Digestion and Absorption

Differentiate between proximate and protective principles of food.

Proximate principles of food :

1. These provide energy.

2. These are organic macromolecules e.g. Carbohydrates, fats and proteins.

Protective principles of food :

1. These do not provide energy.

2. These are micromolecules both organic and inorganic molecules just as vitamins, minerals and water.

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What is peristalsis ? How does it help in digestion.

Distinguish between holozoic and saprozoic nutrition ?

Describe the coagulation of milk in the alimentary canal.

What are gall stones?

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