Question

Write the function of the following in the human alimentary canal. 1 saliva
2 HCL in stomach
3 bile juice
4 viili

Answer 1

Answer:

passage of food which process through the bodyfrom mouth to Anus during digestion is called as alimentary canal.

Explanation:

1. 1)saliva:-watery substance produced in the mouth.it contains many important substances, including electrolytes,mucus,anti bacterial compounds &enzymes.
2. HCL in stomach:-it breakdown digest & absorb nutrients such as protein.it also eliminates virus& bacteria in the stomach, protects body from infection.
3. bile juice:-is a dark green to yellowish brown fluid produced by the liver.
4. villi:-small finger like structures in the small intestine,they help to absorb digested food.

Answer 2

Every structure in the human alimentary canal performs various functions.

Explanation:

• Saliva: During the process of chewing the food, the salivary glands present in the mouth adds saliva to the food.
• First, it makes the chewed food soft which can easily pass from the food pipe.
• Second the enzyme salivary amylase helps in the breakdown of starch in the mouth.

• HCl in the Stomach : The hydrochloric acid is secreted from the cells located on the walls of the stomach.
• First it converts the bolus ( chewed food) in acidic form called as chyme, so that other enzymes of stomach can act on it and can help in the breakdown.
• The acid kills the bacteria or any other microorganisms present in the food.

• Bile Juice : It is released from the liver, and it is temporarily stored in the gall bladder.
• From gall bladder it is poured on the duodenum of the small intestine.
• The bile juice helps in the breaking of the fat molecules, which is called as emulsification of fats.

• Villi : Villi are the tiny finger like projections present on the walls of the small intestine.
• These helps in the absorption of the digested food.
• These villi are further covered with microvilli which increases the surface area of the cells and helps in more efficient absorption of the food.