All categories

3 years ago

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

"after going to a physician complaining of memory loss, jeff is told that while he was under hypnosis, several different persona

LenaWriter [7]

<span>Jeff has Dissociative Identity Disorder also known as Multiple Personality Disorder. Each personality is unique with different personalities, memories, experiences and thoughts, even their language, accent and speech can be different from one another.</span>

3 0

3 years ago

You are viewing an organ of the respiratory system and note the following tissues: folded mucosal layer containing simple cuboid

Ronch [10]

Answer:

Respiratory bronchiole

Explanation:

The respiratory bronchioles represent the narrowest airways within the lung, being continuations of terminal bronchioles that have approx. 0.5 mm in size. The epithelium of the respiratory bronchiole is composed of cuboidal ciliated cells and a small number of non-ciliated (secretory) Clara cells. The respiratory bronchioles lead into alveolar ducts composed of smooth muscle and connective tissue (i.e., elastin and collagen), connecting the respiratory bronchioles to the alveolar sacs.

7 0

3 years ago

When taking a look at this type of pressure map,which represents the sinking air? Rising air?

PSYCHO15rus [73]

L is sinking, H is rising

7 0

3 years ago

True or false species can vary locally

siniylev [52]

Answer:

True

Explanation:

This is true because species can vary locally.

Hope this helps:)

pls mark brainly

7 0

3 years ago

How may daughter cells are formed

hichkok12 [17]

Answer:

2 or 4 depending on the process

Explanation:

3 0

3 years ago

Pepsinogen is produced by __________ and is activated by __________

Pepsinogen is produced by and is activated by