2024 source guide · Biology

NEET 2024 Biology Questions

Use this page to connect the official 2024 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 3486 verified questions →Check official NTA archive ↗

Original practice preview

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

Example 1 · difficulty 3/5

Bony fishes (class Osteichthyes) possess an air bladder, a structure absent in cartilaginous fishes (class Chondrichthyes). What is the primary function of the air bladder in bony fishes?

A. Respiration
B. Buoyancy regulation
C. Osmoregulation
D. Sound production

Example 2 · difficulty 4/5

Regarding members of Phylum Echinodermata, which of the following statements is correct?

A. Adults are bilaterally symmetrical while the larvae are radially symmetrical
B. The water vascular system functions primarily in excretion
C. They possess an exoskeleton made of chitin
D. Larval stages are bilaterally symmetrical whereas adults exhibit pentamerous radial symmetry

Example 3 · difficulty 1/5

Alexander von Humboldt observed that, within a region, species richness increases with increasing explored area, but only up to a limit. Which equation correctly expresses this species-area relationship, where S is species richness, A is area, and C and Z are constants?

A. S = C + ZA
B. log A = log S + Z log C
C. log S = log C + Z log A
D. S = C − Z log A

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

The Living World →Biological Classification →Plant Kingdom →Animal Kingdom →Morphology of Flowering Plants →Anatomy of Flowering Plants →Structural Organisation in Animals →Cell: The Unit of Life →Biomolecules →Cell Cycle and Cell Division →Photosynthesis in Higher Plants →Respiration in Plants →Plant Growth and Development →Breathing and Exchange of Gases →Body Fluids and Circulation →Excretory Products and their Elimination →Locomotion and Movement →Neural Control and Coordination →Chemical Coordination and Integration →Sexual Reproduction in Flowering Plants →Human Reproduction →Reproductive Health →Principles of Inheritance and Variation →Molecular Basis of Inheritance →Evolution →Human Health and Disease →Microbes in Human Welfare →Biotechnology: Principles and Processes →Biotechnology and its Applications →Organisms and Populations →Ecosystem →Biodiversity and Conservation →

Frequently asked questions

Are these official NEET 2024 Biology 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 2024 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.