Ptyalin
(Science: physiology) An unorganised amylolytic ferment, on enzyme, present in human mixed saliva and in the saliva of some animals.
Origin: gr. Spittle.
See: ptyalism.
Smell me on tuesday
Dictionary > Ptyalin
You will also like...

Plant Meristems and Growth
In plants, growth occurs in meristems, which are the site of repeated cell division of unspecialized cells. These cells ..

Plant Cell Defense
Plants protect themselves by releasing hydrogen peroxide to fight against fungal invasion. Another way is by secreting c..

Bryophytes
Bryophytes (nonvascular plants) are a plant group characterized by lacking vascular tissues. They include the mosses, th..

Dominance
This tutorial presents Gregor Mendel's law of dominance. Learn more about this form of inheritance and how it can be pre..

Plant Water Regulation
Plants need to regulate water in order to stay upright and structurally stable. Find out the different evolutionary adap..

Ecosystem Succession
If the balance of nature is left untouched, landscapes can change dramatically over time. A previous ecosystem is supers..