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3 years ago

Chief cells secrete inactive pepsinogen in order to prevent acid erosion inside of the chief cells. True or False

Biology

2 answers:

4vir4ik [10]3 years ago

5 0

Answer:

False

Explanation:

Chief cells usually secrete pepsinogen, but the product does not related is to acidity.therefore, Whenever

HCl secreted by the parietal cells activate pepsinogen, the pepsinogen is converted into pepsin, and pepsin is an enzyme that acts on proteins.

NOTE:

The gastric chief cell is one of the cells in our stomach that brings about the release of pepsinogen and chymosin. Pepsinogen is activated into the body's digestive enzyme pepsin and the pepsin will have contact with acid that is produced by gastric parietal cells.

Pepsinogen is substance that is secreted into gastric juice from both mucous cells and chief cells. After secretion pepsinogen is activated into the active protease pepsin by the stomach acid.the protease pepsin helps the stomach's ability to initiate digestion of proteins.

Irina18 [472]3 years ago

4 0

Answer:

False.

Explanation:

Pepsinogen is secreted by chief cells in gastric and mucous cells which has no digestive activit, but the result is unrelated to acidity.

However, once pepsinogen is secreted and comes in contact with previously formed pepsin in the presence of HCl, it is immediately activated to form active pepsin. Pepsin is an active proteolytic enzyme (for digesting protiens) in a highly acidic medium (optimum pH 2) and above a pH of about 5, it has a little proteolytic activity and soon becomes incompletely inactivated. Hence, HCl secretion is just as necessary as pepsin secretion for protien digestion in the stomach.

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3 years ago

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Answer:

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1. When humans are unable to increase food production which is expected to sustain a larger population.

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Explanation:

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1. When humans are unable to increase food production which is expected to sustain a larger population.

2. When humans' use of resources, in general, is greater than resource availability.

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3 years ago

How do I Construct a table to compare the products and reactants in photosynthesis and cellular respiration

katen-ka-za [31]

Explanation:

Create the column headings "Reactants" and "Products". The two row headings should be "Photosynthesis" and "Cellular respiration".

Before filling in the table, make sure you know what the products and reactants from photosynthesis and cellular respiration are.

Remember reactants are the 'before' on the left, and products are the 'after' on the right.

<u>Photosynthesis</u>:

$CO_{2} + H_{2}O+light =>O_{2}+C_{6}H_{12}O_{6}$

<u>Cellular Respiration</u>:

$O_{2}+C_{6}H_{12}O_{6}=>CO_{2} + H_{2}O+ATP$

See attachment for how the table could look.

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Answer:

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