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movement helps the food to move through the gastrointestinal tract.

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Important Questions on Digestion and Absorption

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Biology>Human Physiology>Digestion and Absorption>Digestion of Food in Humans
Gastric juice of infants contains:
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Biology>Human Physiology>Digestion and Absorption>Digestion of Food in Humans
Which ONE of the following is NOT a function of the small intestine?
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Biology>Human Physiology>Digestion and Absorption>Digestion of Food in Humans
The enzyme that is not present in succus entericus is:
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Biology>Human Physiology>Digestion and Absorption>Digestion of Food in Humans
The initial step in the digestion of milk in human is carried out by?
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Biology>Human Physiology>Digestion and Absorption>Digestion of Food in Humans
The primary dentition in human differs from permanent dentition in not having one of the following types of teeth:
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Biology>Human Physiology>Digestion and Absorption>Digestion of Food in Humans
Which of the following options best represents the enzyme composition of pancreatic juice?
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Biology>Human Physiology>Digestion and Absorption>Digestion of Food in Humans

Study the following diagram of human tongue and identify the part I, II, and III

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Biology>Human Physiology>Digestion and Absorption>Digestion of Food in Humans
An enzyme with optimal activity at pH 2.0 and 37°C is most likely to be:
EASY
Biology>Human Physiology>Digestion and Absorption>Digestion of Food in Humans
Identify the correct statement with reference to human digestive system.
MEDIUM
Biology>Human Physiology>Digestion and Absorption>Digestion of Food in Humans
In a T. S. of the human small intestine, serosa is the outermost layer and is made up of a thin __A__. Muscularis is formed by the smooth muscles arranged outer __B__ and inner __C__. Sub-mucosa is formed by the __D__. Mucosa is the innermost layer made of __E__.
MEDIUM
Biology>Human Physiology>Digestion and Absorption>Digestion of Food in Humans

Match the following 

   List - I     List - II
(a) Villikinin (i) Stimulates the secretion of HCl and pepsinogen
(b) Secretin (ii) Stimulates the secretions of H2O and HCO3-
(c) Gastrin (iii) Stimulates intestinal epithelial movement to increase nutrient absorption
(d) Cholecystokinin (iv) Stimulates the secretion of pancreatic enzymes and bile juice

The correct answer is

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Biology>Human Physiology>Digestion and Absorption>Digestion of Food in Humans
Which cells of 'Crypts of Lieberkuhn' secrete antibacterial lysozyme?
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Biology>Human Physiology>Digestion and Absorption>Digestion of Food in Humans
Removal of the pancreas impairs the breakdown of
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Biology>Human Physiology>Digestion and Absorption>Digestion of Food in Humans
Which hormones do stimulate the production of pancreatic juice and bicarbonate?
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Biology>Human Physiology>Digestion and Absorption>Digestion of Food in Humans
Which one of the following statements is true about trypsinogen?
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Biology>Human Physiology>Digestion and Absorption>Digestion of Food in Humans

Match the digestive glands given in Column - I with their respective enzymes given in Column — II and choose the correct combination from the given options,

  Column I   Column II
(1) Pancreas (p) Pepsin
(2) Gastric glands (q) Enterokinase
(3) Small intestine (r) Ptyalin
(4) Salivary glands (s) Trypsin

Choose the correct option:- 

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Biology>Human Physiology>Digestion and Absorption>Digestion of Food in Humans
Which ONE of the following statements about rennin is CORRECT?
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Biology>Human Physiology>Digestion and Absorption>Digestion of Food in Humans
The crypts of Lieberkuhn are found in which one of the following parts of the human digestive tract?
EASY
Biology>Human Physiology>Digestion and Absorption>Digestion of Food in Humans
Match the following structures with their respective location in organs:
  Column – I   Column – II
(a) Crypts of Lieberkuhn (i) Pancreas
(b) Glisson’s capsule (ii) Duodenum
(c) Islets of Langerhans (iii) Small intestine
(d) Brunner’s Glands (iv) Liver

Select the correct option.
MEDIUM
Biology>Human Physiology>Digestion and Absorption>Digestion of Food in Humans
A baby boy aged two years is admitted to playing school and passes through a dental check-up. The dentist observed that the boy had twenty teeth. Which teeth were absent?