Question

Which one of the following organelles typically receives proteins that were translated directly into the ER?

Chloroplast

Cytosol

Golgi apparatus

Peroxisome

Mitochondria

Answer 1

Answer: The organelle which receives proteins that were translated directly into the ER is Golgi apparatus

Explanation: ER and Golgi apparatus are the part of the endomembrane system (besides nuclear membrane, lysosomes, plasma membrane) inside the cell which is responsible for synthesizing, packing and transporting various molecules inside the cell or outside the cell. ER is the organelle which is in continuation with the nuclear membrane, it can be smooth ER when it does not possess ribosomes or rough ER (RER) when it has ribosomes on it. The function of RER is to produce proteins by the process of translation.

Golgi apparatus is the sack of cisternae present within the cell, the vesicles coming from the endoplasmic reticulum (ER) fuse with the Golgi bodies and deliver their contents to it.

In the Golgi apparatus, there are different types of enzymes located at different places which carry out further processing of the material received from ER, the proteins received from ER are transported by the Golgi body to different parts of the cytosol or to the outside of the cell after modifications like glycosylation.