Digestion and Absorption Test

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Digestion and Absorption Test - 3

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Weekly Quiz Competition

Question 1
1 / -0

Which among the following is not in the wall of alimentary canal?

A
Mucosa

B
Serosa

C
Sub-serosa

D
Sub-mucosa

Solution

The wall of alimentary canal from oesophagus to rectum possesses four layers namely serosa, muscularis, sub-mucosa and mucosa.
Question 2
1 / -0

Which layer of alimentary canal forms villi?

A
Muscularis

B
Mucosa

C
Sub-mucosa

D
Serosa

Solution

Mucosa layer forms irregular folds (rugae) in the stomach and small finger-like foldings called villi in the small intestine
Question 3
1 / -0

Read the following statements :
i. Opening of hepato-pancreatic duct into jejunum is guarded by Sphincter of Oddi.
ii. Duodenum receives bile-pancreatic duct.

A
Statement ii) is wrong and i) is correct

B
Statement ii) is correct and i) is wrong

C
both are correct

D
both are wrong

Solution

Duodenum receives bile from pancreatic duct. Bile contains bile juice that contain bile salt used for emulsification of fat. Sphincter of Oddi is not present between hepatic-pancreatic duct into jejunum.
Question 4
1 / -0

The dental formula for human deciduous and permanent set are :
212/212 and 2123/2123
So the deciduous set lacks :

A
Molars

B
Canines

C
Premolars

D
Incisors

Solution

Arrangement of teeth in each half of the upper and lower jaw in the order I, C, P, M,

is represented by a dental formula which in human is 2123/2123. 212/212 lacks premolar.

Question 5

1 / -0

Match the following:

Nutrient	Absorbable Forms
a) Carbohydrate	i) Amino acids
b) Nucleic acid	ii) Monosaccharides
c) Proteins	iii) Sugar and bases
d) Lipids	iv) Fatty acids and glycerol

a) - ii

b) - iii

c) - iv

d) - i

a) - ii

b) - i

c) - iv

d) - iii

a) - ii

b) - iii

c) - i

d) - iv

a) - iv

b) - i

c) - ii

d) - iii

Solution

Carbohydrate are converted into monosaccharides, nucleic acid are converted into sugar and bases by nucleosidases, proteins are converted into amino acids by dipeptidases and lipids are converted into fatty acids and glycerol by lipases.

Question 6
1 / -0

Which layer of alimentary canal is formed of loose connective tissues?

A
Muscularis

B
Mucosa

C
Serosa

D
Sub-mucosa

Solution

The submucosa consists of a dense and irregular layer of loose connective tissue with blood vessels, lymphatics, and nerves branching into the mucosa and muscular layer. It contains the submucous plexus, and enteric nervous plexus, situated on the inner surface of the muscular layer.
Question 7
1 / -0

The enzyme which hydrolyze the starch is

A
Amylase

B
Lipases

C
Carboxypeptidase

D
Lysozyme

Solution

The enzymes that break down or hydrolyze starch into the constituent sugars are known as amylases.
Alpha-amylases are found in plants and in animals.
Human saliva is rich in amylase, and the pancreas also secretes the enzyme.
Question 8
1 / -0

What should be filled in to replace question mark in the following sequence :?
Trypsinogen →Trypsin

A
Enterokinase

B
Carboxypeptidase

C
Intestinal Protease

D
Tryptokinase

Solution

Trypsinogen is activated by an enzyme, enterokinase, secreted by the intestinal mucosa into active trypsin.
Question 9
1 / -0

The secretions released into small intestine are

A
Bile and intestinal juices.

B
Pancreatic and intestinal juices

C
Bile, pancreatic and intestinal juices.

D
Bile and pancreatic juices

Solution

The bile, pancreatic juice and the intestinal juice are the secretions released into the small intestine.

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Digestion and Absorption Test - 3

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Digestion and Absorption Test - 3

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Question 1

Mucosa

Serosa

Sub-serosa

Sub-mucosa

Solution

Question 2

Muscularis

Mucosa

Sub-mucosa

Serosa

Solution

Question 3

Statement ii) is wrong and i) is correct

Statement ii) is correct and i) is wrong

both are correct

both are wrong

Solution

Question 4

Molars

Canines

Premolars

Incisors

Solution

Question 5

a) - ii b) - iii c) - iv d) - i

a) - ii b) - i c) - iv d) - iii

a) - ii b) - iii c) - i d) - iv

a) - iv b) - i c) - ii d) - iii

Solution

Question 6

Muscularis

Mucosa

Serosa

Sub-mucosa

Solution

Question 7

Amylase

Lipases

Carboxypeptidase

Lysozyme

Solution

Question 8

Enterokinase

Carboxypeptidase

Intestinal Protease

Tryptokinase

Solution

Question 9

Bile and intestinal juices.

Pancreatic and intestinal juices

Bile, pancreatic and intestinal juices.

Bile and pancreatic juices

Solution

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a) - ii

b) - iii

c) - iv

d) - i

a) - ii

b) - i

c) - iv

d) - iii

a) - ii

b) - iii

c) - i

d) - iv

a) - iv

b) - i

c) - ii

d) - iii