Questions
15
across 8 papers
Share of subject
3.9%
of 388 Zoology Qs
Weightage rank
#12
of 16 chapters
Difficulty
8 easy · 5 medium · 2 hard
Chemical Coordination and Integration contributed 15 of the 388 NEET Zoology questions between 2020 and 2026 (Re-NEET 2026 included). That is 3.9% of the subject and makes it the #12 chapter out of 16 by weightage — roughly 1.9 questions per paper, peaking at 4 in NEET 2025.
Of the 15 questions tagged for difficulty, 53% were easy, 34% medium and 13% hard — a chapter where NCERT-level preparation pays off directly.
It has been asked more often lately: 2.7 questions per paper across NEET 2025, NEET 2026 and Re-NEET 2026, against 1.3 in 2020–2022.
The single most-tested topic is Thyroid (Hormones and Function) — 2 questions across 2 papers.
13 topics tagged under Chemical Coordination and Integration. Numbers show how many questions each topic had in each paper; E / M / H are the easy, medium and hard counts.
| Topic | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | Re | Total | E | M | H |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pituitary Gland (Anterior and Posterior Puituitary) | – | – | – | – | – | – | – | 2 | 2 | – | 2 | – |
| Thyroid (Hormones and Function) | – | – | – | 1 | 1 | – | – | – | 2 | – | 1 | 1 |
| Adrenal Gland (Adrenal Cortex and its Hormones) | 1 | – | – | – | – | – | – | – | 1 | 1 | – | – |
| Adrenal Gland (Adrenal Medulla and its Hormones) | – | – | – | – | – | 1 | – | – | 1 | – | – | 1 |
| Classification of Hormone (Protein Hormone and Steroid Hormone) | – | – | – | – | 1 | – | – | – | 1 | 1 | – | – |
| Hormonal Disorders (Examples) | 1 | – | – | – | – | – | – | – | 1 | – | 1 | – |
| Hormones (Current and Scientific Definition of Hormones) | – | – | 1 | – | – | – | – | – | 1 | 1 | – | – |
| Hormones of Gastrointestinal Tract (GI Tract Hormone and its Function) | – | – | – | – | – | 1 | – | – | 1 | 1 | – | – |
| Human Endocrine System (Location of Endocrine Glands and Organs in Human Bo…) | – | – | – | – | – | – | 1 | – | 1 | 1 | – | – |
| Hypothalamus (Location of Hypothalamus, Hypothalamic Hormone) | – | – | – | – | – | 1 | – | – | 1 | 1 | – | – |
| Ovary (Hormones and Function) | – | – | – | – | – | 1 | – | – | 1 | 1 | – | – |
| Pancreas (Insulin and Glucagon) | – | – | – | – | – | – | – | 1 | 1 | 1 | – | – |
| Parathyroid (Hormones and Function) | – | – | 1 | – | – | – | – | – | 1 | – | 1 | – |
No topic has appeared in three or more different papers.
In the NEET papers from 2020 to 2026 (including Re-NEET 2026), 15 Zoology questions came from Chemical Coordination and Integration — 3.9% of the subject, or about 1.9 per paper.
By past weightage it ranks #12 of 16 Zoology chapters, so it is a lower-weightage Zoology chapter, with 15 questions over 2020–2026.
The most-tested topics are Thyroid (Hormones and Function) (2), Pituitary Gland (Anterior and Posterior Puituitary) (2) and Adrenal Gland (Adrenal Cortex and its Hormones) (1). The topic table above lists every topic with its count in each paper.
Of the 15 difficulty-tagged questions, 53% were easy, 34% medium and 13% hard.
Pituitary Gland (Anterior and Posterior Puituitary), Human Endocrine System (Location of Endocrine Glands and Organs in Human Bo…) and Pancreas (Insulin and Glucagon) were asked in the 2026 papers.
Edurack has chapter-wise NEET previous-year questions for Chemical Coordination and Integration. Use the practice button on this page to open the set, attempt questions and check your answers.
Counts come from Edurack's tagged set of NEET papers 2020–2026 (including Re-NEET 2026), mapped to NCERT chapters and topics. Use them as a trend guide — past frequency doesn't guarantee what a future paper will ask.