NEET BIOLOGY

Detailed explanation-1: -Proteins are sorted into the regulated secretory pathway in the trans Golgi network, where they are packaged into specialized secretory vesicles. These secretory vesicles, which are larger than other transport vesicles, store their contents until specific signals direct their fusion with the plasma membrane.

Detailed explanation-2: -The organelle that packages proteins before they leave the cell is the Golgi apparatus. The Golgi apparatus will receive proteins from the endoplasmic reticulum via its cis face, and then package them and modify them in various ways.

Detailed explanation-3: -While many types of cells contain only one or several Golgi apparatus, plant cells can contain hundreds. Secretory proteins and glycoproteins, cell membrane proteins, lysosomal proteins, and some glycolipids all pass through the Golgi apparatus at some point in their maturation.

Detailed explanation-4: -Golgi bodies receive the proteins produced by the endoplasmic reticulum. It helps in the packaging and transportation of these proteins to various parts of the cell. Hence, it is called the post office of the cell.

Detailed explanation-5: -Protein cargo moves from the ER to the Golgi, is modified within the Golgi, and is then sent to various destinations in the cell, including the lysosomes and the cell surface. The Golgi processes proteins made by the endoplasmic reticulum (ER) before sending them out to the cell.