Digestion and Absorption Test

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Digestion and Absorption Test - 20

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Weekly Quiz Competition

Question 1
1 / -0

Some proteolytic enzymes are

A
Trypsin, erepsin, pepsin

B
Amylopsin, steapsin, protease

C
Amylase, lipase, zymase

D
Urease, zymase, dehydrogenase

Solution

Trypsin is a serine protease produced in the pancreas. It catalyzes the hydrolysis of peptide bonds, breaking down into smaller peptides. Erepsin is a protein found in intestinal juices and contains the group of enzymes that digest peptones into amino acids. Pepsin is an enzyme present in the stomach. It degrades food proteins into peptides.
Question 2
1 / -0

Sacculus rotundus is present in

A
Duodenum of rabbit

B
Ileum of frog

C
Ileum of rabbit

D
Colon of rabbit

Solution

The sacculus rotundus is the structure present at the terminal end of the ileum of the rabbit. It is rich in lymphoid tissues. It helps in digestion and provides immunity to the rabbit.
So, the correct answer is option C.
Question 3
1 / -0

Trypsin is related with digestion of

A
Carbohydrates

B
Proteins

C
Fat

D
None of the above

Solution

Trypsin is a serine protease produced in the pancreas. It catalyzes the hydrolysis of peptide bonds of proteins, breaking down into smaller peptides
Question 4
1 / -0

Pepsin acts on

A
Fats

B
Proteins

C
Carbohydrates

D
Glucose

Solution

Pepsin is an enzyme present in stomach. It degrades food proteins into peptides.
Question 5
1 / -0

Digestion of carbohydrate is affected by

A
Erepsin

B
Steapsin

C
Pepsin

D
Less amount of amylase

Solution

Erepsin is found in the intestinal juices and contains group of enzymes that digest peptones into amino acids.
Steapsin is found in the pancreatic juices and is a type of lipase which catalyzes the hydrolysis of triglycerides to fatty acids and glycerol.
Pepsin is an enzyme produced by stomach and is involved in the breaks down of proteins into smaller peptides.
Amylase is an enzyme secreted by mouth as well as pancreas. It helps in digestion of carbohydrates.
Thus, the correct option is option D.
Question 6
1 / -0

The diagram of the large intestine of man is given above. Identify the parts labelled A, B, C, D, E and F.

A
A- Sigmoid colon, B- Vermiform appendix, C- Ascending colon, D- Transverse colon, E- Descending colon, F-Caecum.

B
A- Caecum, B- Vermiform appendix, C- Sigmoid colon, D- Ascending colon, E- Transverse colon, F- Descending colon.

C
A- Caecum, B- Vermiform appendix, C- Ascending colon, D- Transverse colon, E- Descending colon, F- Sigmoid colon.

D
A- Sigmoid colon, B- Vermiform appendix, C- Descending colon, D- Transverse colon, E- Ascending colon, F- Caecum.

Solution

The labelled diagram of the large intestine is as above.
Question 7
1 / -0

Alpha 1, 4, glycosidic bonds are broken when

A
Lipid is digested by lipase

B
Protein is digested by pepsin

C
Starch is digested by amylase

D
None of the above

Solution

Starch is a polymeric carbohydrate made up of large number of glucose units that are joined together by glycosidic bonds.
Amylase is an enzyme that digest carbohydrates. It is secreted by the salivary gland. It acts on the alpha-1, 4-glycosidic linkages of alpha-linked polysaccharides, such as starch and glycogen to yield oligosaccharides.
Thus, the correct answer is option C.
Question 8
1 / -0

Which one of the following will not take place when glucose is taken as food?

A
Ingestion

B
Digestion

C
Absorption

D
Assimilation

Solution

Glucose and galactose are taken into the enterocyte by co-transport with sodium. Hence, if we have straight glucose, it can absorb directly into the bloodstream without further digestion.
Question 9
1 / -0

Rennin acts on milk proteins and converts

A
Caseinogen into casein

B
Casein into paracasein

C
Caseinogen into paracasein

D
Paracasein into carcinogen
Solution
Rennin is a proteolytic enzyme found in gastric juice of infants.
This enzyme causes coagulation of milk and is important in the digestive processes of infants because it prevents the rapid passage of milk from the stomach.
In the presence of calcium, rennin changes irreversibly the casein of milk to a paracasein which is then acted upon by pepsin. Hence, Rennin acts on milk proteins and converts Casein into paracasein.
So, the correct answer is 'Casein into paracasein'.
Question 10
1 / -0

In humans, cellulose is digested in

A
The caecum

B
The colon

C
The appendix

D
Not digested at all

Solution

Humans do not have the enzyme cellulase to degrade the beta-1, 4 glycosidic bonds of cellulose. So humans are unable to digest cellulose.

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Digestion and Absorption Test - 20

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Digestion and Absorption Test - 20

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Question 1

Trypsin, erepsin, pepsin

Amylopsin, steapsin, protease

Amylase, lipase, zymase

Urease, zymase, dehydrogenase

Solution

Question 2

Duodenum of rabbit

Ileum of frog

Ileum of rabbit

Colon of rabbit

Solution

Question 3

Carbohydrates

Proteins

Fat

None of the above

Solution

Question 4

Fats

Proteins

Carbohydrates

Glucose

Solution

Question 5

Erepsin

Steapsin

Pepsin

Less amount of amylase

Solution

Question 6

A- Sigmoid colon, B- Vermiform appendix, C- Ascending colon, D- Transverse colon, E- Descending colon, F-Caecum.

A- Caecum, B- Vermiform appendix, C- Sigmoid colon, D- Ascending colon, E- Transverse colon, F- Descending colon.

A- Caecum, B- Vermiform appendix, C- Ascending colon, D- Transverse colon, E- Descending colon, F- Sigmoid colon.

A- Sigmoid colon, B- Vermiform appendix, C- Descending colon, D- Transverse colon, E- Ascending colon, F- Caecum.

Solution

Question 7

Lipid is digested by lipase

Protein is digested by pepsin

Starch is digested by amylase

None of the above

Solution

Question 8

Ingestion

Digestion

Absorption

Assimilation

Solution

Question 9

Caseinogen into casein

Casein into paracasein

Caseinogen into paracasein

Paracasein into carcinogen

Solution

Question 10

The caecum

The colon

The appendix

Not digested at all

Solution

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