Free-response questions
Free-response questions will appear throughout both exams papers (Breadth and Depth), and at both Foundation Tier and Higher Tier.
These questions provide answer lines for you to write your answer, and may sometimes also provide a blank space for you to draw a diagram or show your working out.
The number of answer lines and the number of marks for the question are guides to the amount of detail to include in your answer. A question worth 1 mark with only one answer line probably only requires a one-sentence answer, or perhaps just a single word or phrase. For questions with more marks and more answer lines you will have to go into more detail or give specific data points, eg:
- the number of deaths from cardiovascular disease increased (1 mark)
- the number of deaths from cardiovascular disease increased by 50% (2 marks)
Free-response questions often start with a command word such as 'describe' or 'explain'. It's important to understand the different types of answers required by 'describe' and 'explain'. As a rule of thumb:
- describe what happens, when and where
- explain how and why it happens ("it happens because...")
Other command words you might see include:
- 'write down' (give a short answer, without explaining it)
- 'suggest' (use your scientific knowledge and understanding to give a sensible answer in an unfamiliar context)
- 'compare' (write about the similarities and differences between two things)
- 'discuss' (write about the issues related to a topic, and talk about arguments for and against).
These questions have been written by Bitesize consultants as suggestions to the types of questions that may appear in an exam paper.
Sample question 1 - Foundation
Question
Mosquitos can pass malarial parasites from one human to another. What name is given to an organism that transmits a disease? [1 mark]
Vector.
Sample question 2 - Foundation
Question
Give an example of a fungal disease of humans and of plants. [2 marks]
athlete's foot in humans (1 mark) and ash dieback in plants (1 mark)
accept other correct answers
Sample question 3 - Foundation
Question
Describe the difference between antiseptics and antibiotics. [1 mark]
Antibiotics are medicines that kill bacterial infections inside living organisms. Antiseptics kill pathogens when applied to external surfaces.
Sample question 4 - Higher
Question
Cancer is a non-communicable disease. Explain how smoking can affect the development of cancer. Define risk factors in your answer. [4 marks]
Answer four from:
- Risk factors are things that increase a person's chance of developing a disease (1 mark).
- They can be part of a person's lifestyle (1 mark).
- They can be substances in a person's body or their environment (1 mark).
- Smoking is a risk factor for lung cancer (1 mark).
- Tar in cigarettes is a carcinogen (1 mark).
Sample question 6 - Higher
Question
The tobacco mosaic virus infects tobacco plants and causes leaves to discolour. Explain the effects of this on the plant. [4 marks]
Answer four from:
- the leaves turn yellow or white (1 mark)
- they also become crinkled or curled (1 mark)
- this reduces photosynthesis in chloroplasts (1 mark)
- which means plants have less glucose for respiration (1 mark)
- so do not grow as well (1 mark)