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.
A metal and non-metal form into a compound. that compound is an ionic compound.
Answer:
By looking at the different possibilities.
Explanation:
By looking at which letters correspond to which, you can tell what the chances are of being what.
Have a nice day! :)
I would say D because mechanical weathering is the breaking up of rocks by physical forces
