Sample exam questions - homeostasis and response - AQAPractical questions

You will complete 21 required practical activities if you are studying GCSE combined science: Trilogy. You could be asked questions about the apparatus, methods, safety precautions, results, analysis and evaluation of these experiments.

There will be a number of different types of practical based questions. Some will be on the set required practicals, some will cover the working scientifically terms and some will be on other science practicals which you might have done in class. Use all the information given in the question particularly any diagrams to help you understand what the question is about.

In this Homeostasis and response section there are two required practical activities:

1. Required Practical Activity 7: Plan and carry out an investigation into the effect of a factor on human reaction time.
2. Required practical activity 8 (biology only): Investigate the effect of light or gravity on the growth of newly germinated seedlings.

This page contains AQA material which is reproduced by permission of AQA.

Sample question 1

Two students investigated reflex action times.

This is the method used.

• Student A sits with his elbow resting on the edge of a table.
• Student B holds a ruler with the bottom of the ruler level with the thumb of Student A.
• Student B drops the ruler.
• Student A catches the ruler and records the distance.
• Steps 1 to 4 are then repeated.

The same method was also used with Student A dropping the ruler and Student B catching the ruler.

The table shows the students' results.

Sample question 2 - Foundation

Sample question 3 – Foundation