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Gastric juice contains

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Important Questions on Human Nutrition

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Biology>Human Physiology>Human Nutrition>Physiology of Digestion
An enzyme with optimal activity at pH 2.0 and 37°C is most likely to be:
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Biology>Human Physiology>Human Nutrition>Physiology of Digestion
Removal of the pancreas impairs the breakdown of
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Biology>Human Physiology>Human Nutrition>Physiology of Digestion
Digestion of both starch and proteins is carried out by enzymes of
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Biology>Human Physiology>Human Nutrition>Physiology of Digestion
Identify the CORRECT match of the site of action on food substrate, enzyme acting on it and its end products in the following reactions.
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Biology>Human Physiology>Human Nutrition>Physiology of Digestion
Which of the following options best represents the enzyme composition of pancreatic juice?
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Biology>Human Physiology>Human Nutrition>Physiology of Digestion
Gross calorific value and physiological value of proteins are _______ and _______ kcal/g respectively.
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Biology>Human Physiology>Human Nutrition>Physiology of Digestion
Which one of the following statements is true about trypsinogen?
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Biology>Human Physiology>Human Nutrition>Physiology of Digestion
Enzyme X extracted from the digestive system, hydrolyses peptide bonds. Which of the following are probable candidate to be enzyme X?
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Biology>Human Physiology>Human Nutrition>Physiology of Digestion
The initial step in the digestion of milk in human is carried out by?
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Biology>Human Physiology>Human Nutrition>Physiology of Digestion

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>Human Nutrition>Physiology of Digestion
In the stomach, gastric acid is secreted by the
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Biology>Human Physiology>Human Nutrition>Physiology of Digestion
Gastric juice of infants contains:
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Biology>Human Physiology>Human Nutrition>Physiology of Digestion
Lactase hydrolyzes lactose into
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Biology>Human Physiology>Human Nutrition>Physiology of Digestion
Which ONE of the following statements about rennin is CORRECT?
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Biology>Human Physiology>Human Nutrition>Physiology of Digestion
In the digestive system, the pH of the stomach and the intestine, respectively are:
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Biology>Human Physiology>Human Nutrition>Physiology of Digestion
The proteolytic enzyme rennin is found in:
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Biology>Human Physiology>Human Nutrition>Physiology of Digestion
Identify the cells whose secretion protects the lining of gastro-intestinal tract from various enzymes.
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Biology>Human Physiology>Human Nutrition>Physiology of Digestion

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>Human Nutrition>Physiology of Digestion
Which hormones do stimulate the production of pancreatic juice and bicarbonate?
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Biology>Human Physiology>Human Nutrition>Physiology of Digestion
The enzyme that is not present in succus entericus is: