OCR A-level Biology B (Advancing Biology) H422 · 2.1.1(l)
Movement of molecules across membranes
- Code
- 2.1.1(l)
- In
- 2.1.1 Cells and microscopy
- Topic
- 2 Cells, chemicals for life, transport and gas exchange
- Course
- A-level Biology B (Advancing Biology) H422
- 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 2.1.1 Cells and microscopy
- 2.1.1(a) Microscopy, cell theory and blood smears
- 2.1.1(b) Differential staining
- 2.1.1(c) Animal cells seen in blood smears
- 2.1.1(d) Cell dimensions and the magnification formula
- 2.1.1(e) Practical: haemocytometer cell counts
- 2.1.1(f) Flow cytometry in blood analysis
- 2.1.1(g) Ultrastructure of an animal cell
- 2.1.1(h) Plant and prokaryotic cell ultrastructure compared
- 2.1.1(i) Practical: measuring cells with a graticule
- 2.1.1(j) Lipids in the plasma membrane
- 2.1.1(k) The fluid mosaic model
- 2.1.1(l) Movement of molecules across membranes
- 2.1.1(m) Practical: diffusion rates in cells
- 2.1.1(n) Roles of membranes
- 2.1.1(o) Organelles in protein production and secretion