contestada

Pepsin is a digestive enzyme. It is made in an inactive form, pepsinogen, which is activated by the acidity of the stomach to self-cleave. The cleaved molecule is active pepsin, which goes on to cleave more pepsinogen molecules, leading to a cascade of rapid pepsin activation. This pathway is an example of________.

A. a positive feedback loop.
B. conditioning.
C. a negative feedback loop.
D. feedforward regulation.
E. homeostasis

Respuesta :

Answer:

A

Explanation:

Pepsinogen is an inactive enzyme which is activated into active digestive enzyme known as pepsin. It is a digestive enzyme which causes breakdown of proteins. Active pepsin causes cleavage of more pepsinogen molecule by a positive feedback loop and leads to increase in the concentration of active pepsin molecule.

Its concentration increases according the requirement in the body which is controlled by feedback system.

Option (A) is Right Answer

Explanation:

  (A) positive feedback loop

  • Pepsin is a digestive enzyme. It is made in a inactive structure, pepsinogen, which is enacted by the sharpness of the stomach to self-separate
  • The severed particle is dynamic pepsin, which proceeds to separate more pepsinogen atoms, prompting a course of fast pepsin enactment
  • Animals and population can keep up homeostasis in a domain when they have a consistent degree of births and passings. It is like the possibility of harmony

Otras preguntas