Bile juice helps in the digestion of fat because it contains
  • enzymes
  • vitamins
  • bile salts
  • bile pigments
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) only
  • (3) only
  • (1) and (2) only
  • (2) and (3) only
In the alimentary canal, most water is absorbed in the
  • oesophagus
  • stomach
  • small intestine
  • colon
In the alimentary canal, bacteria in food are mainly killed by
  • saliva
  • mucus
  • gastric juice
  • pancreatic juice
The liver is said to be a digestive gland because it
  • converts stored glycogen into glucose
  • breaks down excess amino acids
  • produces bile
  • stores iron
Protein digestion occurs mainly in
sc-1 sb-1-Digestion and Absorptionimg_no 125.jpg
  • 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
sc-1 sb-1-Digestion and Absorptionimg_no 126.jpg
  • 1 and 2 only
  • 1 and 4 only
  • 2 and 3 only
  • 3 and 4 only
Peristalsis occurs in
sc-1 sb-1-Digestion and Absorptionimg_no 127.jpg
  • 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?
sc-1 sb-1-Digestion and Absorptionimg_no 128.jpg
  • X only
  • X and Y only
  • Y and Z only
  • X, Y and Z
Physical digestion takes place at
sc-1 sb-1-Digestion and Absorptionimg_no 129.jpg
  • 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?
  • liver
  • mouth
  • stomach
  • pancreas
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
  • Impulse
  • Peristalsis
  • Action Potential
  • Metabolism
This is the enzyme that works on protein.
  • pepsin
  • HCl
  • Bicarbonate
  • Lactase
In which order do these events occur in human nutrition? *2014 Q25
sc-1 sb-1-Digestion and Absorptionimg_no 130.jpg
  • digestion-ingestion-absorption-assimilation
  • digestion-ingestion-assimilation-absorption
  • ingestion-digestion-absorption-assimilation
  • ingestion-digestion-assimilation-absorption
What is the function of the gall bladder? *2015 Q26
sc-1 sb-1-Digestion and Absorptionimg_no 131.jpg
  • absorption of fat
  • digestion of fat
  • production of bile
  • storage of bile
Hydrochloric acid is secreted in the _______________ .
  • oesophagus
  • stomach
  • large intestine
  • small intestine
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
Bile is produced by the
  • Liver
  • Pancreas
  • Small Intestine
  • Large Intestine
The protective substance that lines the stomach is called
  • Mucus
  • Saliva
  • Pepsin
  • Trypsin
Most nutrient absorption occurs in the ________________ .
  • mouth
  • stomach
  • large intestines
  • small intestines
This is the enzyme that breaks down the sugar lactose in your small intestine.
  • pepsin
  • HCl
  • Bicarbonate
  • Lactase
Which of these increase does not allow the ileum to be adapted for absorption
  • large surface area
  • richly supplied with blood capillaries and lymphatic capillaries
  • ileum is one cell thick
  • long
In which order do these events occur in human nutrition? *2014 Q25
sc-6 sb-1-Digestion and Absorptionimg_no 42.jpg
  • digestion-ingestion-absorption-assimilation
  • digestion-ingestion-assimilation-absorption
  • ingestion-digestion-absorption-assimilation
  • ingestion-digestion-assimilation-absorption
What is the function of the gall bladder? *2015 Q26
sc-6 sb-1-Digestion and Absorptionimg_no 43.jpg
  • absorption of fat
  • digestion of fat
  • production of bile
  • storage of bile
The diagram shows the structure of a villus in the small intestine. The arrows show the direction of the flow of fluids. Where will fatty acids and glycerol be present in the largest amount?
sc-6 sb-1-Digestion and Absorptionimg_no 49.jpg
  • A
  • B
  • C
  • D
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