Tropisms
What Tropisms means in Biology GCSE, as defined for AQA.
Definitions of Tropisms
Exam boards and our study guides word this term in slightly different ways. Learn the version your board uses.
Check what you remember
Read the wording for your board, then hide it and explain Tropisms in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Unequal auxin distribution causes unequal growth rates, which produce the bending seen in tropisms.
Directional growth responses to a stimulus such as light or gravity.
Topics that use Tropisms
- Control and coordination (AQA GCSE)
Related terms
- Auxin and cell elongation
- Auxin mechanisms
- Biological drawing skills
- dependent variable
- Gravitropism
- independent variable
- Phototropism
- Plant coordination
Using Tropisms in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
Practise Biology questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
A week of Premium from your first lesson · Then the free plan continues · No card, no charge