Which one of the following is the correct matching of the site of action on the given

substrate, the enzyme acting upon it and the end product?
1. Duodenum :TriglyceridesTrypsinMonoglycerides
2. Small intestine :Starchα-amylaseDisaccharide (maltose)
3. Small intestine :ProteinsPepsinAmino Acids
4. Stomach :Fats LipaseMicelles

Subtopic:  Pancreatic Secretions | Intestinal Secretions | Absorption: Part 1 | Absorption: Part 2 | Absorption |
 51%
NEET - 2008
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The following is a scheme showing the fate of carbohydrates during digestion in the

human alimentary canal. Identify the enzymes acting at stages indicated as A, B, C

and D. Choose the correct option from those given.


1. A = Amylase, B = Maltase, C = Lactase,D = Invertase

2. A = Amylase, B = Maltase, C = Invertase,D = Lactase

3. A = Amylase, B = Invertase, C = Maltase, D = Lactase

4. A = Amylase, B = Lactase, C = Maltase, D = Invertase

Subtopic:  Movement of Food in Gut |
 86%
From NCERT
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During digestion, before the action of lipase, fat is emulsified by:-

1. ergosterols

2. phospholipids

3. lipoproteins

4. digitonin

Subtopic:  Pancreatic Secretions |
 54%
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Which of the folowing teeth are lophodont ?

1. Incisor and canine

2. Canine and premolar

3. Premolar and molar

4. Premolar and incisor

Subtopic:  Alimentary Canal: Oral Cavity & Teeth |
 56%
AIIMS - 2002
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Which of the following digestive juices has the minimum pH value ?

1. Bile

2. Gastric juice

3. Saliva

4. Pancreatic juice

Subtopic:   DIGESTION OF FOOD |
 72%
From NCERT
AIIMS - 2002
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In adults, curdling of the milk in small intestine occurs due to the action of

1. rennin

2. erypsine

3. trypsin

4. chymotrypsin

Subtopic:  Gastric Secretions |
AIIMS - 2002
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Excessive stimulation of vagus nerve in humans may lead to:

1. hoarse voice

2. peptic ulcers

3. efficient digestion of proteins

4. irregular contractions of diaphragm.

Subtopic:  Gastric Secretions |
 53%
AIIMS - 2003
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Which one of the following pairs of the kind of cells and their secretion is correctly matched ?

(1) Oxyntic cells --- a secretion with pH between 2.0 and 3.0

(2) Alpha cells of islets of Langerhans ---- secretion that decreases blood sugar level

(3) Kupffer cells --- a digestive enzyme that hydrolyses nucleic acids

(4) Sebaceous glands --- a secretion that evaporates for cooling

Subtopic:  Accessory Digestive Glands |
 54%
AIIMS - 2006
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Which match is true?

Subtopic:  Disorders of Digestive System |
 83%
AIIMS - 2007
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A child took sugar cane and sucked its juice. Regarding this which of the following match is correct ?

 

Substrate

Enzyme

Site of secretion of enzyme

Products formed

(1)

Proteins

Pepsin

Duodenum

Polypetides

(2)

Starch

Amylase

Salivary glands

Glucose

(3)

Lipids

Lipase

Pancreas

Fat globules

(4)

Sucrose

Invertase

Duodenum

Glucose + Fructose

Subtopic:  Gastric Secretions | Pancreatic Secretions | Intestinal Secretions |
 68%
AIIMS - 2007
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