Advertisements
Advertisements
प्रश्न
Answer in detail.
You had eaten bread in the morning. Starting from the mouth, explain how it is digested?
उत्तर
Bread contains starch. The digestion of starch starts in the mouth. When we chew the bread, saliva gets mixed with it. It softens the food. Saliva is secreted by salivary glands. Saliva contains the enzyme salivary amylase (ptyalin) which acts on starch to convert it into maltose
starch \[\ce{->[salivary][amylase]}\] maltose.
After chewing, the food is swallowed into the pharynx. No further digestion takes place in the pharynx. From here the food moves in to the oesophagus, by peristaltic movements it is pushed in to the alimentary canal. In the small intestine (duodenum) rest of the starch is broken down into smaller units by pancreatic amylase. Further Maltose is changed into glucose by maltose in the small intestine (ileum).
APPEARS IN
संबंधित प्रश्न
Which part of the digestive canal is involved in:
Absorption of food ______.
Which part of the digestive canal is involved in:
Killing of bacteria ______.
Which part of the body secretes bile? Where is bile stored? What is the function of bile?
What are the end products of the digestion of: starch, proteins and fats respectively?
Define the following term :
Pylorus
State whether the following statement is True or False.
The ducts from the salivary glands open into the duodenum.
Mark odd one in the series:
Correct the spellings: Bilirubin
The common bile duct and pancreatic form ______.
Why do we eat?
