LIFE SCIENCE

Detailed explanation-1: -ENDOPLASMIC RETICULUM • The endoplasmic reticulum (ER) is an extensive network of membranous tubules that extend from the nuclear envelope to the cell membrane. The ER provides passages throughout the cell for transporting, synthesizing, and storing materials. It serves as a mini circulatory system for the cell.

Detailed explanation-2: -The cytoplasm is a gel-like fluid in which the cell’s organelles are suspended and that transports materials within the cell. It’s analogous to the circulatory system in the body. The endoplasmic reticulum transports materials from one part of the cell to another, like the circulatory system in the body.

Detailed explanation-3: -Endoplasmic Reticulum The ER has two major functions: Transport: Molecules, such as proteins, can move from place to place inside the ER, much like on an intracellular highway. Synthesis: Ribosomes that are attached to ER, similar to unattached ribosomes, make proteins.

Detailed explanation-4: -The endomembrane system (endo = within) is a group of membranes and organelles in eukaryotic cells that work together to modify, package, and transport lipids and proteins. It includes the nuclear envelope, lysosomes, vesicles, endoplasmic reticulum and the Golgi apparatus, which we will cover shortly.

Detailed explanation-5: -Answer and Explanation: The network of channels within the cytoplasm of a eukaryotic cell that serves a variety of functions is called cytoskeleton.