Author Topic: edexcel AS biology experiments  (Read 17430 times)

nid404

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Re: edexcel AS biology experiments
« Reply #15 on: February 25, 2010, 06:28:08 am »
thank u guys!!

Offline Dr.Black Knight

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Re: edexcel AS biology experiments
« Reply #16 on: March 09, 2010, 05:43:54 am »
thanks

Offline Uchia

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Re: edexcel AS biology experiments
« Reply #17 on: April 06, 2010, 04:11:05 pm »
thanks to everyone

Offline XFlufferzX

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Re: edexcel AS biology experiments
« Reply #18 on: April 13, 2010, 01:42:44 pm »
 :D
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Offline ksitna

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Re: edexcel AS biology experiments
« Reply #19 on: May 06, 2010, 08:07:00 pm »
hey thx guys
By the way do you have the experiment to investigate plant mineral deficiencies?
take whatever you want and give nothing back :)

Offline T.Q

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Re: edexcel AS biology experiments
« Reply #20 on: May 08, 2010, 10:39:54 pm »
hey thx guys
By the way do you have the experiment to investigate plant mineral deficiencies?

check this https://studentforums.biz/index.php/topic,7364.0.html
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Offline Kim

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Re: edexcel AS biology experiments
« Reply #21 on: May 14, 2010, 04:22:43 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.

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

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Offline Q80BOY

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Re: edexcel AS biology experiments
« Reply #22 on: May 14, 2010, 04:27:29 pm »
the exam was pretty simple .. there was no need for all these experiments .. just some common sense :P
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Offline moon

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Re: edexcel AS biology experiments
« Reply #23 on: May 14, 2010, 06:38:11 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



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

Offline sunstar

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Re: edexcel AS biology experiments
« Reply #24 on: May 14, 2010, 06:46:17 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

yes plz Kim, I really need that too so plz post them asap.thank you

Offline anachronism

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Re: edexcel AS biology experiments
« Reply #25 on: May 14, 2010, 07:22:54 pm »
the exam was pretty simple .. there was no need for all these experiments .. just some common sense :P

Yea except that this exam has NEVER been tested before.  >:(

Offline Q80BOY

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Re: edexcel AS biology experiments
« Reply #26 on: May 14, 2010, 07:30:39 pm »
edexcel Biology Unit 3B alternative to practical? this session was the 3rd paper mate  :-\
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Offline Kim

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Re: edexcel AS biology experiments
« Reply #27 on: May 14, 2010, 08:13:13 pm »
i just realized u guys are doing unit 3b and u need theses experiments mostly for unit6
but u do need some
so i will post them up by tomorrow
cause i need to scan them
so ull see them here by tomorrow
After all is said and done, more is said than done.

By the time a man realizes that maybe his father was right, he usually has a son who thinks he’s wrong.

The early bird may get the worm, but the second mouse gets the cheese.

Offline sunstar

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Re: edexcel AS biology experiments
« Reply #28 on: May 14, 2010, 08:20:18 pm »
Thanks very much kim 4 ur help and I'll be waiting 4 ur experiments by 2morrow.

Offline Kim

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Re: edexcel AS biology experiments
« Reply #29 on: May 14, 2010, 08:22:27 pm »
Thanks very much kim 4 ur help and I'll be waiting 4 ur experiments by 2morrow.
sure no problem
After all is said and done, more is said than done.

By the time a man realizes that maybe his father was right, he usually has a son who thinks he’s wrong.

The early bird may get the worm, but the second mouse gets the cheese.