Has every flashcard for Year 12 and 13 A-level edexcel biology except Climate change and Classifications.
| Front | What are the disadvantages to Amniocentesis? |
| Back | It has a 1% risk of miscarriageResults aren't available until 2-3 weeeks after the sample is taken, However a rapid test (which only looks for most common disorders) can be performed, the results of this are usually available in 3-4 days |
| Front | What is each reaction in respiration controlled by? |
| Back | Each reaction is controlled and catalysed by a specific intracellular enzyme. Enzyme with slowest activity is rate limitingCoenzymes are used in respiration |
| Front | Why are Muscle Fibres multinucleate (contain many nuceli)? |
| Back | Because they have lots of mitchondria to provide the ATP needed for muscle contraction |