Of the following proteins that all associate with vesicles, which have membrane-spanning domains?
Choose one or more:
A. v-SNAREs
B. transporter proteins
C. coatomer proteins
D. t-SNAREs
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Of the following proteins that all associate with vesicles, which have membrane-spanning domains? Choose one or...
2. Tethering of a transport vesicle to a target membrane
involves all of the following players EXCEPT:
Group of answer choices
A. Rab effector proteins
B. SNAREs
C. Rab
D. GTP
3. Match the following proteins with a brief description of
their role in vesicle trafficking:
A. Coat Protein
B. required for constricting and closing vesicles
C. mediate the selective recruitment of both membrane and
soluble cargo molecules into the vesicle
D. aid vesicle targeting and mediate membrane fusion
E....
Question 1 1 pts Which of the following do not associate with motor proteins? O plasma membrane O actin filaments O intermediate filaments O microtubules O vesicles
Question 24 Which of the following categories of membrane proteins is most likely to have restricted lateral mobility in a membrane? enzyme transporter O anchor O receptor all are restricted Question 5 New membrane synthesis occurs by spontaneous aggregation of free phospholipids into a new bilayer incorporation of phospholipids into one face of a preexisting membrane and their specific redistribution by enzymes like flippases incorporation of phospholipids into both faces of a preexisting membrane at the same time formation of...
Which of the following statements regarding secretory vesicles is FALSE? Choose all that apply. - Constitutive secretion is considered to be the 'default pathway' through the endomembrane system - Regulated secretion is considered to be the 'default pathway' through the endomembrane system - Proteins destined for secretory vesicles (for regulated secretion) often aggregate in the lumen of the TGN. - The lumen of secretory vesicles is generally less acidic than the lumen of the TGN from which they originate. -...
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Thanks!
15–26. The proteins involved in vesicle transport must return to their starting place or be degraded. Otherwise you would fill the target membrane with the protein. Match each of the proteins on the left to its appropriate way of return listed on the right. Proteins methods of return A. no need to recycle B. released into cytoplasm C. recycled by vesicles - 15. Cargo receptors in the ER C. recycled by vesicles...
8. Which of the following is not a destination for vesicles leaving the Golgi apparatus? a. The plasma membrane b. The exterior of the cell c. Lysosomes d. Mitochondria 12 9. Proteins that fail to fold properly in the endoplasmic reticulum are removed by a process termed alled 10. Chloroplasts have three membranes: the inner membrane, the outer membranc, and the membrane. t I. Which of the following is not a protein translocon/translocase found in the mitochondrial inner or outer...
Which of the following statements are true? a. All membrane proteins are bound to the interior of the membrane. b. Both proteins and lipids undergo transverse diffusion from the inner to outer leaflets. c. Some proteins and lipids undergo lateral diffusion along the surface of the membrane. d. Carbohydrates are found covalently attached to molecules on the outside of the membrane. e. The term 'mosaic' describes a highly-ordered region of the membrane rich in cholesterol and sphingolipids.
hich of the following organelles are the destination for proteins synthetized by cytosolic ribosomes Peroxisomes, endoplasmic reticulum, and the Golgi apparatus The Golgi apparatus, lysosomes, and the nucleus Peroxisomes, mitochondria, and lysosomes Peroxisomes, mitochondria, and the nucleus Mitochondria, lysosomes, and the nucleus What is the fate of N-terminus signal peptide after it directs the protein to the ER translocator O It is linked to the transported protein by S-S bond It is cleaved and then released into the membrane It...
With regard to G proteins, which of the following is NOT true? A. Gsα triggers phospholipase C activation B. Gα subunits can hydrolyze GTP C. The Gβγ subunits block exposure of the G alpha switch domains D. Both the Gα and Gβγ subunits can interact with downstream target proteins to propagate signals. During the undershoot of the action potential, which IS NOT true? A. Sodium channel inactivation is the reason for the absolute refractory period. B. The undershoot arises because...
5. (9pts) You are studying an ER membrane protein, YFG1 (outlined in yellow), with three transmembrane domains (rectangles A, B & C at the amino acid positions according to the following map, connected by soluble domains (wavy lines): N-term 10 10 Com Amino acid position (not to scale) 30 60 80 140 160 310 ABCI YFG1 alkaline phosphatase To determine how the protein is arranged in the ER membrane, you construct a series of shortened YFG1 proteins that are connected...