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Digestion and Absorption

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CBSE Gujarat Board Haryana Board

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Class 10 Class 12
State the role of pancreatic juice in digestion of proteins.

Role of pancreatic juice in digestion of proteins.

The pancreatic juice contains inactive enzymes – trypsinogen, chymotrypsinogen, procarboxypeptidases, amylases, lipases and nucleases. 

i. Proteins, proteoses and peptones in the chyme reaching the intestine are acted upon by the proteolytic enzymes of pancreatic juice.

begin mathsize 16px style open table attributes columnalign right end attributes row cell bold P bold r bold o bold t bold e bold i bold n bold s end cell row cell bold P bold e bold p bold t bold o bold n bold e bold s bold space bold a bold n bold d bold space bold p bold r bold o bold t bold e bold o bold s bold e bold s end cell end table close curly brackets bold space bold rightwards arrow from bold C bold a bold r bold boxypeptidase to bold T bold r bold y bold p bold s bold i bold n bold divided by bold space bold C bold h bold y bold m bold o bold t bold r bold y bold p bold s bold i bold n of bold space bold space bold italic D bold italic i bold italic p bold italic e bold italic p bold italic t bold italic i bold italic d bold italic e bold italic s bold space


end style

ii. Carbohydrates in the chyme are hydrolysed by pancreatic amylase into disaccharides.

begin mathsize 16px style bold Polysaccharide bold space bold rightwards arrow with bold Amylase bold space on top bold space bold Disaccharides end style

iii. Fats are broken down by lipases

begin mathsize 16px style bold Fats bold space bold rightwards arrow with bold Lipases on top bold space bold Diglycerides bold space bold rightwards arrow bold space bold Monoglycerides end style

iv. Nucleases in the pancreatic juice acts on nucleic acids to form nucleotides and nucleosides.

begin mathsize 16px style bold Nucleic bold space bold acids bold space bold rightwards arrow with bold Nucleases bold space on top bold Nucleotides bold space bold space bold rightwards arrow bold Nucleosides end style

 

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What is the function of enamel in digestion?

The enamel helps in the mastication of food.
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What is the order of arrangement of teeth in each half of the upper and lower jaw ?

The order of arrangement of teeth in each half of the upper and lower jaw is I,C,PM,M.  I (incisors), C (cannine), PM (premolars), M (molars).
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What is Diphyodont ?

Diphyodont is the condition of having two set of teeth during the life of an organism. For example : humans are diphyodont as they have two set of teeth namely temporary milk or deciduous teeth which are replaced by permanent or adult teeth. 

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Name the fat soluble vitamins.

Vit A, D, E and  are fat soluble vitamins.
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What are Sanguivorous animals ?

The animals which suck blood e.g. leech, vampire bat, female mosquito etc.
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