11th Class Biology Digestion and Absorption

  • question_answer 49)
    Explain the process of digestion in the buckle cavity with a note on the arrangement of teeth.

    Answer:

                    The buckle cavity performs two major functions i.e., mastication of food and facilitation of swallowing Firstly, food gets mixed with saliva which softens and lubricates the food and cheering process breaks the food into smaller pieces, Buckle cavity is also involved in the digestion of same food components. Digestion of carbohydrates starts in the buckle cavity. The food is mixed with saliva which contains salivary anylase. This enzyme converts starch into maltose, isomaltose and a -dextrins. 30% of the starch in food is hydorlysed in the buckle cavity. Starch Maltose + Isomaltose + dextrins Saliva do not any protein or fat digesting anzyme. Therefore, their digestion do not occur in the oral cavity. The oral cavity has a number of teeth and a muscular tongue. Each tooth is embedded in a socket of jaw bone. This type of attachement is called the codont. The human have two sets of teeth a temporary and a permanent. This type of denotation is called diphyodont. The arrangement of teeth is illustrated below.  


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