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exam 3

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

#1
Front (Question)

which organelles are distinct compartments separated from the cytosol by at least 1 selectively permeable membrane?

Back (Answer)

• nucleus • endoplasmic reticulum • golgi apparatus • lysosomes • endosomes • mitochondria • peroxisomes

#2
Front (Question)

cytosol functions

Back (Answer)

• contains many metabolic pathways • protein synthesis • the cytoskeleton

#3
Front (Question)

nucleus functions

Back (Answer)

• contains many genome • DNA and RNA synthesis

#4
Front (Question)

endoplasmic reticulum functions

Back (Answer)

• synthesis of most lipids • synthesis of proteins for distribution to many organelles and to the plasma membrane

#5
Front (Question)

golgi apparatus functions

Back (Answer)

• modification, sorting, and packaging of proteins and lipids for either secretion or delivery to another organelle

#6
Front (Question)

lysosome functions

Back (Answer)

• intracellular degradation

#7
Front (Question)

endosome functions

Back (Answer)

• sorting of endocytosed material

#8
Front (Question)

mitochondria functions

Back (Answer)

• ATP synthesis by oxidative phosphorylation

#9
Front (Question)

chloroplast functions

Back (Answer)

• ATP synthesis and carbon fixation by photosynthesis

#10
Front (Question)

peroxisome functions

Back (Answer)

• oxidative breakdown of toxic molecules

#11
Front (Question)

how do proteins get in to the different compartments?

Back (Answer)

protein sorting

#12
Front (Question)

proteins are transported into organelles by what 3 mechanisms?

Back (Answer)

• nuclear import • across a membrane • vesicular

#13
Front (Question)

what directs proteins to the correct compartments?

Back (Answer)

signal sequences

#14
Front (Question)

what happens of a protein does not have a signal sequence?

Back (Answer)

it will remain in the cytosol

#15
Front (Question)

(vocab) chains of amino acids that bind to proteins and direct them

Back (Answer)

signal sequences

#16
Front (Question)

(vocab) recognize nuclear localization signal (NLS)

Back (Answer)

nuclear import receptors

#17
Front (Question)

nuclear proteins are imported from the cytosol through _______________________

Back (Answer)

nuclear pores

#18
Front (Question)

why does nuclear import receptor release cargo protein once it enters the nucleus?

Back (Answer)

Ran (GTP binding protein) binds to import receptor in nucleus, causing cargo protein to be released

#19
Front (Question)

Ran can only bind to import receptors when bound to what?

Back (Answer)

GTP

#20
Front (Question)

location of Ran GDP

Back (Answer)

cytoplasm

#21
Front (Question)

location of Ran GDP

Back (Answer)

nucleus

#22
Front (Question)

what is the full name for Ran-GEF

Back (Answer)

Ran Guanine Exchange Factor

#23
Front (Question)

what is the TOM

Back (Answer)

translocator of outer membrane

#24
Front (Question)

what is the TIM

Back (Answer)

translocator of inner membrane