Biology
In which of the following parts of the alimentary canal, does digestion not take place ?
- Stomach
- Duodenum
- Jejunum
- Ileum
Digestive System
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Answer
Jejunum
Reason — No digestion takes place in the second part of the small intestine called Jejunum.
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Bile juice is stored in :
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The end product of protein is :
- Fatty acids
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Fill in the blanks:
(i) The teeth called …………… are a total of four in number on the sides of incisors.
(ii) …………… is a common opening of food pipe and wind pipe.
(iii) Molars are meant for …………… the food.
(iv) Incisors are used for …………… and …………… the food.
(v) The …………… are used for tearing the food.
(vi) The …………… and …………… are used for crushing and grinding the food.
(vii) In an adult human, there are a total of …………… teeth.
(viii) The human teeth appears in two sets, the first set is called …………… which consists of only …………… teeth.
Write True or False in the following statements.
- Molars help in cutting and tearing food.
- Carbohydrates are digested into glucose.
- Proteins are digested into fatty acids.
- Wisdom tooth appears at the age of 5-6 years when the child starts going to school.
- The temporary set of teeth includes incisors, canines and premolars only.
- The ducts from the salivary glands open into the duodenum.
- Saliva changes starch into maltose.