A defect in protein trafficking within the ER will affect all of the following c

Question

A defect in protein trafficking within the ER will affect all of the following compartments except__________________ Plasma membrane proteins are first inserted in the membrane within the________________ The trafficking of all secreted proteins starts in the_____________________ All proteins destined to the______________are first released in the cytosol The endomembrane system includes all of the following except____________ Which of the following refers to the process by which proteins return from the Golgi back to the ER?

Explanation / Answer

There are two ways for transport of proteins to various destinations in the cell. Endomembrane system delivers through ER--Golgi. The free ribosomes make protein that is destined for cytosol, mitochondria, chloroplast and peroxisomes. thus if a defect in protein trafficking within ER occurs, it won't affect protein transport to mitochondria, chloroplast, peroxisomes and cytosol.

plasma membrane proteins are first inserted into the Endoplasmic membrane.

The trafficking of all secreted proteins starts in the Endoplasmic reticulum because the secretory proteins are produced by the ribosomes attached to the endoplasmic reticulum

The cytosolic ribosomes translate proteins destined for mitochondria, chloroplast, peroxisome and cytosol

Endomembrane system doesn't include mitochondria, chloroplast and peroxisome

the process by which Golgi transports proteins back to the ER is called retrograde transport

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