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Edexcel · GCSE · Biology

Required practical skills and experimental design across topics
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20 Edexcel GCSE Biology questions on Required practical skills and experimental design across topics, each with instant feedback and a full examiner-style mark scheme.

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Try 2 sample questions on Required practical skills and experimental design across topics

Question 1 · 1 mark · Difficulty 1/3

A student investigates osmosis by placing potato cylinders in sucrose solutions of different concentrations. Which measurement should be taken to quantify the change in the potato cylinders?

  1. The volume of sucrose solution remaining after the experiment
  2. The mass of the potato cylinders before and after immersion
  3. The colour change of the potato cylinders
  4. The temperature of the sucrose solution at the end
Show answer & explanation
✓ Answer: B — The mass of the potato cylinders before and after immersion
Measuring mass before and after immersion allows the percentage change in mass to be calculated, which quantifies water movement by osmosis. This is the standard method used in the Edexcel 1BI0 required practical for osmosis. Colour change is not a reliable or quantifiable measure of osmosis. Volume of remaining solution does not directly measure water movement into or out of the potato. Temperature is irrelevant unless being investigated as an independent variable.
Question 2 · 1 mark · Difficulty 2/3

A student investigates the effect of light intensity on the rate of photosynthesis using pondweed. Which variable should be kept constant to make the investigation a fair test?

  1. The colour of light used in each repeat
  2. The temperature of the water surrounding the pondweed
  3. The number of bubbles counted per minute
  4. The distance of the lamp from the pondweed
Show answer & explanation
✓ Answer: B — The temperature of the water surrounding the pondweed
Temperature must be kept constant because it is a confounding variable — it affects enzyme activity and therefore the rate of photosynthesis independently of light intensity. Distance is the independent variable being changed, so it cannot be a control variable. Bubble count is the dependent variable being measured. Colour of light would only be relevant if wavelength were the independent variable.
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Edexcel GCSE Biology: Required practical skills and experimental design across topics FAQ

How many Edexcel GCSE Biology questions on Required practical skills and experimental design across topics are there on Kramizo?
Kramizo currently has 20 exam-board-aligned practice questions on Required practical skills and experimental design across topics for Edexcel GCSE 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 Edexcel 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 Edexcel GCSE 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 Required practical skills and experimental design across topics practice with other Biology topics or even switch to a totally different Edexcel 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 Required practical skills and experimental design across topics questions aligned to the official Edexcel GCSE Biology syllabus?
Every question is written against the published Edexcel GCSE Biology specification, including the exact command words (state, describe, explain, calculate, evaluate, etc.), mark allocations, and difficulty tier you'd see on a real Edexcel 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 Edexcel.
How is Required practical skills and experimental design across topics typically tested on Edexcel GCSE Biology papers?
Required practical skills and experimental design across topics appears across multiple question types on real Edexcel GCSE 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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