Digestion and Absorption Test

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Digestion and Absorption Test - 51

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Weekly Quiz Competition

Question 1
1 / -0

The salivary amylase shows maximum digestive action at pH

A
3.6

B
6.8

C
7.5

D
8.5

Solution

Salivary amylase is an enzyme secreted by the salivary glands. This enzyme is necessary for the partial breakdown of carbohydrates to sugars in the mouth. The optimum pH at which it functions is 6.8 and at this pH it has the maximum digestive action. Thus the correct answer is option B.
Question 2
1 / -0

Amylase enzymes act on

A
Starch

B
Protein

C
Fat

D
Sugar

Solution

The carbohydrate starch is a polysaccharide. It is a mixture of amylose and amylopectin. Amylose is made up of long chain of glucose units linked by α-(1→4) glycosidic bonds and amylopectin has both (1→4) glycosidic bonds and α-(1→6) glycosidic branches. Amylase catalyzes the breakdown of starch into glucose. Thus the correct answer is option A.
Question 3
1 / -0

In the digestive system, the pH of the stomach and the intestine, respectively are,

A
Alkaline; acidic

B
Acidic; alkaline

C
Acidic; neutral

D
Acidic; acidic

Solution

The pH of the stomach is acidic of about 1-3 due to the presence of the hydrochloric acid. This acid helps in the activation of the digestive enzymes and killing of the microbes. The pH os the intestine is about 7.5 which is slightly alkaline. This helps in the inactivation of the acid and helps in further digestion of the nutrients.
Thus, the correct answer is option B.
Question 4
1 / -0

Dietary fibres are required by the body for

A
Bowel movement

B
Bodybuilding

C
Fat storage

D
None of the above

Solution

Dietary fibres are the portion of plant desired food that cannot be completely digested by digestive enzymes. They are required by the body for a bowel movement and helps keep the gut healthy.
So the correct answer is 'Bowel movement'.
Question 5
1 / -0

Find out the correct match from the following table :
Column I Column II Column III
I Corpus luteum Progesteron Degeneration of endometrium
II Pineal gland Vasopressin Intracellular transport
III Pars nervosa Coherin Induces contraction of jejunum

A
I only

B
I and II

C
III only

D
II and III

Solution

Coherin is a peptide secreted by the neurohypophysis also called as the pars nervosa. This peptide regulates the motility of intestine in mammals. Hence it is involved in the contraction of jejunum that is necessary for the movement of food through the small intestine during the process of digestion. Thus the correct answer is option C.
Question 6
1 / -0

Lamina propria has nodules of lymphoid tissue which are aggregated to form Peyer's patches in.

A
Submucosa of stomach

B
Submucosa of intestine

C
Submucosa of duodenum

D
None of the above
Question 7
1 / -0

Common enteritis infection in India occurs by

A
Mosquito bite

B
Viruses

C
Ingesting cysts with food and drinks

D
Eating spice rich food

Solution

Enteritis is most often caused by ingesting cysts with food and drinks that are contaminated with the cyst of bacteria or viruses. The germs settle in the small intestine and cause inflammation and swelling.

So, the correct option is ' Ingesting cysts with food and drinks'.
Question 8
1 / -0

Amylopsin acts upon

A
Polypeptides

B
Polysaccharide in any medium

C
Polysaccharide in acidic medium

D
Polysaccharide in alkaline medium

Solution

Amylopsin is the starch digesting enzyme secreted by the pancreas and present in the pancreatic juice. It acts upon starch in the alkaline condition and converts it into the simple sugar. Thus, the correct answer is option D.
Question 9
1 / -0

Villi are seen in the T.S. of.

A
Stomach

B
Liver

C
Pancreas

D
Intestine

Solution

D. Intestine
EXPLANATION: Villi are seen in the T.S. of small intestine. Intestinal villi are small in size. These are finger-like projections that extend into the lumen. Each villus has many microvilli projecting from the epithelial surface. These microvilli form a brush border in the intestine.
Question 10
1 / -0

Pyloric sphincter guards the opening between

A
Stomach and duodenum

B
Cardio and fundus

C
Esophagus and stomach

D
Fundus and pylorus

Solution

Pyloric sphincter guards are the opening between the pylorus of the stomach and the duodenum of the small intestine. It periodically permits partially digested food to leave the stomach and enter the duodenum.
So, the correct answer is option A.

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Re-Attempt Weekly Quiz Competition

	Column I	Column II	Column III
I	Corpus luteum	Progesteron	Degeneration of endometrium
II	Pineal gland	Vasopressin	Intracellular transport
III	Pars nervosa	Coherin	Induces contraction of jejunum

Digestion and Absorption Test - 51

Result

Digestion and Absorption Test - 51

Score

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Rank

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SHARING IS CARING

Question 1

3.6

6.8

7.5

8.5

Solution

Question 2

Starch

Protein

Fat

Sugar

Solution

Question 3

Alkaline; acidic

Acidic; alkaline

Acidic; neutral

Acidic; acidic

Solution

Question 4

Bowel movement

Bodybuilding

Fat storage

None of the above

Solution

Question 5

I only

I and II

III only

II and III

Solution

Question 6

Submucosa of stomach

Submucosa of intestine

Submucosa of duodenum

None of the above

Question 7

Mosquito bite

Viruses

Ingesting cysts with food and drinks

Eating spice rich food

Solution

Question 8

Polypeptides

Polysaccharide in any medium

Polysaccharide in acidic medium

Polysaccharide in alkaline medium

Solution

Question 9

Stomach

Liver

Pancreas

Intestine

Solution

Question 10

Stomach and duodenum

Cardio and fundus

Esophagus and stomach

Fundus and pylorus

Solution

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