transport
membrane-enclosed transport of proteins from one organelle to another
moves through pores.
which complex helps move proteins from the inside of the mitochondria to the inner membrane or intermembrane space?
OXA
what happens with proteins that are destined for the lumen of the er?
- Translation is completed in the cytosol, and correctly folded protein is passed into the ER via Sec61 complex
- Translation starts in the cytosol and the growing amino chain is threaded into the ER via Sec61 complex
