NEET UG · Biology · Digestion and Absorption

Digestive Enzymes: NEET previous year questions

This topic’s chapter, Digestion and Absorption, is not in the NEET UG 2026 syllabus. It had 13 questions from 2017 to 2023; they are kept here for reference.

Asked in 10 years: 13; about 1.3 per paper
Years asked: 7/10; last asked 2023
Syllabus: Dropped; not in NEET UG 2026
Last asked: 2023; 3 papers ago

Key findings

01
Asked in 7 of 10 papers, 13 questions in all: #51 of 204 topics by ten-year total. Last asked in 2023.
02
100% of its questions since 2018 tested an idea never asked before; none repeated an idea from the year before.
03
No idea in this topic has been asked twice: every question tested something new.
04
NEET has asked 10 of the 83 ideas in this topic; 63 have never been asked, directly or indirectly.
05
Mostly asked as one-line MCQ (85%); 77% easy, 0% hard, and down from 1.8 to 0.0 questions a paper since 2024.

Questions per year

Up to 2023: 1.8; per paper
Since 2024: 0.0; -1.8
Usual gap: 1.0 yrs; between papers asking it
Swing: ±1.0; questions, year to year

How it is asked

Difficulty, format and skill

Across all 13 questions on Digestive Enzymes since 2017.

Difficulty

QUESTIONS

103

Easy10 · 77%
Medium3 · 23%
Hard0 · 0%

Format

One-line MCQ · 11 Q85%
Match the lists · 2 Q15%

Skill tested

Recall · 10 Q77%
Concept · 2 Q15%
Application · 1 Q8%

Repeats

New idea, or one asked before?

Each column is a paper. Blue questions tested an idea NEET had not asked before; navy ones went back to an idea from an earlier paper. 2017 is the first paper, so everything in it counts as new.

’17’18’19’20’21’22’23’24’25’26

Idea asked for the first time
Idea asked in an earlier paper

Coverage of the topic

NEET has asked 10 of the 83 ideas in this topic. 63 have never been asked yet.

101063

Asked directly10 · 12%
Touched inside another question10 · 12%
Never asked63 · 76%

Ideas come from Lumi’s syllabus map of NCERT. A never-asked idea is not a safe skip: most new questions come from exactly these.

Drill down

Idea, year, question

Every idea NEET tested in this topic, with its ten papers. Open one to read the questions.

ideaAskedShareYears’17’18’19’20’21’22’23’24’25’26

1 · 8%8%1/10
- 2020 · Q47
  Identify the correct statement with reference to human digestive system.
  easyOne-line MCQNew idea
1 · 8%8%1/10
1 · 8%8%1/10
1 · 8%8%1/10
1 · 8%8%1/10
1 · 8%8%1/10
1 · 8%8%1/10
1 · 8%8%1/10
1 · 8%8%1/10
1 · 8%8%1/10
1 · 8%8%1/10
1 · 8%8%1/10
1 · 8%8%1/10

Squares are the ten papers, 2017 to 2026; darker means more questions. Share is of the level above.

Ideas

Every idea inside this topic

13 different ideas were tested; none came more than once. Salivary Amylase Action is the foundation for 14 other ideas in the syllabus.

Chief Cells Secretion1×
match list on secretory cells
Match the lists · 4% next · foundation for 1
Salivary Amylase Action1×
identify non-function of salivary secretions
One-line MCQ · 4% next · foundation for 14
Sphincter of Oddi Function1×
identify location of structure
One-line MCQ · 4% next
Succus Entericus Composition1×
definition recall
One-line MCQ · 4% next · foundation for 2
Anatomy of the Alimentary Canal1×
true statement selection on digestive system anatomy
One-line MCQ · 4% next
Enterokinase Source and Function1×
identify enzyme function
One-line MCQ · 4% next · foundation for 1
Brunner's Glands Location and Secretion1×
match list on structures and organs
Match the lists · 4% next
Goblet Cells Mucus Secretion1×
identify cell type by function
One-line MCQ · 4% next
Intrinsic Factor and Vitamin B121×
identify cell type by function
One-line MCQ · 4% next
Thecodont, Diphyodont and Heterodont Dentition1×
identify terms describing a structure
One-line MCQ · 4% next
Dental Formula and Milk Teeth1×
application of dental formula
One-line MCQ · 4% next
Pancreatic Juice Enzyme Roster1×
identify composition of a structure
One-line MCQ · 4% next
Paneth Cells and Lysozyme1×
identify cell type by function
One-line MCQ · 4% next

Idea	Times	Format	Chance next	Foundation for
Chief Cells Secretionmatch list on secretory cells	1	Match the listsRecall	4%	1 ideas
Salivary Amylase Actionidentify non-function of salivary secretions	1	One-line MCQConcept	4%	14 ideas
Sphincter of Oddi Functionidentify location of structure	1	One-line MCQRecall	4%	–
Succus Entericus Compositiondefinition recall	1	One-line MCQRecall	4%	2 ideas
Anatomy of the Alimentary Canaltrue statement selection on digestive system anatomy	1	One-line MCQRecall	4%	–
Enterokinase Source and Functionidentify enzyme function	1	One-line MCQRecall	4%	1 ideas
Brunner's Glands Location and Secretionmatch list on structures and organs	1	Match the listsRecall	4%	–
Goblet Cells Mucus Secretionidentify cell type by function	1	One-line MCQRecall	4%	–
Intrinsic Factor and Vitamin B12identify cell type by function	1	One-line MCQConcept	4%	–
Thecodont, Diphyodont and Heterodont Dentitionidentify terms describing a structure	1	One-line MCQRecall	4%	–
Dental Formula and Milk Teethapplication of dental formula	1	One-line MCQApplication	4%	–
Pancreatic Juice Enzyme Rosteridentify composition of a structure	1	One-line MCQRecall	4%	–
Paneth Cells and Lysozymeidentify cell type by function	1	One-line MCQRecall	4%	–

Chance next is the historical rate at which an idea with this record came back in the following paper. It is low for every idea, which is why learning the topic beats memorising past questions. All repeated ideas

Every question

Digestive Enzymes questions, year by year

The opening words of each question as it appeared in the official paper, with the idea it tested.

NEET 20231 question

Q169
Match List I with List II. List I (Cells) | List II (Secretion) A. Peptic cells | I. Mucus B. Goblet cells | II. Bile juice C. Oxyntic…
Idea: Chief Cells Secretion
New ideaEasyMatch the lists

NEET 20221 question

Q158
Which of the following functions is not performed by secretions from salivary glands ?
Idea: Salivary Amylase Action
New ideaEasyOne-line MCQ

NEET 20212 questions

Q168
Succus entericus is referred to as :
Idea: Succus Entericus Composition
New ideaEasyOne-line MCQ
Q178
Sphincter of oddi is present at :
Idea: Sphincter of Oddi Function
New ideaEasyOne-line MCQ

NEET 20202 questions

Q47
Identify the correct statement with reference to human digestive system.
Idea: Anatomy of the Alimentary Canal
New ideaEasyOne-line MCQ
Q59
The enzyme enterokinase helps in conversion of :
Idea: Enterokinase Source and Function
New ideaEasyOne-line MCQ

NEET 20192 questions

Q97
Match the following structures with their respective location in organs : (a) Crypts of Lieberkühn | (i) Pancreas (b) Glisson's Capsule |…
Idea: Brunner's Glands Location and Secretion
New ideaMediumMatch the lists
Q168
Identify the cells whose secretion protects the lining of gastro-intestinal tract from various enzymes.
Idea: Goblet Cells Mucus Secretion
New ideaEasyOne-line MCQ

NEET 20182 questions

Q165
Which of the following gastric cells indirectly help in erythropoiesis ?
Idea: Intrinsic Factor and Vitamin B12
New ideaMediumOne-line MCQ
Q172
Which of the following terms describe human dentition ?
Idea: Thecodont, Diphyodont and Heterodont Dentition
New ideaEasyOne-line MCQ

NEET 20173 questions

Q97
Which cells of 'Crypts of Lieberkuhn' secrete antibacterial lysozyme ?
Idea: Paneth Cells and Lysozyme
EasyOne-line MCQ
Q159
A baby boy aged two years is admitted to play school and passes through a dental check - up. The dentist observed that the boy had twenty…
Idea: Dental Formula and Milk Teeth
MediumOne-line MCQ
Q163
Which of the following options best represents the enzyme composition of pancreatic juice ?
Idea: Pancreatic Juice Enzyme Roster
EasyOne-line MCQ

Questions from the official NEET UG papers published by NTA (CBSE before 2019). Topic and idea tags, counts and notes are Lumi’s.