1. The saliva secreted by three pairs of salivary glands contains an enzyme _______.

Question

Fill in the blanks:

1. The saliva secreted by three pairs of salivary glands contains an enzyme ______.
2. It helps in the breakdown of complex ______into simple ones.
3. The _______is a long tube extending from the mouth to the anus.
4. The parts of the _______ system are the mouth, buccal cavity, pharynx, oesophagus, stomach, small intestine, large intestine, rectum and anus.
5. The food from the mouth to the stomach passes through the ________by wave-like movements called peristaltic movements.
6. Food gets churned with gastric juice and _____in the stomach.
7. ______is the partially broken food in the stomach which is in the form of a soft slimy substance.

Answer 1

1. The saliva secreted by three pairs of salivary glands contains an enzyme amylase (ptyalin).
2. It helps in the breakdown of complex carbohydrates into simple ones.
3. The alimentary canal is a long tube extending from the mouth to the anus.
4. The parts of the human digestive system are the mouth, buccal cavity, pharynx, oesophagus, stomach, small intestine, large intestine, rectum and anus.
5. The food from the mouth to the stomach passes through the oesophagus by wave-like movements called peristaltic movements.
6.  Food gets churned with gastric juice and HCl in the stomach.
7. Chyme is the partially broken food in the stomach which is in the form of a soft slimy substance.