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CXC · CSEC · Human and Social Biology

Disease and Immunity
Practice Questions

112 CXC CSEC Human and Social Biology questions on Disease and Immunity, 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 Disease and Immunity.

Try 2 sample questions on Disease and Immunity

Question 1 · 1 mark · Difficulty 1/3

What is a communicable (infectious) disease?

  1. A disease caused by old age
  2. A disease that can be passed from one person to another, caused by pathogens
  3. A genetic condition
  4. A nutritional deficiency
Show answer & explanation
✓ Answer: B — A disease that can be passed from one person to another, caused by pathogens
Communicable diseases are caused by pathogens (bacteria, viruses, fungi, protists) and can be transmitted between people through direct contact, droplets, vectors, water, or food.
Question 2 · 1 mark · Difficulty 1/3

What is a vector in disease transmission?

  1. A type of medicine
  2. An organism that carries and transmits a pathogen without being affected by it
  3. A type of vaccine
  4. A symptom of disease
Show answer & explanation
✓ Answer: B — An organism that carries and transmits a pathogen without being affected by it
A vector is an organism (often an insect) that carries a pathogen from one host to another. Example: the Aedes aegypti mosquito transmits dengue, Zika, and chikungunya.
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20 questions · 25 min · free

CXC CSEC Human and Social Biology: Disease and Immunity FAQ

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 Disease and Immunity 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 Disease and Immunity 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 Disease and Immunity typically tested on CXC CSEC Human and Social Biology papers?
Disease and Immunity 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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