Which sequence describes how a fungus decomposes a dead leaf?
Enzymes are secreted, break down large molecules outside the cells, and small soluble molecules diffuse into the fungus
Large molecules diffuse into the fungus, are broken down by enzymes inside its cells, and the products are released
Enzymes are secreted, break down large molecules outside the cells, and small soluble molecules enter the fungus by osmosis
Enzymes are secreted, join small molecules into large insoluble molecules, and these are absorbed by active transport
61 exam-style questions on AQA GCSE Biology 7.4 Trophic levels in an ecosystem, covering 7.4.1 Trophic levels, 7.4.2 Pyramids of biomass, and 7.4.3 Transfer of biomass. Each one has a worked solution and a mark scheme showing where the marks go.