<span>Ptyalin hydrolysis does not continue in the stomach because it is destroyed by the stomach once it enter the stomach. </span>
Ptyalin is an amylase enzyme commonly found in the saliva of
humans and animals. This enzyme is secreted in the mouth ( buccal cavity) and catalyze
the hydrolysis of starch into maltose and dextrin. Immediately the starch
leaves the mouth and enter the stomach, stomach acids destroy the ptyalin.
"they can be harmful or neutral" is the statement among the following statements given in the question that is true with respect to the characteristics of mutations. The correct option among all the options that are given in the question is the second option or option "B". I hope the answer helps you.
Light that appears white or nearly white to humans is made up of spectrum of visible light i.e. combination of violet, indigo, blue, green, yellow, orange and red.
<span>Answer: continually increasing pressure on the unaffected lung.
In tension pneumothorax, the pressure is so high that it will push surrounding organ like another lung, heart, or blood vessels. Pushing another lung can make it less expandable, so less air can come inside and less oxygen can be gained.
Pushing heart and blood vessels can also disturb blood circulation.</span>