Qualification > Revison Notes
edexcel AS biology experiments
T.Q:
--- Quote from: ksitna on May 06, 2010, 08:07:00 pm ---hey thx guys
By the way do you have the experiment to investigate plant mineral deficiencies?
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check this https://studentforums.biz/index.php/topic,7364.0.html
Kim:
--- Quote from: moon on February 22, 2010, 12:41:24 pm ---please I need these experiment for edexcel A2 Biology
1. Describe how to carry out a study on the ecology of a habitat to produce valid and reliable data(including the use of quadrats and transects to assess abundance and distribution of organisms and the measurement of abiotic factors, eg solar energy input, climate, topography, oxygen avaliability and edaphic factors.
2. Describe how to investigate the effects of temperature on the development of organisms( eg seedling growth rate, brine shrimp hatch rates)
3. Describe how DNA can be amplified using the polymerase chain reaction(PCR).
4. Describe how gel electrophoresis can be used to separate DNA fragments of different length.
5. Describe how to investigate the effect of different antibiotics on bacteria.
6. Describe how to investigate rate of respiration practically.
7. Describe how to investigate the effects of excercise on tidal volume and breathing rate using data from spirometer traces.
8. Describe how to investigate habituation to a stimulus.
Thanks a lot.
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hey i have answers to 3 4 and 5 if u still want them send me a message and ill send it
and for one its just that u need to know all the sampling techniques such as random and systematic then lincoln index and mrr method along wid transacts and quadrats and other
i have some notes on that as well those ill attach cause they are already scanned
and if u need the others just tell me i m doing edexcel as well and know wat a pain it is
Q80BOY:
the exam was pretty simple .. there was no need for all these experiments .. just some common sense :P
moon:
--- Quote from: kim on May 14, 2010, 04:22:43 pm ---hey i have answers to 3 4 and 5 if u still want them send me a message and ill send it
and for one its just that u need to know all the sampling techniques such as random and systematic then lincoln index and mrr method along wid transacts and quadrats and other
i have some notes on that as well those ill attach cause they are already scanned
and if u need the others just tell me i m doing edexcel as well and know wat a pain it is
--- End quote ---
please we need the rest of the experiments cuz these r very difficult. i searched a lot for these experiments but unfortunately i couldn't find them so please send them if u dnt mind..Thanx
sunstar:
--- Quote from: moon on May 14, 2010, 06:38:11 pm ---please we need the rest of the experiments cuz these r very difficult. i searched a lot for these experiments but unfortunately i couldn't find them so please send them if u dnt mind..Thanx
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yes plz Kim, I really need that too so plz post them asap.thank you
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