Digestion and Absorption Test

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Digestion and Absorption Test - 61

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Question 1
1 / -0

The substrate of salivary amylase is

A
protein

B
starch

C
glucose

D
maltose

Solution

Saliva contains the digestive enzyme, amylase, which works on starch present in carbohydrate rich food material like bread, rice etc to help break them down into simple sugars
So, the correct answer is 'Starch'
Question 2
1 / -0

The large intestine in humans

A
is connected to the stomach

B
absorbs water

C
is the longest part of the intestinal tract

D
digests all types of food

Solution

The major function of the large intestine is to absorb water from the remaining indigestible food matter and remove the waste material from the body
So, the correct answer is 'Absorb water'
Question 3
1 / -0

Choose the correct answers from the alternatives given.
Succus entericus is the name given to

A
a junction between ileum and large intestine

B
intestinal juice

C
swelling in the gut

D
appendix

Solution

In histology, Succus entericus an intestinal juice secreted by gland (also crypt of Lieberkuhn and intestinal crypt) is a gland found in the intestinal epithelium lining of the small intestine
So, the correct answer is 'Intestinal juice'
Question 4
1 / -0

Isomaltase catalyzes the hydrolysis of bonds as shown in

A
glc(1-6)glc

B
glc(1-4)glc

C
gal(1-6)glc

D
fru(1-6)glc

Solution

Isomaltase is an enzyme that breaks the bonds linking saccharides, which cannot be broken by amylase or maltase. It digests polysaccharides at the alpha 1-6 linkages
So, the correct option is 'glc(1-6)glc'

Question 5

1 / -0

Write proper option by matching column I, II and III.

Column I (Name)	Column II (Enzyme)	Column III (Function)
I - Gastric Juice	P - Chymotrypsinogen	A - Dipeptide convert into amino acid
II - Intestinal Juice	Q - Prylin	B - Proteoses convert into small polypeptides
III - Saliva	R - Renin	C - Casein convert into paracasein
IV - Pancreatic juice	S - Erepsin	D - Conversion of starch into maltose

(I - R - C), (II - S - A), (III - Q - B), (IV - P - D)

(I - R - C), (II - S - A), (III - Q - D), (IV - P - B)

(I - S - D), (II - R - C), (III - P - B), (IV - Q - A)

(I - Q - A), (II - P - C), (III - R - B), (IV - S - D)

Solution

Gastric juice is secreted by the stomach. It contains digestive enzymes pepsin and renin, hydrochloric acid, mucus. Renin converts casein convert into paracasein.

Intestinal juice contains hormones, digestive enzymes, mucus and erepsin enzyme. Erepsin enzyme digests dipeptides into amino acids.

Saliva is secreted by salivary glands. It contains the enzyme ptyalin. It is also called as an enzyme. It converts starch into simpler sugars like maltose and dextrin.

Pancreatic juice is secreted by the pancreas. It contains enzymes like trypsinogen, chymotrypsinogen, carboxypeptidase, pancreatic lipase, nucleases and amylase.

Chymotrypsinogen is a proteolytic enzyme. It hydrolyzes proteoses into small polypeptides.

Thus, the correct answer is option B.

Question 6
1 / -0

Which part of the mammalian alimentary canal does not secrete any enzyme?

A
Mouth

B
Oesophagus

C
Stomach

D
Duodenum

Solution

'Oesophagus' does not secrete any enzyme.
So the correct option is B.
Question 7
1 / -0

Which of the following statements is incorrect?

A
Brunner's glands are submucosal.

B
Irregular folds of gastric mucosa are rugae.

C
Glisson's capsule is the connective tissue sheath of hepatic lobule.

D
Mesothelium or serosa lies in close proximity to the circular layer of muscularis.

Solution

The correct answer is (d).
Question 8
1 / -0

Stenson's duct is associated with

A
parotid gland

B
cardiac gland

C
pancreatic gland

D
thyroid gland.

Solution

A duct, called Stenson's duct, drains saliva from the parotid gland into the mouth, at the area of the upper cheeks. It primarily secretes serous saliva.
So, option A is the correct option.
Question 9
1 / -0

A lubricant mucin, in saliva, is made up of

A
Polyunsaturated fats

B
Actin and myosin

C
Glycoproteins

D
Phospholipids

Solution

A. Polyunsaturated fats are the fats in which hydrocarbon chain has two or more double bonds.
B. Actin and myosin are the protein filaments which help in muscle contraction.
C. Proteins associated with carbohydrates i.e. sugars attached to them, are called glycoproteins.
D. Lipids that contain a phosphate group, are called phospholipids.
The lubricant mucin in saliva is a glycoprotein.
So, the correct answer is 'Glycoproteins'.
Question 10
1 / -0

Which of the following is not a salivary gland?

A
Sublingual

B
Submaxillary

C
Lacrimal

D
Parotid

Solution

The lacrimal glands are paired exocrine glands, one for each eye that secretes the aqueous layer of the tear film. In humans, they are situated in the upper lateral region of each orbit, in the lacrimal fossa of the orbit formed by the frontal bone. While, sublingual, sub maxillary and parotid are salivary glands.
So, option C is the correct option.

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Re-Attempt Weekly Quiz Competition

Digestion and Absorption Test - 61

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Digestion and Absorption Test - 61

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SHARING IS CARING

Question 1

protein

starch

glucose

maltose

Solution

Question 2

is connected to the stomach

absorbs water

is the longest part of the intestinal tract

digests all types of food

Solution

Question 3

a junction between ileum and large intestine

intestinal juice

swelling in the gut

appendix

Solution

Question 4

glc(1-6)glc

glc(1-4)glc

gal(1-6)glc

fru(1-6)glc

Solution

Question 5

(I - R - C), (II - S - A), (III - Q - B), (IV - P - D)

(I - R - C), (II - S - A), (III - Q - D), (IV - P - B)

(I - S - D), (II - R - C), (III - P - B), (IV - Q - A)

(I - Q - A), (II - P - C), (III - R - B), (IV - S - D)

Solution

Question 6

Mouth

Oesophagus

Stomach

Duodenum

Solution

Question 7

Brunner's glands are submucosal.

Irregular folds of gastric mucosa are rugae.

Glisson's capsule is the connective tissue sheath of hepatic lobule.

Mesothelium or serosa lies in close proximity to the circular layer of muscularis.

Solution

Question 8

parotid gland

cardiac gland

pancreatic gland

thyroid gland.

Solution

Question 9

Polyunsaturated fats

Actin and myosin

Glycoproteins

Phospholipids

Solution

Question 10

Sublingual

Submaxillary

Lacrimal

Parotid

Solution

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