Loading…
Loading…
GCSE Biology · key term
Leaf tissue with loosely arranged cells and air spaces that allow gases to diffuse through the leaf.
Used by AQA and Edexcel
Specification 4.2.3.1 · Paper 1
Revise: Plant TissuesBelow this is the spongy mesophyll. Its cells are more loosely arranged, leaving air spaces connected to the stomata. Carbon dioxide can diffuse through these spaces towards photosynthesising cells, while oxygen can diffuse out.
Specification 6.11B · Paper 2
A layer of loosely packed leaf cells with air spaces that allow gases to move through the leaf.
Revise: Leaf StructureThe spongy mesophyll has loosely arranged cells and connected air spaces. These let gases move between the stomata and photosynthesising cells. The leaf's thinness keeps this diffusion distance short.
Create a free account to read GCSE Biology revision notes for your exam board and track your progress.