NEET ZoologyUpdated 19 Oct 2026

Digestion and Absorption: NEET PYQs and weightage

Digestion and Absorption carries 3.4 of 100 Zoology marks in NEET by past-paper share: 22 of the 648 tagged NEET Zoology PYQs in the ViJEEta bank (NEET 2013–2026). It ranks 15 of 17 Zoology chapters.

Not in the NEET syllabus now. NTA removed Digestion and Absorption from NEET-UG; it is still in NCERT and school exams. Spend NEET time on the chapters below instead. The PYQs here are from before it was removed.

Take the 25-question Digestion and Absorption test All NEET Zoology chapters

3.4/100 Weight in Zoology

Exam importance (3/5, by past-paper share)

22 NEET PYQs

126 Practice questions

21 With measured difficulty

How the weight is computed: this chapter's tagged NEET PYQs divided by all tagged NEET Zoology PYQs in the bank (22 of 648), times 100, with repeated questions counted once. The bank does not store the year of each NEET question, so none is printed. Computed from the bank at build time. Updated 19 Oct 2026.

How does NEET ask Digestion and Absorption?

8 real previous-year questions from this chapter, as printed in the paper, each with its worked solution. Answer the first one here with no sign-in.

Q1ZoologyNEET UG PYQDigestive system

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Identify the cells whose secretion protects the lining of gastro-intestinal tract from various enzymes.

Answer key (A) & worked solution

Correct answer: Option A

Goblet cells secrete mucus which plays an important role in lubrication and protection of the mucosal epithelium by the highly concentrated HCl.While oxyntic cells secrete HCl and intrinsic factors.

Chief cells secrete proenzyme pepsinogen.

Q2ZoologyNEET UG PYQDigestion of food

The initial step in the digestion of milk in humans is carried out by?

ATrypsin

BRennin

CPepsin

DLipase

Answer key (C) & worked solution

Correct answer: Option C

In humans, pepsin is involved in the initial digestion of proteins stomach while rennin is a proteolytic enzyme in infants (not in adults) and calves which helps in the digestion of milk proteins. Pepsin acts on water-soluble caseinogen (milk protein) to form soluble 'casein'. This combines with calcium salts to form insoluble calcium paracaseinate, which gets readily digested enzymatically.While lipases are involved in the digestion of fats.

The trypsin enzyme is present in pancreatic juice in an inactive form i.e. trypsinogen. It is involved in the digestion of protein, peptones, and proteoses into dipeptides.

Q3ZoologyNEET UG PYQDigestive system

Which of the following guards the opening of hepatopancreatic duct into the duodenum?

ASemilunar valve

BIleocaecal valve

CPyloric sphincter

DSphincter of Oddi

Answer key (D) & worked solution

Correct answer: Option D

The sphincter of Oddi guards the opening of the hepatopancreatic duct into the duodenum. The hepatopancreatic duct brings secretion of the liver as well as pancreas to the duodenum.Whereas the pyloric sphincter guards the opening of the stomach into the duodenum.

Ileocaecal valve- It guards the passage of undigested, unabsorbed food into caecum of large intestine through this valve.

Semilunar valve- Present in heart.

Q4ZoologyNEET UG PYQDigestive system

Match the following structures with their respective location in organs: Column-IColumn-IIACrypts of Lieberkuhn(i)PancreasBGlisson’s Capsule(ii)DuodenumCIslets of Langerhans(iii)Small intestineDBrunner’s Glands(iv)Liver

AA – (ii), B – (iv), C – (i), D – (iii)

BA – (iii), B – (iv), C – (i), D – (ii)

CA – (iii), B – (ii), C – (i), D – (iv)

DA – (iii), B – (i), C – (ii), D – (iv)

Answer key (B) & worked solution

Correct answer: Option B

Crypts of Lieberkuhn are present in the small intestine. Glisson's capsule is present in the liver. Islets of Langerhans constitute the endocrine portion of pancreas and consist of three cells i.e., alpha, beta and delta cells. Brunner's glands are found in the submucosa of the duodenum.

Q5ZoologyNEET UG PYQDigestion of food

The enzyme enterokinase helps in conversion of

ACaseinogen into casein

BPepsinogen into pepsin

CProtein into polypeptides

DTrypsinogen into trypsin

Answer key (D) & worked solution

Correct answer: Option D

Trypsinogen is present in inactive form in pancreatic juice. So, enterokinase enzymes convert inactive trypsinogen to active trypsin. This in turn activates the other enzymes in the pancreatic juice.

Q6ZoologyNEET UG PYQDigestive glands

Which of the following options best represents the enzyme composition of pancreatic juice?

Apeptidase, amylase, pepsin, rennin

Blipase, amylase, trypsinogen, procarboxypeptidase

Camylase, peptidase, trypsinogen, rennin

Damylase, pepsin, trypsinogen, maltase

Answer key (B) & worked solution

Correct answer: Option B

Rennin and Pepsin enzymes are present in the gastric juice. Maltase is present in the intestinal juice. The pancreatic juice contains enzymes such as lipase, amylase, trypsinogen, procarboxypeptidase, chymotrypsinogen, nucleases, and elastase.

Q7ZoologyNEET UG PYQDigestive system

Which of the following gastric cells indirectly help in erythropoiesis?

AMucous cells

BGoblet cells

CChief cells

DParietal cells

Answer key (D) & worked solution

Correct answer: Option D

Parietal or oxyntic cell is a source of HCl and intrinsic factor. HCl converts iron present in diet from ferric to ferrous form so that it can be absorbed easily and used during erythropoiesis. Intrinsic factor is essential for the absorption of vitamin B

_{12}

and its deficiency causes pernicious anemia.While mucous/goblet cells secrete mucus which helps in lubrication.

Chief cells secrete proenzyme pepsinogen.

Q8ZoologyNEET UG PYQDigestive system

A baby boy aged two years is admitted to playschool and passes through a dental check-up. The dentist observed that the boy had twenty teeth. Which teeth were absent?

APre-molars

BMolars

CIncisors

DCanines

Answer key (A) & worked solution

Correct answer: Option A

Total number of teeth in human child = 20. Premolars are absent in primary dentition.

Which topics in Digestion and Absorption carry the most questions?

All 6 topics, by tagged PYQs, then practice questions. Counted from the bank. Updated 19 Oct 2026.

Topic	PYQs	Practice questions
Digestive systemNot in NEET now	12	53
Digestive glandsNot in NEET now	4	30
Digestion of foodNot in NEET now	3	26
Absorption of Digested ProductsNot in NEET now	3	11
Assimilation and Egestion of foodNot in NEET now	0	3
Disorders of Digestive SystemNot in NEET now	0	3

Why does Digestion and Absorption show "–" until you answer 3 questions?

Unknown is not zero. Until you answer at least 3 graded questions in Digestion and Absorption, ViJEEta shows – instead of a zero or a 50% default. Book exercises can raise chapter mastery up to 0.60, adaptive practice up to 0.75, and only a timed chapter test or mock can certify 0.80 and above.

How ViJEEta scores you

What happens when you test Digestion and Absorption?

Every chapter test is 25 questions. It starts at moderate difficulty and adapts after each saved answer. If you open a solution before answering, that attempt earns no credit, so your mastery stays honest.

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Chapters either side of Digestion and Absorption by weight

Biotechnology and Its Applications Weight 4.5/100 Microbes in Human Welfare Weight 3.9/100 Neural Control and Coordination Weight 3.2/100 Excretory Products and Their Elimination Weight 3.1/100