1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Vedmedyk [2.9K]
4 years ago
13

Which of the following is an example of positive feedback in the lumen of the stomach? Which of the following is an example of p

ositive feedback in the lumen of the stomach? Hydrochloric acid converts pepsinogen to pepsin. Pepsin works best in the acidic environment produced by hydrochloric acid. Pepsin digests molecules of pepsinogen, producing more pepsin. Chief cells secrete pepsinogen, which is a precursor to pepsin.
Biology
1 answer:
Vladimir79 [104]4 years ago
7 0

Answer:

Option (3).

Explanation:

The homeostasis of the body is maintained by the feed back loop system. Two main types of the feedback loop system of the body are positive feedback system and negative feedback system.

Positive feedback system may be defined as the feedback in which the final product increases the output of that product. Pepsinogen is an zymogen that helps in the activation of pepsin enzyme. This enzyme helps in the digestion of protein. The digestion of pepsinogen by pepsin result in the more production of pepsin.

Thus, the correct answer is option (3).

You might be interested in
Plz answer this question: Read the passage and examine the photos. Then, suggest two reasons that scientists think developing po
ohaa [14]

Answer:

Vascular plants are successful due to better transportation for water, nutrients and reproduction.

The xylem and phloem of the vascular bundles allow for distribution of water and food to all parts of the body.

4 0
3 years ago
how can get over a guy that really hurt your feelings?? this is a question for the people with experience
disa [49]
Ignore him. Try to move on and show him that you can have a better life without him. It'll be tough
5 0
3 years ago
How do the functions of the skeletal and muscular system differ? A. Bones provide structure and support to the body, while muscl
jeka94

Answer:

A. Bones provide structure and support to the body, while muscles move the bones.

Explanation:

4 0
3 years ago
Myosin is plentiful in muscle cells, but is not found at all in lens cells. Lens cells contain large amounts of crystallins, whi
Rama09 [41]

Answer:

B

Explanation:

All cells from the body came from a single cell ( fertilization of egg and sperm). All the cell have the same instruction in them. They however undergo certain changes base on the site of their function in process described as cell specialization. During this differentiating process, certain genes are activated to produce proteins that enables specific functions. Example include the myosin present in  abundance in muscle cells but not in lens cell while the lens cell have crystallins in abundance for it adapted activities which the muscles cells lack. others include the root hair cell specially adapted for absorption, the nerve cells for transmission of electrical impulses. This cells generally have certain character controlled by the activated genes which are repressed in others.

6 0
3 years ago
Which type of fault creates oceanic rifts and rift valleys?
ra1l [238]

Answer:

divergent plate boundary

A rift valley is formed on a divergent plate boundary, a crustal extension or spreading apart of the surface, which is subsequently further deepened by the forces of erosion.

Explanation:

7 0
3 years ago
Other questions:
  • Ecosystem diversity is: A. variety of interactions among organisms in natural communities. B. the number of different species in
    15·1 answer
  • What instrument was necessary before the cell theory could be developed?
    11·1 answer
  • A Kelvin (K) is a unit of measurement in the International System of Units. Which quantity is measured in Kelvin? temperature ma
    7·1 answer
  • The site of protein synthesis in an animal cell is a. smooth ER. b. Golgi apparatus. c. rough ER. d. nucleoli. C?
    7·1 answer
  • Which is not a difference between a population showing exponential growth and a population showing logistic growth?
    5·1 answer
  • What is nutrient pollution, and how does it get into the ocean? Where does it come from?
    8·1 answer
  • What is delta and how is it used
    9·2 answers
  • Based on the diagram above, which layer of the intestine contains the plicae circulares?
    7·1 answer
  • define kinetic energy and thermal energy. Describe what happens to each as the temperature of a substances increases.
    13·2 answers
  • Which information make the article realiable
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!