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Digestion and Absorption

Short Answer Type

71. What are crypts of Leiberkuhn ?

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72. What is diabetes ?

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One Word Answers

73. Name the vestigeal organ that arise from the caecum.

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Short Answer Type

74. How diarrhoea affects digestion.

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75. What is the role of E-coli bacteria in digestion ?

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76. Draw a well labelled diagram of the section of the gut.

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77. Define nutrients and nutrition.

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78. Write a note on saliva.

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79. Name the cell that secretes mucus. What are the functions of mucus ?

Goblet cells secrete mucus, but in gastric glands mucus neck cells secrete mucus.

Functions of mucus :

1. Mucus lubricates the food

2. Mucus dilutes the action of enzymes so that they may not affect wall of alimentary canal. In case of duodenum mucoid fluid also protects wall of duodenum form acidic chyme.

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Long Answer Type

80. Describe liver

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