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olga nikolaevna [1]
3 years ago
15

What layer of the alimentary canal wall is responsible for absorption and secretion?

Medicine
2 answers:
WITCHER [35]3 years ago
7 0

Answer: b. Mucosa

Explanation:

The mucosa is also called as the mucous membrane. It is a moist later of the epithelial membrane. It lines up the alimentary canal from the mouth to the anus.  

It has three major functions in the digestive system of the body.

1. It secrete mucus, enzymes, and hormones that aid in digestion.  

2. It absorbs the end products of the digestion directly into the blood stream.

3. It protects against infectious disease.

Annette [7]3 years ago
6 0

Answer:

The correct answer is B. The mucosa is responsible for absorption and secretion.

Explanation:

The mucosa is the deepest layer of the intestinal tract, surrounding the lumen, or space inside the tube. This layer comes into direct contact with food (or bolus) and is responsible for absorption and secretion, which are important processes in digestion.

The mucosa is highly specialized in each organ of the intestinal tract, facing a low pH in the stomach, absorbing a multitude of different substances in the small intestine and also absorbing specific amounts of water in the large intestine.

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A 5.0 mL sample of agua oxinada was diluted in 30 mL distilled water and 30 mL diluted sulfuric acid. The resulting solution was
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Answer:

14.8% of H2O2

Explanation:

Based on the redox reaction of H2O2/MnO4- is:

2MnO4- + 5H2O2 + 6H+ ⇄ 2Mn2+ + 5O2 + 8H2O

<em>2 moles of KMnO4 react with 5 moles of H2O2</em>

<em />

To solve this question we need to find the moles of KMnO4 until reach the endpoint. Using the balanced reaction, we can find the moles of H2O2 that must be converted to grams using its molar mass -Molar mass H2O2: 34.015g/mol-:

<em>Moles KMnO4:</em>

0.0297L * (1.4686eq/L) = 0.04362eq MnO4- * (1mol / 5eq) = 0.008723 moles MnO4-

<em>Moles H2O2:</em>

0.008723 moles MnO4- * (5mol H2O2 / 2mol MnO4-) = 0.02181 moles H2O2

<em>Mass H2O2:</em>

0.02181 moles H2O2 * (34.015g/mol) = 0.7418g H2O2

<em>%:</em>

0.7418g H2O2 / 5.0mL * 100

<h3>14.8% of H2O2</h3>
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