Q.1: The upper surface of the tongue has small projections called ___________.
Q.2: The opening of the stomach into the duodenum is guarded by the _____________.
c) pyloric sphincter
Q.3: The innermost layer lining the lumen of the alimentary canal is the _____________.
Q.4: What does the exocrine portion of pancreas secrete ?
c) alkaline pancreatic juice
Q.5: The process of passage of food through oesophagus into stomach is known as _____________.
Q.6: ____________ present in saliva acts as an antibacterial agent that prevents infections.
Q.7: _________________ is a proteolytic enzyme found in gastric juice of infants which helps in the digestion of milk proteins.
Q.8: Carbohydrates in the chyme are hydrolysed by pancreatic amylase into __________________.
Q.9: The principal organ for absorption of nutrients is ________________.
b) large intestine
c) small intestine
Q.10: The breakdown of biomacromolecules occurs in the ____________ region of small intestine.