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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?

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प्रश्न

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?

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उत्तर

The small intestine is where most digested food is absorbed. This occurs in the jejunum and ileum, two small intestine sections bordered by finger-like villi projections. Glucose is the type of carbohydrate that is absorbed. Protein absorption takes place in the form of Amino acids. Fatty acids and glycerol are the two forms of fat that are absorbed.

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अध्याय 16: Digestion and Absorption - Exercises [पृष्ठ ९४]

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एनसीईआरटी एक्झांप्लर Biology Exemplar [English] Class 11
अध्याय 16 Digestion and Absorption
Exercises | Q 2. | पृष्ठ ९४

संबंधित प्रश्न

Match column I with column II

  Column I   Column II
a Bilirubin and biliverdin 1 Parotid
b Hydrolysis of starch 2 Bile
c Digestion of fat 3 Lipases
d Salivary gland 4 Amylases

How does pepsinogen change into its active form?


Answer briefly:

How does bile help in the digestion of fats?


Describe the process of digestion of protein in stomach.


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


Describe the digestive role of chymotrypsin. What two other digestive enzymes of the same category are secreted by its source gland?


How are polysaccharides and disaccharides digested?


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


Name different types of teeth and their number in an adult human.


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?


Trypsinogen is an inactive enzyme of pancreatic juice. An enzyme, enterokinase, activates it. Which tissue/ cells secrete this enzyme?/ How is it activated?


Name the enzymes involved in the breakdown of nucleotides into sugars and bases?


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.


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

Saliva contains enzymes that digest starch/protein.


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

Pancreatic juice and bile are released through. (intestine- pancreatic/hepato-pancreatic duct)


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


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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