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A. The organelles through the secretory pathway exhibit differential pH. What wo

ID: 220217 • Letter: A

Question

A. The organelles through the secretory pathway exhibit differential pH. What would NOT be the reason for this differential pH?

The differential pH in Golgi pulls it towards the nucleus so that Golgi location is always next to the nucleus.

Lysosome keeps lower pH to facilitate the hydrolysis of macromolecules

pH in Golgi is lower than that of ER, which helps retrieving ER resident proteins

Acidic lysosome lumen triggers the activation of various hydrolases

B. ______________________ mediate the formation of intralumenal vesicles in multivesicular bodies

a. ESCRT Protein Complexes

b. COPII coat proteins

c. Cargo Receptors

d. COPI coat proteins

Explanation / Answer

A. The differential pH in Golgi pulls it towards the nucleus so that Golgi location is always next to the nucleus.

B. ESCRT protein complexes.

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