NEET Zoology Chemical Coordination and Integration PYQ Analysis 2020–2026: Topic-wise Trends & Practice
Chemical Coordination and Integration (NEET Zoology): 15 questions in 2020–2026, 3.9% of the subject. Topic-wise trends, difficulty split, repeated topics and PYQ practice.
Edurack Team
October 13, 2026
Chemical Coordination and Integration gave 15 of the 388 NEET Zoology questions asked between 2020 and 2026 (Re-NEET 2026 included). That is 3.9% of the subject and the #12 chapter out of 16 by weightage, about 1.9 questions per paper. It peaked at 4 in NEET 2025.
Of the 15 questions tagged for difficulty, 53% were easy, 34% medium and 13% hard, so this is a chapter where NCERT-level preparation pays off directly.
It has been asked more often lately: 2.7 questions per paper across 2025, 2026 and Re-NEET 2026, against 1.3 per paper in 2020–2022.
Year-wise questions from Chemical Coordination and Integration
| Paper | Questions |
|---|---|
| NEET 2020 | 2 |
| NEET 2021 | 0 |
| NEET 2022 | 2 |
| NEET 2023 | 1 |
| NEET 2024 | 2 |
| NEET 2025 | 4 |
| NEET 2026 | 1 |
| Re-NEET 2026 | 3 |
Difficulty split
| Level | Questions | Share |
|---|---|---|
| Easy | 8 | 53% |
| Medium | 5 | 34% |
| Hard | 2 | 13% |
Topic-wise analysis
Every topic tagged under Chemical Coordination and Integration, most-asked first. "Papers" is the number of the 8 papers in which the topic appeared.
| Topic | Total Qs | Easy | Medium | Hard | Papers | Asked in |
|---|---|---|---|---|---|---|
| Thyroid (Hormones and Function) | 2 | 0 | 1 | 1 | 2 | 2023 and 2024 |
| Pituitary Gland (Anterior and Posterior Puituitary) | 2 | 0 | 2 | 0 | 1 | Re-NEET 2026 |
| Adrenal Gland (Adrenal Cortex and its Hormones) | 1 | 1 | 0 | 0 | 1 | 2020 |
| Adrenal Gland (Adrenal Medulla and its Hormones) | 1 | 0 | 0 | 1 | 1 | 2025 |
| Classification of Hormone (Protein Hormone and Steroid Hormone) | 1 | 1 | 0 | 0 | 1 | 2024 |
| Hormonal Disorders (Examples) | 1 | 0 | 1 | 0 | 1 | 2020 |
| Hormones (Current and Scientific Definition of Hormones) | 1 | 1 | 0 | 0 | 1 | 2022 |
| Hormones of Gastrointestinal Tract (GI Tract Hormone and its Function) | 1 | 1 | 0 | 0 | 1 | 2025 |
| Human Endocrine System (Location of Endocrine Glands and Organs in Human Bo…) | 1 | 1 | 0 | 0 | 1 | 2026 |
| Hypothalamus (Location of Hypothalamus, Hypothalamic Hormone) | 1 | 1 | 0 | 0 | 1 | 2025 |
| Ovary (Hormones and Function) | 1 | 1 | 0 | 0 | 1 | 2025 |
| Pancreas (Insulin and Glucagon) | 1 | 1 | 0 | 0 | 1 | Re-NEET 2026 |
| Parathyroid (Hormones and Function) | 1 | 0 | 1 | 0 | 1 | 2022 |
Which topics matter most
Most-tested topics
- Thyroid (Hormones and Function): 2 Qs
- Pituitary Gland (Anterior and Posterior Puituitary): 2 Qs
- Adrenal Gland (Adrenal Cortex and its Hormones): 1 Q
- Adrenal Gland (Adrenal Medulla and its Hormones): 1 Q
- Classification of Hormone (Protein Hormone and Steroid Hormone): 1 Q
What the latest papers asked
Topics from NEET 2026 and Re-NEET 2026:
- Pituitary Gland (Anterior and Posterior Puituitary)
- Human Endocrine System (Location of Endocrine Glands and Organs in Human Bo…)
- Pancreas (Insulin and Glucagon)
Where the hard questions came from
- Thyroid (Hormones and Function): 1 hard of 2
- Adrenal Gland (Adrenal Medulla and its Hormones): 1 hard of 1
How to use this data
- No single topic dominates here. The 13 topics are spread widely, with 11 asked only once, so cover the whole NCERT chapter rather than a short list.
- 53% of tagged questions were easy, so NCERT lines, definitions and standard examples are worth locking in first.
- Re-solve the 3 topics from NEET 2026 and Re-NEET 2026, since they show the current style of questions.
- Then attempt the chapter's past questions under a timer and note which topics cost you marks.
Practise Chemical Coordination and Integration PYQs
Solve every Chemical Coordination and Integration question from 2020–2026 with solutions on Edurack:
- Practise Chemical Coordination and Integration PYQs
- See the full Chemical Coordination and Integration blueprint page
- NEET Zoology PYQ analysis: all chapters
Related chapters
- Body Fluids and Circulation: #11 in Zoology, 18 questions
- Excretory Products and their Elimination: #13 in Zoology, 15 questions
Frequently Asked Questions
How many questions came from Chemical Coordination and Integration in NEET 2020–2026?
Chemical Coordination and Integration contributed 15 NEET Zoology questions across the 8 papers from 2020–2026, which is 3.9% of the subject.
Which topics of Chemical Coordination and Integration are asked most often?
The most-tested topics are Thyroid (Hormones and Function): 2 Qs, Pituitary Gland (Anterior and Posterior Puituitary): 2 Qs and Adrenal Gland (Adrenal Cortex and its Hormones): 1 Q.
Is Chemical Coordination and Integration easy or difficult in NEET?
Of 15 difficulty-tagged questions, 53% were easy, 34% medium and 13% hard.
Was Chemical Coordination and Integration asked in NEET 2026?
Yes. It had 1 question in NEET 2026 and 3 questions in Re-NEET 2026.