Which substance is used by plants to make proteins?
a) Carbon dioxide
b) Oxygen
c) Nitrates
d) vitamins
What happens when the food reaches the stomach?
a) no digestion occurs in the stomach
b) the food moves quickly into the small intestine
c) juices mix with the food and stomach muscles squeeze it
d) the food is completely digested and absorbed into the circulatory system
Which of the following does NOT manufacture digestive juice?
a) oesophagus
b) stomach
c) pancreas
d) intestine
What is absorbed from the material when is in large intestine?
a) salts
b) water
c) vitamins
d) all of these
Which of the following is NOT a function of salivary glands?
a) start digestion of proteins
b) helps in the lubrication
c) secrete saliva
d) makes taste possible
The cardiac sphincter serves as a valve between
a) stomach and duodenum
b) oesophagus and stomach
c) duodenum and ileum
d) jejunum and caecum
