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Bile juice helps in the digestion of fat because it contains
The stomach wall produces mucus to cover its surface. Which of the following statements correctly describe(s) the function of the mucus?
(1) It kills the bacteria in the ingested food.
(2) It prevents the rubbing of food against the stomach wall.
(3) It protects the stomach wall from the action of the digestive enzymes.
(1) and (2) only
(2) and (3) only
In the alimentary canal, most water is absorbed in the
In the alimentary canal, bacteria in food are mainly killed by
The liver is said to be a digestive gland because it
converts stored glycogen into glucose
breaks down excess amino acids
Protein digestion occurs mainly in
1 and 3
2 and 3
2 and 5
3 and 5
Bile is a digestive juice in our body. Which of the following statements about bile is correct?
It is produced by the gall bladder.
It contains an enzyme that digests fat.
It helps break down fat into droplets.
It stimulates peristaltic movement of the small intestine.
Chemical digestion of carbohydrate occurs in
1 and 2 only
1 and 4 only
2 and 3 only
3 and 4 only
Peristalsis occurs in
1, 2 and 3 only
1, 2 and 4 only
1, 3 and 4 only
2, 3 and 4 only
Which structure(s) will produce the enzyme(s) needed for the digestion of egg white?
X and Y only
Y and Z only
X, Y and Z
Physical digestion takes place at
1 and 3
1 and 4
3 and 4
1, 3 and 4
Which of the following organs produces digestive juice that does not contain enzymes?
Amylase is secreted by
salivary glands only
pancreatic glands only
Salivary and pancreatic glands
liver and small intestine
Protein digestion takes place
in the mouth
in the stomach
in the stomach and duodenum
all of the above
Waves of contractions that move food one way through the digestive system are called
In which order do these events occur in human nutrition? *2014 Q25
What is the function of the gall bladder? *2015 Q26
absorption of fat
digestion of fat
production of bile
storage of bile
Hydrochloric acid is secreted in the _______________ .
Which of the following is the correct order for the major parts of the gastrointestinal tract?
oesophagus, stomach, large intestine, small intestine, mouth
mouth, stomach, oesophagus, large intestine, small intestine
mouth, small intestine, stomach, oesophagus, large intestine
mouth, oesophagus, stomach, small intestine, large intestine