OCR GCSE Twenty First Century Science Suite - Biology B J257 · B3.3.2
Photosynthetic organisms as producers
- Code
- B3.3.2
- In
- B3.3 How are organisms in an ecosystem interdependent?
- Topic
- B3 Living together – food and ecosystems
- Course
- GCSE Twenty First Century Science Suite - Biology B J257
- Board
- OCR
Grade boundaries·OCR command words
Codes and titles are read by a script from OCR's published specification and have not been checked by a person. What each point covers is in the specification itself: OCR’s specification.
Points in B3.3 How are organisms in an ecosystem interdependent?
- B3.3.1 Synthesis and breakdown of biological molecules, with tests
- B3.3.2 Photosynthetic organisms as producers
- B3.3.3 Dissolved food molecules transported into organisms
- B3.3.4 Levels of organisation in an ecosystem
- B3.3.5 Interdependence and competition
- B3.3.6 Trophic levels
- B3.3.7 Pyramids of biomass and biomass loss
- B3.3.8 Efficiency of biomass transfer
- B3.3.9 Cycling of substances in ecosystems
- B3.3.10 Importance of the carbon and water cycles
- B3.3.11 Microorganisms in nutrient cycling
- B3.3.12 Percentage of mass in cycling
- B3.3.13 Factors affecting decomposition
- B3.3.14 Rate of decay calculations