Practice Digestive System RRB PYQ questions from Railway examinations, including RRB NTPC PYQ, RRB Group D PYQ, RRB JE PYQ, RRB ALP PYQ and RRB Technician PYQ. This topic-wise Biology question set covers important concepts related to the human digestive system, digestive organs, digestive glands, enzymes and the process of digestion.
The questions cover important areas such as the mouth, oesophagus, stomach, small intestine, large intestine, liver, pancreas, salivary glands, bile, digestive enzymes, absorption of nutrients and the functions of different parts of the digestive system. These concepts are important for General Science and Biology preparation for Railway examinations.
If you are preparing for RRB NTPC Digestive System PYQ, RRB Group D Digestive System PYQ, RRB JE Digestive System PYQ, RRB ALP Digestive System PYQ, or RRB Technician Digestive System PYQ, practice these previous year questions regularly to strengthen your Biology preparation.
Start practicing Digestive System RRB PYQs with answers and explanations to strengthen your Railway Biology preparation.
71
Which features enable intestinal villi to absorb digested food? (i) Finger-like shape and very thin walls. (ii) Large surface area. (iii) Small pores for food to pass through. (iv) Rich blood-capillary supply.
RRB Group-D
26/08/2022 / Shift III
2022
✓ Answer:A(i), (ii) and (iv)
Villi provide a large, thin absorptive surface with a rich blood supply. Nutrients cross the epithelial lining rather than passing through simple pores.
72
Which of the following is largest in the human body?
RRB JE
14/12/2014 / Yellow Paper
2014
✓ Answer:BLiver
The liver is the largest of the listed organs and the largest gland in the human body.
73
The duodenum is part of the:
RRB NTPC (Stage-I)
26/04/2016 / Shift I
2016
✓ Answer:ASmall intestine
The duodenum is the first part of the small intestine, followed by the jejunum and ileum.
74
The adult human alimentary canal is conventionally described as approximately how many metres long from mouth to anus?
RRB NTPC (Stage-I)
05/04/2016 / Shift III
2016
✓ Answer:D9
The source uses the conventional approximate length of 9 m; measured length varies with method and muscle tone.
75
Which acid is secreted in the human digestive system?
RRB Group-D
24/10/2018 / Shift II
2018
✓ Answer:DHydrochloric acid
The stomach secretes hydrochloric acid, which supports pepsin activity.
76
Which digestive organ is shaped roughly like the letter J?
RRB NTPC (Stage-I)
13/03/2021 / Shift II
2021
✓ Answer:BStomach
The stomach is commonly described as a J-shaped muscular organ.
77
Which receptors are found on the tongue for tasting food?
RRB NTPC (Stage-I)
10/01/2021 / Shift I
2021
✓ Answer:CGustatory receptors
Gustatory receptor cells within taste buds detect dissolved chemicals.
78
_____ rings are present in the windpipe in the throat region.
RRB Group-D
25/09/2018 / Shift II
2018
✓ Answer:ACartilage
C-shaped cartilaginous rings support the trachea and prevent its collapse. The source loosely says 'throat'.
79
Gastric juice contains:
RRB NTPC (Stage-I)
26/04/2016 / Shift I
2016
✓ Answer:AHCl
The intended answer is hydrochloric acid, the characteristic acid of gastric juice. Gastric fluid also contains dissolved salts, so 'contains' is broader than the intended question.
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