2023 source guide · Biology

NEET 2023 Biology Chemical Coordination and Integration Questions

Use this page to connect the official 2023 paper with current Biology practice. NeetVellum does not claim a chapter appeared in that paper until the official question and final key have been mapped.

Practice 100 verified questions →Check official NTA archive ↗

What to master

endocrine glands, hormones, feedback and common endocrine disorders.

Original practice preview

These are current-syllabus NeetVellum questions, shown separately from historical-paper provenance.

Example 1 · difficulty 1/5

Which description correctly locates the pituitary gland and states its physical connection with the brain?

A. It lies in the vertebral canal and is connected to the medulla by a nerve
B. It lies in the sella turcica and is attached to the hypothalamus by a stalk
C. It lies above the cerebrum and is attached to the pineal gland by a duct
D. It lies inside the thyroid gland and is connected to the forebrain by blood vessels only

Example 2 · difficulty 2/5

Which sequence correctly describes the origin and release of vasopressin?

A. Synthesised in pars distalis, carried through portal blood, released by the hypothalamus
B. Synthesised in pars intermedia, stored in the thyroid, released into renal tubules
C. Synthesised by hypothalamic neurons, transported along their axons, released from the posterior pituitary
D. Synthesised in the kidney, transported through a pituitary stalk, released from pars distalis

Example 3 · difficulty 1/5

An adult develops abnormal enlargement of body extremities because growth hormone secretion remains excessive. Which disorder best matches this condition?

A. Pituitary dwarfism
B. Diabetes insipidus
C. Gigantism
D. Acromegaly

The evidence-first practice loop

1. Verify provenanceOfficial paper and final key before accepting a PYQ label.
2. Attempt closed-bookExpose the concept or execution gap before rereading.
3. Repair and returnClassify the miss and re-practice after a delay.

Canonical chapter practice

Chemical Coordination and Integration →

Frequently asked questions

Are these official NEET 2023 Biology Chemical Coordination and Integration PYQs?

No. The previews are original NeetVellum practice questions. A historical item receives a PYQ label only after its official paper and authoritative final answer key are attached. Use the official archive for the source paper.

How should I use the NEET 2023 paper?

Solve the official paper under its original timing, verify against the final key, classify every miss, and then use the linked current-syllabus practice bank to repair the exposed concept.