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CXC · CSEC · Human and Social Biology

Reflex action and reflex arcs
Practice Questions

20 CXC CSEC Human and Social Biology questions on Reflex action and reflex arcs, each with instant feedback and a full examiner-style mark scheme.

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✨ Revision guide includes key terms, worked examples and exam technique for Reflex action and reflex arcs.

Try 2 sample questions on Reflex action and reflex arcs

Question 1 · 1 mark · Difficulty 1/3

Which component of a reflex arc carries impulses FROM the receptor TO the spinal cord?

  1. A. Motor neurone
  2. B. Relay neurone
  3. C. Sensory neurone
  4. D. Effector neurone
Show answer & explanation
✓ Answer: CC. Sensory neurone
The sensory neurone transmits nerve impulses from the receptor toward the central nervous system (spinal cord or brain). The motor neurone carries impulses away from the CNS to the effector. A relay neurone connects the sensory and motor neurones within the spinal cord.
Question 2 · 1 mark · Difficulty 1/3

Which of the following is the correct pathway for a nerve impulse in a simple spinal reflex arc?

  1. A. Effector → Motor neurone → Relay neurone → Sensory neurone → Receptor
  2. B. Receptor → Sensory neurone → Relay neurone → Motor neurone → Effector
  3. C. Receptor → Motor neurone → Relay neurone → Sensory neurone → Effector
  4. D. Receptor → Relay neurone → Sensory neurone → Motor neurone → Effector
Show answer & explanation
✓ Answer: BB. Receptor → Sensory neurone → Relay neurone → Motor neurone → Effector
The correct reflex arc pathway goes from the receptor through the sensory neurone to the relay neurone in the spinal cord, then via the motor neurone to the effector. Options A is the reverse pathway. Options C and D incorrectly place the motor and sensory neurones in the wrong positions.
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20 questions · 25 min · free

CXC CSEC Human and Social Biology: Reflex action and reflex arcs FAQ

How many CXC CSEC Human and Social Biology questions on Reflex action and reflex arcs are there on Kramizo?
Kramizo currently has 20 exam-board-aligned practice questions on Reflex action and reflex arcs for CXC CSEC Human and Social Biology, with new questions added every week. Each question gives you instant feedback and a full examiner-style mark scheme that tells you exactly what would earn marks on a real CXC paper. The questions span the full difficulty range — from straightforward recall (level 1) right up to multi-step reasoning and evaluation (level 3) — so the bank works for first-pass revision and final exam-week stress testing alike.
Is Kramizo free for CXC CSEC students preparing for Human and Social Biology?
Yes — completely free. Every student gets 45 questions a day on the free plan, with no card required and no trial countdown. That free quota works across every subject and every topic in our bank, so you can mix Reflex action and reflex arcs practice with other Human and Social Biology topics or even switch to a totally different CXC subject without paying anything. Kramizo's optional Pro plan removes the daily cap and adds detailed progress analytics, but the free tier is the real product — used by thousands of GCSE, IGCSE and CSEC students.
Are the Reflex action and reflex arcs questions aligned to the official CXC CSEC Human and Social Biology syllabus?
Every question is written against the published CXC CSEC Human and Social Biology specification, including the exact command words (state, describe, explain, calculate, evaluate, etc.), mark allocations, and difficulty tier you'd see on a real CXC paper. Explanations are written in the style of official examiner mark schemes — they tell you what is being awarded marks and why distractors are wrong, not just whether you got it right. The bank is continually refined to match the latest syllabus updates from CXC.
How is Reflex action and reflex arcs typically tested on CXC CSEC Human and Social Biology papers?
Reflex action and reflex arcs appears across multiple question types on real CXC CSEC Human and Social Biology papers — most commonly as multiple-choice questions in the objective section, structured short-answer questions in the main paper, and occasionally as part of an extended response. Kramizo's practice bank reflects that mix: 4-option MCQs, true/false statements, fill-in-the-blank key terms, multi-select questions, and ordering questions. Working through the bank gives you exposure to every question style examiners actually use.

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