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Science (086) — AI-generated practice question

AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.

Q1. [1] straightforward exam-ready
Which of the following statements correctly identifies where reflex arcs are primarily located and why? (A) In the fore-brain, because conscious processing speeds up the reflex (B) In the spinal cord, because this allows a rapid response without waiting for signals to reach the brain (C) In the peripheral nervous system, because reflexes bypass the central nervous system entirely (D) In the cerebellum, because it coordinates all involuntary muscular responses
  1. A Fore-brain
  2. B Medulla oblongata
  3. C Spinal cord
  4. D Cerebellum
Generated by claude-sonnet-4-6 · 2026-06-26 01:00 · grounding rag
Model Answer

(C) In the spinal cord, because reflex arcs are formed in the spinal cord itself, allowing a rapid response without waiting for signals to travel up to the brain.

Explanation

The passage explicitly states: "Reflex arcs are formed in this spinal cord itself, although the information input also goes on to reach the brain." The key reason is speed — routing through the brain would take too long. Option C in the given answer choices is Spinal cord, which matches. Examiners expect you to link the location (spinal cord) to the reason (faster response).

Previous-year CBSE Grade 10 board exam questions, organised by subject and chapter, each with a model answer — free to read and print.