Answer:
Pepsinogen is produced by chief cells and is activated by hydrochloric acid secreted by parietal cells.
Explanation:
Pepsinogen is a proenzyme produced in the chief cells (that are located in the stomach lining) that, when gets activated, is transformed into pepsin - a peptidase with the function to degrade proteins into amino acids.
The reason why pepsinogen is released inactive is that it would break down all of the cell's proteins because of its proteolytic nature. For this reason, it is released as a proenzyme and gets activated when reaches the acidic environment provided by the hydrochloric acid secreted by the parietal cells, also in the stomach lining.
The display communicates that the males are from their own species and that they may not be from the same species group as the females.
plays the role in skeletal muscle movement
Answer:
<u><em>What Is the Difference Between an Optometrist and an Ophthalmologist?</em></u>
1. Optometrists- Optometrists examine, diagnose, treat, and manage diseases and disorders of the eye. ...
2. Ophthalmologists- Ophthalmologists are medical doctors (M.D) who diagnose and treat all eye diseases, perform eye surgery, and prescribe eyeglasses and contact lenses.
