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Digestion and Absorption

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CBSE Gujarat Board Haryana Board

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Class 10 Class 12
Give the summary of absorption in different parts of the Digestive System.

The absorption takes place in the following way in different parts of the digestive system -

i. In mouth : Certain drugs are absorbed into the blood capillaries lining the mucosa of the mouth and the lower side of the tongue.

ii. In stomach : Absorption of water, simple sugars and alcohol takes place in the stomach.

iii. In Small Intestine : It is the principal organ for the absorption of pnutrients. The digestion is completed here and the final products of digestion such as glucose, fructose, fatty acids, glycerol and amino acids are absorbed through the mucosa into the blood stream and lymph.

iv. In Large intestine : Absorption of water, some minerals and drugs takes place in the large intestine. .

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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 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 the function of enamel in digestion?

The enamel helps in the mastication of food.
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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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