Types of Questions (AQA A-Level Biology): Revision Notes
Types of Questions
Understanding the different question formats you'll encounter in your A-Level exams is essential for exam success. Each question type requires specific approaches and techniques to maximise your marks.
Command words in exams
Examiners use specific command words to indicate exactly what they want from your answer. Learning these terms helps you provide appropriate responses and avoid losing marks unnecessarily.
- Describe means provide an account or explanation of something. You should give factual information about what you have learned and remembered. This might involve summarising trends from graphs or tables of data.
- Explain requires you to give reasons why something happens. Rather than just describing, you need to use connecting words like "because" or "therefore" to show cause and effect relationships.
- Suggest appears when you're given an unfamiliar example or situation. You must apply your A-Level understanding to work out answers that may not be directly covered in your notes. This tests whether you truly understand concepts rather than just memorising facts.
- Evaluate asks you to weigh up evidence and present balanced arguments. Consider different viewpoints or evidence that supports and opposes a particular statement or conclusion. You may need to make judgements about experimental procedures or scientific claims.
- Give simply means recall information or extract answers from provided data. No detailed explanation is required.
- Sketch means draw approximately. For graphs, you need to show the correct trend and general shape rather than precise mathematical accuracy.
Structured questions
These questions form a major part of your exam papers and come in two main formats.
Pay Attention to Mark Allocation
The number of marks allocated tells you how much detail is required. One mark usually means one clear point, while higher mark questions need multiple points or more detailed explanations.
Short structured questions
These typically award one or two marks and often require brief answers. Sometimes only a single word or simple calculation is needed. These questions test your recall of key facts and basic understanding.
Longer structured questions
These usually score three to six marks and require more detailed responses. You may be asked to use information from tables, graphs or diagrams in your answer.
When answering longer structured questions, pay attention to command words that appear together, such as "describe and explain". Make sure you address both parts - describe what happens, then explain why it happens.
Understanding Mark Schemes
Mark schemes for these questions often have clear marking points. For example, a question about breathing mechanisms might have separate marks for describing the physical changes and explaining how these changes create pressure differences.
Comprehension questions
These questions provide you with a short passage to read, followed by related questions. The key technique is to read the passage carefully first, then examine all questions before starting to answer.
Strategic Approach to Comprehension
The questions will often reference specific lines in the passage, helping you locate relevant information. These questions test whether you can apply your existing biological knowledge to new contexts presented in the passage.
Read the passage again after reviewing all questions, then answer each question systematically. You'll typically need to combine information from the passage with your own knowledge.
Extended prose answers
These questions typically carry five or more marks and require well-organised, detailed responses. The key to success is structuring your answer clearly and including sufficient scientific detail.
Structure Your Extended Prose Answers
For comparison questions, such as active versus passive immunity, make sure you actually compare rather than just describing each separately. Use phrases like "whereas" or "in contrast" to highlight differences.
Mark schemes often contain more marking points than the total marks available. This means you can achieve full marks without mentioning every possible point, but you need to include enough relevant detail.
When describing biological processes, ensure you present information in the correct sequence and use appropriate scientific terminology throughout your answer.
Synoptic questions
These questions require you to draw knowledge from different areas of your biology course. For example, you might need to link protein structure concepts when explaining enzyme specificity, or connect different biological systems when discussing antibody function.
Making Connections Across Topics
Synoptic questions test the depth of your understanding across the entire syllabus and your ability to make connections between different topics. Think about how different biological processes and concepts relate to each other.
Data questions and graph analysis
Describing graphs
When describing graph trends, focus on the overall pattern rather than individual data points. Avoid simply stating "when x goes up, so does y" as this is too simplistic for A-Level.
Look for changes in gradient throughout the graph. Your description might be: "As x increases from... to..., y increases slowly, but after x reaches the value of..., y increases much more steeply."
Correlation vs Causation
Remember that correlation does not indicate causation. Examiners may show you graphs with correlations and ask you to suggest reasons for trends, but be careful not to assume one factor directly causes another without additional evidence.
For scatter graphs, describe the general pattern of data distribution and note whether points cluster around a trend line or show wide variation.
Key Points to Remember:
- Master command words - they tell you exactly what examiners want
- Structure longer answers clearly with logical sequences and scientific terminology
- Read comprehension passages and all questions before starting to answer
- In extended prose, compare rather than just describe separately when asked
- Synoptic questions link different biology topics together - make those connections clear
- Always consider mark allocation when planning your response depth
- Distinguish between correlation and causation in data analysis