Walking into the student bakery your mouth begins to salivate. Within your saliv
ID: 3507582 • Letter: W
Question
Walking into the student bakery your mouth begins to salivate. Within your saliva is a glycoprotein that serves as a lubricant to help you move the food down your esophagus. Describe the organelles and process involved in the salivary gland cells to produce and release this lubricant. Is this a feedback mechanism? If so, explain what kind of feedback mechanism this is? Remember to include all the cellular organelles involved in the protein excretory pathway and how a protein gets sugars added before export.
Explanation / Answer
It is a secretary mechanism
Explanation:- The glycoprotein mucin forms a thick mucus that lubricates the oral cavity and hydrates food. Saliva contains many different kinds of proteins. The endoplasmic reticulum functions as a processing center for proteins. mRNA is translated to proteins on either free ribosomes or ribosomes bound to the ER, the polypeptide enters the endoplasmic reticulum, where it is processed and folded correctly. It then exits and is packaged into vesicles by the Golgi apparatus. These vesicles are then released to the outside of the cell via the secretory pathway. Since the salivary gland must secrete more proteins than other cells, it makes sense that it would need more endoplasmic reticulum
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