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Bile Juice Contains No Digestive Enzymes, Yet It is Important for Digestion - Biology

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प्रश्न

Bile juice contains no digestive enzymes, yet it is important for digestion. Why?

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उत्तर

Bile is a digestive juice secreted by the liver. Although it does not contain any digestive enzymes, it plays an important role in the digestion of fats. Bile juice contains bile salts, bile pigments like bilirubin, biliverdin and phospholipids. Bile salts break down large fat globules into smaller globules so that the pancreatic enzymes can easily act on them. This process is known as emulsification of fats. Bile juice also makes the medium alkaline and activates lipase.

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पाठ 16: Digestion and Absorption - Exercises [पृष्ठ २६७]

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एनसीईआरटी Biology [English] Class 11
पाठ 16 Digestion and Absorption
Exercises | Q 7 | पृष्ठ २६७

संबंधित प्रश्‍न

How does pepsinogen change into its active form?


Answer briefly:

How does bile help in the digestion of fats?


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How does butter in your food gets digested and absorbed in the body?


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Emulsification of fats is brought about by ______.


The food mixes thoroughly with the acidic gastric juice of the stomach by the churning movements of its muscular wall. What do we call the food then?


Define digestion in one sentence.


Correct the following statement by deleting one of entries (given in bold).

Fats are broken down into di- and monoglycerides with the help of amylase/ lipases.


Name the part of the alimentary canal where major absorption of digested food takes place. What are the absorbed forms of different kinds of food materials?


Correct the statement given below by the right option shown in the bracket against them.

Rennin is a proteolytic enzyme found in gastric juice in (infants/adults).


Correct the statement given below by the right option shown in the bracket against them.

Dipeptides, disaccharides and glycerides are broken down into simple substances in region of small intestine. (jejunum/duodenum)


How is the intestinal mucosa protected from the acidic food entering from stomach?


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Describe the enzymatic action on fats in the duodenum.


A person had roti and dal for his lunch. Trace the changes in those during its passage through the alimentary canal.


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