Callose

Definition

A plant polysaccharide that may be deposited to strengthen a barrier against an invading pathogen.

Used by OCR

Specification B6.3g · Paper 2 (Foundation), Paper 4 (Higher)

Plants may also deposit callose, a polysaccharide, on the inside of a cell wall. This produces an extra barrier at the threatened point and can restrict an invading pathogen.
Revise: Physical plant defences

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GCSE Biology · key term

A plant polysaccharide that may be deposited to strengthen a barrier against an invading pathogen.

Used by OCR

Specification B6.3g · Paper 2 (Foundation), Paper 4 (Higher)

Plants may also deposit callose, a polysaccharide, on the inside of a cell wall. This produces an extra barrier at the threatened point and can restrict an invading pathogen.
Revise: Physical plant defences

Create a free account to read GCSE Biology revision notes for your exam board and track your progress.