acellular structure
What acellular structure means in Biology A-Level, as defined for AQA.
Definition of acellular structure
Check what you remember
Read the wording for your board, then hide it and explain acellular structure in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Lacking a cell-surface membrane, cytoplasm and organelles, so a virus particle is not a cell.
Topics that use acellular structure
- Structure of prokaryotic cells and of viruses (AQA A-Level)
Related terms
- attachment proteins and host receptors
- capsule
- no membrane-bound organelles
- plasmids
- 70S ribosomes
- capsid and genetic material
- circular DNA and nucleoid
- flagellum
Using acellular structure 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