Test four pre class quizzes

Match the following
a. oxidative breakdown of toxic molecules
b. synthesis of most lipids, synthesis of proteins for distribution to many organelles and the plasma membrane
c. ATP synthesis and oxidative phosphorylation
d. intracellular degradation
e. mod

a. oxidative breakdown of toxic molecules
perioxisomes (a)
b. synthesis of most lipids, synthesis of proteins for distribution to many organelles and the plasma membrane
endoplasmic reticulum (b)
c. ATP synthesis and oxidative phosphorylation
mitochondria

Name the organelle that translates proteins in the cytosol.
Select one:
a. ribosome
b. peroxisome
c. nucleus
d. mitochondria
e. endoplasmic reticulum

a. ribosome

Which of the following are ways in which proteins can be sorted into organelles?
Select one:
a. all of the above
b. vesicular transport
c. nuclear import
d. protein translocators

a. all of the above

Which protein cleaves the signal sequence of soluble ER and mitochondrial proteins?
Select one:
a. nuclear import protein
b. signal recognition particle
c. protein traslocato
d. signal peptidase
e. chaperone proteins

d. signal peptidase

Which of the following membrane-enclosed organelles are enclosed by a double membrane?
Select one:
a. golgi apparatus
b. lysosome
c. mitochondria
d. all of the above
e. endoplasmic reticulum

c. mitochondria

Which of the following proteins initially recognizes the mitochondrial sorting signal of proteins destined for the mitochondria?
Select one:
a. protein translocator
b. import receptor protein
c. signal recognition particle
d. signal peptidase
e. chaperone

b. import receptor protein

Which of the following proteins thread unfolded proteins through the membranes of the ER, mitochondria, and chloroplasts?
Select one:
a. protein translocator
b. import receptor protein
c. chaperone proteins
d. signal peptidase

a. protein translocator

Ribosomes are covalently attached to the ER.
Select one:
True
False

False

Which cytosolic protein initially recognizes the signal sequence of a protein destined for the ER?
Select one:
a. signal recognition particle
b. import receptor protein
c. chaperone protein
d. protein translocator

a. signal recognition particle

The _____________________ sequence is a set of hydrophobic amino acids that signal the transfer of the protein through the ER membrane to stop.
Select one:
a. the start transfer sequence
b. the stop transfer sequence

b. the stop transfer sequence

Vesicular tranport facilitates movement of proteins through the endomembrane system of a cell.
Select one:
True
False

True

Vascular transport
Select one:
a. facilitates movement of proteins from the ER to the golgi
b. facilitates movement of proteins into the cell
c. all of the above
d. facilitates moment of proteins to the exterior of the cell

c. all of the above

Which of the following are function of the protein coat on vesicles?
Select one:
a. help capture molecules for transport
b. vesicle docking
c. vesicle recognition
d. vesicle fusion

a. help capture molecules for transport

______ is the name of the coat protein that coats vesicles transporting proteins in to the cell by endocytosis.

Clathrin

_______is the name of the protein that, during vesicle budding, binds to the cargo receptor and recruits clathrin.

Adaptin

Match the term with its most appropriate description:
a. transport vesicles pinch off from larger membranes
b. recognition between vesicle and target membrane
c. close, secure association between vesicle and target
d. vesicle and target membrane become on

a. transport vesicles pinch off from larger membranes
Vesicle budding
b. recognition between vesicle and target membrane
Vesicle tethering
c. close, secure association between vesicle and target
Vesicle docking
d. vesicle and target membrane become one me

Match the protein with its correct function.
a. protein located on the target membrane that facilitates docking and fusion
b. protein located on the vesicle that facilitates docking and fusion
c. located on the target membrane, binds to recognition protei

a. protein located on the target membrane that facilitates docking and fusion
t-SNARE
b. protein located on the vesicle that facilitates docking and fusion
v-SNARE
c. located on the target membrane, binds to recognition protein on the specific vesicle
tet