Flashcards in C15 intracellular compartments Deck (20)
What formed ER membrane
invagination of plasma membrane
Organelles import proteins from cytosol through ?
Newly synthesized proteins are directed to proper locations by ?
Nuclear transport through nuclear pore summary
nuclear transport receptor hydrolyzes GTP to bind cargo protein. nuclear pore fibrils attach to receptor and assist in pulling cargo in. GTP binds to receptor releasing cargo. receptor leaves nucleus.
Protein import into chloroplast and mitochondria require ?
signal sequence and energy to unfold protein
Are used to direct mitochondrial and chloroplast proteins to appropriate cellular loaction
Proteins destined for ER contain signal sequence at ? terminal
Uses ER signal to direct ribosome to ER membrane
signal recognition particle
signal sequences are removed using ?
transmembrane proteins require ? or ? signals
stop-transfer or internal start-transfer
target vesicles to the right organelle. complementary v and t snares bind to each other
carbohydrates added as proteins are synthesized across ER.
modifications in golgi
carbohydrates added in ER removed. other carbs added. other modifications. aggregate and packed into vesicles.
unregulated vesicle membrane fusion
ingestion of fluid and molecules via small vesicles
ingestion of large particles by phagocytic cells
macrophages use ? when scavenging red blood cells
lysosome membranes are ? to prevent digestion
lysosomes have ph of 5 and contain many ?