AP BIOLOGY

Detailed explanation-1: -The endoplasmic reticulum (ER) is the transport network for molecules targeted for certain modifications and specific destinations, as compared to molecules that will float freely in the cytoplasm. The ER has two forms: the rough ER and the smooth ER.

Detailed explanation-2: -The endoplasmic reticulum (ER) is, in essence, the transportation system of the eukaryotic cell, and has many other important functions such as protein folding. It is a type of organelle made up of two subunits – rough endoplasmic reticulum (RER), and smooth endoplasmic reticulum (SER).

Detailed explanation-3: -Endoplasmic Reticulum is mainly responsible for the transportation of proteins and other carbohydrates to another organelle, which includes lysosomes, Golgi apparatus, plasma membrane, etc.

Detailed explanation-4: -The endoplasmic reticulum (ER) is a large membrane-bound compartment spread throughout the cytoplasm of eukaryotic cells. It is divided into three major morphologies that include the nuclear envelope (NE), peripheral ER cisternae, and an interconnected tubular network (Fig. 1A, B).

Detailed explanation-5: -Secretory proteins, most of which are glycoproteins, are transported through the endoplasmic reticulum membrane. One of the functions of the ER is to act as a channel for material transport between different regions of the cytoplasm or between the cytoplasm and the nucleus.