9.2.6Exam Guidance and Skills
Questions with Specific Instructions — AQA A Level Biology 7402 Revision Notes & Topical Questions
5 min read 9 parts Lesson 12 of 13 1 quiz
9.2.6 Questions with Specific Instructions — AQA A Level Biology 7402 notes: Follow instructions that restrict how an answer must be given, such as use of data, number of points, drawing or extended-response levels.Some questions add an instruction beyond the command word, such a…
- Exam-style question 1
- Exam-style question 2
- Level of response
- Standard form
- Significant figures
- Extended response
Section 1 of 9Why instructions matter
Some questions add an instruction beyond the command word, such as "use the information in the table", "give your answer to two significant figures", "name one" or "in your answer, refer to named structures".
Section 2 of 9Common instructions and what to do
| Instruction | What it requires |
|---|---|
| Use the information in the figure / table | Quote values or refer to the pattern in the data in the answer |
| Give two / name one | Give exactly that number; extra answers may be ignored or may cancel |
| Show your working | Write each step of a calculation; marks are given for the method |
| Give your answer in standard form / to 2 s.f. | Use the required format for the final answer |
| Complete the table / label the diagram | Fill every box; use the terms shown on the specification |
| Draw a graph / sketch | Follow the scale, labels and type of graph requested |
| In your answer, you should... | The mark scheme includes a mark for this requirement, for example a logical sequence |
Section 3 of 9Questions that ask you to use data
Section 4 of 9Lined space and mark allocation
The lines provided and the mark allocation are guides to the length of answer.
Section 5 of 9Worked example: a six-mark question and following the instruction on drawing and labelling
Suppose the question reads"Describe how a nerve impulse is passed from one neurone to another across a synapse. [6]" A top-level answer is a logical sequence.
- so sodium ions enter and the membrane depolarises.
- and includes both the start and the end of the process,
- which is what a levels mark scheme rewards.
Where you are asked to draw, use a sharp pencil, draw large, avoid shading, and make label lines touch the structure and not cross each other.
Section 6 of 9Exam-style questions
Use the information in the table to compare the number of stomata on the upper and lower surfaces of leaves in two species. Upper: species A 20, species B 100; lower: species A 280, species B 150 (per mm2). [3]3 marks
In both species there are more stomata on the lower surface than the upper (1). Species A has many more stomata on the lower surface (280 compared with 150) (1), whereas species B has stomata more evenly spread, with a ratio of 1.5 : 1 compared with 14 : 1 in species A (1).
A question says: 'Name one carbohydrate that is a storage polysaccharide in animals.' A student writes 'starch or glycogen'. Explain why this loses the mark. [1]1 mark
The instruction was to name one; giving two answers, one of which is wrong (starch is in plants), contradicts the correct answer. The answer should be glycogen only.
Section 7 of 9Key terms
| Term | Meaning |
|---|---|
| Level of response | Marking by overall quality rather than counting individual points |
| Standard form | Number written as a value between 1 and 10 times a power of ten |
| Significant figures | Digits that carry meaning in a number |
| Extended response | Longer answer worth several marks |
| Mark scheme | Document showing the points that earn marks |
| Terminology | Correct scientific words for ideas and structures |
Section 8 of 9Syllabus checklist
Questions worth 5 or 6 marks are often marked in levels.
- and organise the answer in a sensible order,
- such as the order in which events occur.
Section 9 of 9Exam technique
Marked practiceQuizzes for this lesson
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