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.
31
Which of the following is considered a balanced food in itself?
RRB Group-D
11/10/2022 / Shift II
2022
✓ Answer:BMilk
Source key: B. Milk supplies several nutrients, including protein, fat, carbohydrate and calcium. It is not a complete balanced diet for all ages and is relatively low in iron and vitamin C.
32
Where do bacteria digest cellulose in animals such as horses and rabbits?
RRB Group-D
22/09/2022 / Shift III
2022
✓ Answer:ACaecum
The caecum is an important microbial fermentation chamber in these hindgut-fermenting herbivores.
33
Which is the largest gland in the human body?
RRB NTPC (Stage-I)
21/01/2021 / Shift I
2021
✓ Answer:CLiver
The liver is the body's largest gland.
34
Which food is considered balanced in itself and good for adolescents in the source question?
RRB Group-D
30/09/2022 / Shift III
2022
✓ Answer:AMilk
Source key: A. Milk provides protein, calcium, carbohydrate and fat, but it is not a complete balanced diet on its own and is relatively low in iron and vitamin C.
35
Which enzyme requires the acidic environment provided by hydrochloric acid for its digestive action?
RRB Group-D
01/09/2022 / Shift I
2022
✓ Answer:CPepsin
Hydrochloric acid activates pepsinogen and provides the acidic conditions in which pepsin acts.
36
Which is the largest internal organ in the human body?
RRB JE
23/05/2019
2019
✓ Answer:ALiver
The liver is the largest solid internal organ.
37
What is the primary reason for including roughage in a balanced human diet?
RRB NTPC (Graduate level)
13/06/2025 / Shift II
2025
✓ Answer:CIt aids digestion and prevents constipation
Dietary fibre adds bulk to stool and supports regular bowel movements, helping prevent constipation.
38
Hydrochloric acid secreted by gastric glands facilitates the action of which enzyme?
RRB Group-D
22/09/2018 / Shift I
2018
✓ Answer:APepsin
The acidic gastric environment favours pepsin activity and conversion of pepsinogen to pepsin.
39
The sight of delicious food making the mouth water is a:
RRB JE
14/12/2014 / Green Paper
2014
✓ Answer:BNeurological reaction
Salivation in response to the sight of food is a nerve-mediated reflex.
40
Which does NOT function as an excretory organ in humans?
RRB Group-D
18/08/2022 / Shift III
2022
✓ Answer:CSmall intestine
Source key: C. The small intestine mainly digests food and absorbs nutrients. The source uses excretion broadly: elimination of undigested food by the large intestine is more precisely egestion.
Showing 31 – 40 of 125 MCQ Questions | Page 4 of 13
Tags: Digestive System RRB Biology PYQ, Digestive System Previous Year Questions, RRB NTPC Digestive System PYQ, RRB Group D Digestive System PYQ, RRB JE Digestive System PYQ, RRB ALP Digestive System PYQ, RRB Technician Digestive System PYQ, Digestive System Questions for Railway Exams, Digestive System MCQ for RRB Exams, Human Digestive System RRB PYQ
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