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Transport Systems
Practice Questions

120 CXC CSEC Biology questions on Transport Systems, 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 Transport Systems.

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Question 1 · 1 mark · Difficulty 1/3

Which type of blood vessel has walls that are only one cell thick?

  1. Arteries
  2. Veins
  3. Capillaries
  4. Arterioles
Show answer & explanation
✓ Answer: CCapillaries
Award 1 mark for identifying capillaries as having walls one cell (endothelium) thick. A is incorrect — arteries have thick muscular walls with three layers. B is incorrect — veins have thinner walls than arteries but still have multiple layers. D is incorrect — arterioles have muscular walls, though thinner than arteries.
Question 2 · 1 mark · Difficulty 1/3

Which structural feature is present in veins but absent in arteries?

  1. Elastic fibres
  2. Smooth muscle
  3. Valves
  4. Endothelium
Show answer & explanation
✓ Answer: CValves
Award 1 mark for identifying valves as unique to veins. A is incorrect — both arteries and veins contain elastic fibres, though arteries have more. B is incorrect — both vessel types have smooth muscle in their walls. D is incorrect — both arteries and veins have an endothelium lining.
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CXC CSEC Biology: Transport Systems FAQ

How many CXC CSEC Biology questions on Transport Systems are there on Kramizo?
Kramizo currently has 120 exam-board-aligned practice questions on Transport Systems for CXC CSEC 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 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 Transport Systems practice with other 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 Transport Systems questions aligned to the official CXC CSEC Biology syllabus?
Every question is written against the published CXC CSEC 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 Transport Systems typically tested on CXC CSEC Biology papers?
Transport Systems appears across multiple question types on real CXC CSEC 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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