DIGESTION AND ABSORPTION biology MCQ’s questions answers

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DIGESTION AND ABSORPTION

Question 1 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Given diagram represents the transverse section of alimentary canal. Label it correctly and choose the correct option accordingly:
A
a-Mucosa, b-Inner longitudinal, c-Outer circular, d-Submucosa, e-Serosa, f-Lumen.
B
a-Serosa, b-Inner longitudinal, c-Outer circular, d-Submucosa, e-Mucosa, f-Lumen.
C
a-Serosa, b-Inner circular, c-Outer longitudinal, d-Submucosa, e-Mucosa, f-Lumen.
D
a-Mucosa, b-Inner circular, c-Outer longitudinal, d-Submucosa, e-Serosa, f-Lumen
Question 2 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Go through the following statements regarding starch digestion. Separate true and false statements and select the correct option:
(i) Digestion of starch start from the mouth.
(ii) Around 30% of the starch is digested in the stomach.
(iii) Digestion of food requires the action of pancreatic juice.
(iv) Digestion of food is completed in the longest part of the alimentary canal.
A
All are true
B
(i), (iii) and (iv) are true but (ii) is false.
C
(ii) and (iii) are false while (i) and (iv) are true
D
(ii) and (iv) are false while (i) and (iii) are true.
Question 3 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Proteolytic enzymes do not corrode the lining of alimentary canal because:
A
They are secreted in inactive form
B
Lining layer of alimentary canal does not contain proteins
C
These enzymes are not capable of digesting fat layer of stomach
D
None of these
Question 4 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following statement is incorrect:
A
Parotid glands is the largest salivary gland which are situated near the ears
B
Liver contains Kupffer cells which are phagocytic in nature
C
Humans have three pairs of salivary glands-parotid, submaxillary and infraorital
D
Bulk of the tooth in mammals is made up of dentine
Question 5 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Series of small pockets due to constrictions in the wall of colon is called:
A
Villi
B
Haustra
C
Rugae
D
Payer's patches.
There are 5 questions to complete.

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