A Level AQA Biology Y1/Y2
Biology
All of A level Bio -
Sample Data
| Front | How do the Na-K pumps + K ion channels create + maintain the resting potential in a neurone's membrane? |
| Back | - Na+ K+ Pump + K+ channels actively transports 3 Na+ out and 2K+ in using ATP - membrane is more permeable to K+ and less permeable to Na+ - some K+ ions diffuse out through leakage K+ channels - diffusion slows as K+ ions repelled by positive charge outside axon - chemical and electrical gradients balanced - equilibrium established - no net movement of ions - 65mV |
| Tags | BT6 |
| Front | What are some factors that increase the risk of cardiovascular disease? |
| Back | high blood cholesterol and poor diet, cigarette smoking, high blood pressure |
| Tags | BT3 heart |
| ID (hidden) | c365ebe2904c433ab29a39f539206426-ao-6 |
| Header | Labelled diagram of the eye |
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| Tags | BT6 |