Which of the following organelles is an irregular maze of interconnected spaces enclosed by a membrane that functions as the site where most cell membrane components, as well as materials destined for export from the cell, are made?
a. the golgi apparatus
b. the endoplasmic reticulum
c. lysosome
d. peroxisome
e. mitochondrion

The correct option is B. The endoplasmic reticulum

Explanation:

The endoplasmic reticulum is an organelle that is distributed through the cytoplasm of eukaryotic cells and is responsible for protein synthesis, membrane constituent lipid synthesis and participation in cell detoxification processes. This complex membranous system has a structure that is arranged in the form of flattened sacs and tubules that are interconnected with each other sharing the same internal space, and forming a kind of maze inside the cytoplasm. Within these flattened sacs there is a space called lumen that stores substances. Its membranes continue with those of the nuclear envelope and can extend to the vicinity of the plasma membrane, reaching more than half of the membranes of a cell.

The endoplasmic reticulum differs into two types of membranous systems of different structural characteristics and different functions: rough endoplasmic reticulum and smooth endoplasmic reticulum. Its contribution to life is fundamental and thanks to its operation, essential substances are synthesized and distributed for the correct metabolic functioning of the cell.

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