All Exams+ 1 new with some answers (1)pdf- Adobe Reader or 40. The pH of an endo

Question

All Exams+ 1 new with some answers (1)pdf- Adobe Reader or 40. The pH of an endosome/lysosome is A) Important for release of ligand from receptor B) 7 C) Greater than7 D) Less than 7 E) Both A and D 41. Exocytosis will have what effect on the size of the plasma membrane A) None B) It will get bigger C) It will get smaller D) Depends on the pH E) Depend on the cell type 42. What happens to the signal sequence recognized by SRP once it enters the ER Iumen A) Nothing B) It folds into the protein C) It gets phosphorylated ail

Explanation / Answer

40. pH of an endosome /lysosome is
Correct option:

Explanation: Endosome or lysosome helps in internalizing of foreign antigen like bacteria and destroys them due to its acidic environment. pH is maintained in the range of 6.5 to 4.5 inside the lumen of endosome or lysosome.

41. Exocytosis will have what effect on the size of the plasma membrane
Correct option:

Explanation: Exocytosis is a process during which the vesicles transport molecules from inside of the cell to outside. During the fusion process of the plasma membrane with the vesicle, there is a slight increase in the size of the plasma membrane.

42. What happens to the signal sequence recognized by SRP once it enters the ER lumen?
Correct option:

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