SB8 Exchange and transport in animals personal learning checklist
GCSE Edexcel Separate Sciences · Biology Paper 2
Name ____________________ Class __________ Date __________
Tick one box per statement. Red: need help. Amber: partly confident. Green: can do independently.
| I can | Red | Amber | Green |
|---|---|---|---|
| Exchange surfaces and scale | |||
| Explain why large multicellular organisms need exchange surfaces and transport systems. | |||
| Calculate surface area-to-volume ratios and explain how size changes exchange demands. | |||
| Explain alveolar adaptations and oxygen and carbon dioxide diffusion between air and blood. | |||
| Explain how ventilation and blood flow maintain exchange gradients, distinguishing breathing from respiration. | |||
| Blood and vessels | |||
| Link plasma, red blood cell and haemoglobin properties to substance transport. | |||
| Explain white blood cell defence and platelet roles in clotting. | |||
| Compare artery, capillary and vein structures with their pressure, flow and exchange functions. | |||
| Explain why artery and vein names describe direction rather than oxygen content. | |||
| Heart and circulation | |||
| Trace blood through double circulation, naming heart chambers and major vessels. | |||
| Explain heart valves, the septum and differences in ventricular wall thickness. | |||
| Explain coronary blood supply and the effect of an arterial blockage on heart muscle. | |||
| Calculate and rearrange cardiac output, stroke volume and heart rate, converting units where needed. | |||
| Measure pulse and interpret exercise, recovery and longer-term training effects. | |||
| Respiration | |||
| Describe aerobic respiration equations, continuous energy transfer and uses in living cells. | |||
| Compare aerobic respiration with anaerobic respiration in muscle and yeast. | |||
| Explain post-exercise recovery and oxygen debt, including lactate transport and breakdown. | |||
| Respiration investigations | |||
| Explain respirometer measurements and the role of carbon dioxide absorbent. | |||
| Plan fair respiration comparisons using temperature equilibration, controls, repeats and organism welfare. | |||
| Calculate gas uptake and mass-normalised respiration rates from capillary measurements. | |||
| Compare oxygen uptake with yeast carbon dioxide measurements and interpret experimental limitations. | |||
| Diffusion and Fick's law | |||
| Explain diffusion-rate changes using surface area, concentration gradient and membrane thickness. | |||
| Use Fick's proportionality to calculate relative rates and explain when a constant is needed. | |||
Next revision priority: __________________________________________________