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
frez [133]
3 years ago
8

Pepsinogen is produced by __________ and is activated by __________

Biology
2 answers:
sweet [91]3 years ago
8 0

Answer:

The correct answer is "Chief cells; hydrochloric acid secreted by parietal cells".

Explanation:

Pepsinogen is produced by chief cells in the gastric system. Pepsinogen is a precursor of pepsin, a powerful digestive enzyme that is activated when pepsinogen is exposed to gastric acid in the gastric lumen. This gastric acid is actually hydrochloric acid that is secreted by parietal cells, which are epithelial cells located in the gastric glands.

Ket [755]3 years ago
7 0

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.

You might be interested in
What are two organelles you would expectto find highly in a cell that produces a lot of proteins
Vanyuwa [196]
Small, highly concentrated cell organelles that produce proteins are called <span>ribosomes. Ribosomes can be free-floating or attached to endoplasmic reticulum.</span>
3 0
3 years ago
Why are chloroplasts absent in epidermal cells ?
const2013 [10]
<em>the function of epidermis is to protect the leaf
make it air tight 
prevent water loss as it is waxy
also it is transparent and allows all light to enter...
   chloroplast is required for carrying out process of photosynthesis...
    as epidermis is not specialized to carry out photosynthesis... so it does not have any chloroplast...</em>
6 0
3 years ago
Read 2 more answers
Which of the following is (are) characteristics of a living organism? Choose all that
dalvyx [7]
Reproduction , metabolism ,sweating
4 0
2 years ago
Under a microscope, a student observes a specimen containing a cell wall, nucleus, and chloroplasts.
mart [117]

Answer:

A plant cell b/c it has chloroplast

Explanation:

Chloroplast absorbs sunlight also known as light energy used for the process of photosynthesis.

5 0
3 years ago
Read 2 more answers
What do you think makes an argument stronger? Explain 1- 2 things that would make an argument stronger and more believable?
OLEGan [10]

Answer:

a diagram, speech photos and classifications

Explan

3 0
2 years ago
Read 2 more answers
Other questions:
  • Plants are ?
    12·2 answers
  • Which of these outcomes is the main goal of maximum sustainable yield (MSY) management?
    7·2 answers
  • What forms when ATP releases energy? 1. AVP 2. AMP 3. ADP 4. ACP
    8·1 answer
  • What organelle is the powerhouse of the cell?
    9·2 answers
  • How many molecules of carbon dioxide result from the breakdown of one molecule of glucose in aerobic respiration?
    7·1 answer
  • Autotrophs are found at the _____ of a food pyramid.
    11·2 answers
  • The plasma membrane represents an energetic barrier to the free diffusion of ions from the extracellular space into the cytoplas
    7·1 answer
  • 1. The nucleus is the site of<br> in protein synthesis<br> A. transcription<br> B. translation
    13·2 answers
  • Explain the mechanism of biological nitrogen fixation in detail​
    11·1 answer
  • Which of the following is NOT a part of a DNA molecule?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!