Cell biology Plz do as much as you can IO Secretory proteins movefrom the cis to

Question

Cell biology Plz do as much as you can IO Secretory proteins movefrom the cis to the medialto the tran. Onle? which ." dier-een-en eer-teed smaller vesicles. Which model for Golgi traffleking takes into account the bservation hhat secretory prote re t obneeved the flanking vesicles? A. Orthogonal compartment model ?? B. Transverse secretory model C. Cistermal maturation model. D. Vesicle transport model E. ERGIC model. 11. In classical receptor mediated endoeytosis, receptors are endoytosed with their ligands What sutonequent step conunes dissociation of the ligand from the receptor A. Acidification of the endosome ingulfment of the endosome by mitochodria C. Fusion of the endosome with the Golgi D. Destruction of the endosome by autophagy E. Uncoating of the endosome 12. Dynamic instability of microtubules means A. That subunits add and subtract from one end only and if it is not actively growing then it could collapse from that end. B. The whole microtubule can come apart at once and completely reform itself simultaneously all along its lenh. C. Subunits can add and subtract from both ends at different rates. D. Subunits can add from one end and subtract from the other. E. None of the above. 13. Which cytoskeletal system can take many forms including fibers throughout the cell, gel like networks at the leading edes of migrating cells, and other specialized structures such as the inside of intestinal microvilli A. Actin B. Microtubules C. Intermediate filaments D. Flagellin E. Basal bodies and centrosomes 14. The yeast model provided important biological insights into A. Brain development B. Cell-cell interactions C. Cell cycle D. Extracellular matrix E. All of the above 15. T cell receptors bind to A. MHC molecules B. Integrins C. B cell receptors D. Growth factors E. Extracellular matrix A. Ca" entry into the presynaptic terminal B. Action potentials C. Excitatory postsynaptic potentials D. Glutamate receptor binding E. Dendritic spine morphology changes 16. What event most specifically triggers release of synaptic vesicles

Explanation / Answer

Ans 10:

(C) cisternal maturation model

The cisternal maturation model explains the transport of proteins from cis face to trans face. According to this model, a cisternae matures from being a cis face cisternae to trans face one. It takes place due to changes in enzymatic content.

Ans 11:

(E) uncoating of the endosome.

Ans 12:

(E) none of the above (not sure)

Ans 13:

(A) actin

Ans 14:

(C) cell cycle

Ans 15:

(A) MHC molecules

Ans 16: (A) Ca++ entry into presynaptic terminal

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