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Andreyy89
3 years ago
5

An organ that helps break down food but is not part of the tube through which the foodstuffs pass is referred to as a(n) _______

__.
a. alimentary canal organ.
b. accessory digestive organ.
c. organ of mastication.
d. chemically digesting organ.
e. diffuse ingestive structure.
Biology
1 answer:
defon3 years ago
3 0

Answer:

The correct answer is b. accessory digestive organ.

Explanation:

Accessory digestive organs are the organs that help in food digestion but are not part of the digestive tract. The digestive tract includes mouth, esophagus, stomach, small intestine, large intestine, and anus.  

These accessory organs in our body are tongue, pancreas, gall bladder, salivary glands, and liver. They play an important role in food ingestion and digestion. For example pancreas and liver release hydrolytic enzymes that help in digestion of complex biomolecules into simpler form. Therefore the correct answer is b.

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Answer:

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Explanation:

n 1928, Sir Alexander Fleming was studying Staphylococcus bacteria growing in culture dishes. He noticed that a mold called Penicillium was also growing in some of the dishes. A clear area existed around the mold because all the bacteria that had grown in this area had died. In the culture dishes without the mold, no clear areas were present.

Fleming thought that the mold must be producing a chemical that killed the bacteria. He decided to isolate this substance and test it to see if it would kill bacteria. Fleming transferred the mold to a nutrient broth solution. This solution contained all the materials the mold needed to grow. After the mold grew, he removed it from the nutrient broth. Fleming then added the nutrient broth in which the mold had grown to a culture of bacteria. He observed that the bacteria died. He also added the same type of broth that had not been exposed to the mold, to a culture of the same type of bacteria. Nothing happened to the bacteria.

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