A protein that is secreted from the cell takes which...

A protein that is secreted from the cell takes which pathway? a. Rough ER $\rightarrow$ transport vesicle $\rightarrow$ Golgi $\rightarrow$ secretory vesicle $\rightarrow$ plasma membrane b. Cytosol $\rightarrow$ plasma membrane c. Smooth $\mathrm{ER} \rightarrow$ rough $\mathrm{ER} \rightarrow$ transport vesicle $\rightarrow$ Golgi $\rightarrow$ lysosome d. Golgi $\rightarrow$ transport vesicle $\rightarrow$ rough ER $\rightarrow$ transport vesicle $\rightarrow$ lysosome $\rightarrow$ plasma membrane

A protein that is secreted from the cell takes which pathway?
a. Rough ER $\rightarrow$ transport vesicle $\rightarrow$ Golgi $\rightarrow$ secretory vesicle $\rightarrow$ plasma membrane
b. Cytosol $\rightarrow$ plasma membrane
c. Smooth $\mathrm{ER} \rightarrow$ rough $\mathrm{ER} \rightarrow$ transport vesicle $\rightarrow$ Golgi $\rightarrow$ lysosome
d. Golgi $\rightarrow$ transport vesicle $\rightarrow$ rough ER $\rightarrow$ transport vesicle $\rightarrow$ lysosome $\rightarrow$ plasma membrane

Key Concepts

Vesicular Transport

Vesicular transport refers to the use of membrane-bound vesicles to move proteins and other molecules between different compartments within the cell. After processing in the ER and Golgi apparatus, proteins are packaged into transport vesicles, which then travel to and fuse with the plasma membrane to release their contents outside the cell.

Golgi Apparatus

The Golgi apparatus is an organelle that further processes proteins received from the ER. It is responsible for modifying, sorting, and packaging proteins into vesicles. These modifications can include further glycosylation and tagging with specific signals that direct the proteins to their correct destination, such as the plasma membrane.

Secretory Pathway

The secretory pathway is the process by which proteins are synthesized, modified, and transported out of the cell. This pathway involves a series of steps starting from the endoplasmic reticulum (ER), where proteins enter the lumen during synthesis, followed by modifications and sorting in the Golgi apparatus, and finally packaging into vesicles that fuse with the plasma membrane for secretion.

Rough Endoplasmic Reticulum

The rough endoplasmic reticulum (ER) is a cellular organelle studded with ribosomes, where proteins destined for secretion or membrane localization are synthesized. Proteins entering the rough ER are co-translationally translocated into its lumen, where they begin receiving modifications such as folding and glycosylation.

Transcript

Please give Ace some feedback