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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. [3] medium thorough-understanding
When you accidentally step on a nail, you not only pull your foot back instantly but also feel sharp pain a moment later and remember the incident for days. Which parts of the nervous system are responsible for each of these three responses — the instant withdrawal, the sensation of pain, and the memory — and where are these parts located?
Generated by claude-sonnet-4-6 · 2026-06-26 01:01 · grounding rag
Model Answer

Instant withdrawal — controlled by the spinal cord (reflex arc). The reflex arc is formed in the spinal cord itself; it connects sensory and motor nerves without waiting for the brain, enabling a fast response.

Sensation of pain — felt by the fore-brain (cerebrum), located in the skull. The same nerve impulse that triggered the reflex also travels up to the fore-brain, where sensory areas interpret it as sharp pain.

Memory of the incident — also the fore-brain, which has association areas that store and process information, allowing the event to be remembered for days.

Source: Chapter 6, Sections 6.1.1 and 6.1.2

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Explanation

Examiners look for three distinct parts named correctly with their locations and functions:

A common mistake is saying "brain" for all three — be specific about the fore-brain for sensation and memory. Also note: the spinal cord is protected by the vertebral column, brain by the bony skull — useful extra detail if space permits.

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