IGCSE/GCSE/O & A Level/IB/University Student Forum
Qualification => GCE AS & A2 Level => Topic started by: Most UniQue™ on May 04, 2013, 01:54:27 pm
-
Any discussion regarding Edexcel exams shall be done here.
Examination timetable can be download/viewed online from here (http://www.edexcel.com/iwantto/Documents/5882-June-2013-GCE-imetable-FINAL-3-new.pdf)
CIE discussion takes place here (https://studentforums.biz/index.php?topic=17304.0)
Good Luck To All Students Appearing for the exam!
Note: Do not reveal the content of the paper until 24 hours or else you'll be banned.
-
please ANYONE please
just 2 days are left for Biology Alternative to Practical
can all of you please share some resources that you have for this unit 3 biology edexcel
especially for Q1 last question and entire Q2
-
For question 1, Study observing mitosis. (study all practicals, but this one a little bit more)
For question 2, solve past papers, read examiner reports. You should also know how to write a bibliography.
-
what is a stage micrometer and how does it make the results valid
-
Where does the discussion of biology Unit 6B takes place?? :-( i need help in biology unit 6B..i need someone to discuss.
-
You can discuss it here or you can start a Bio unit 6B discussion thread.
-
looking for a2 jan 2013 biology 6b paper. does anyone have a link to it?
-
looking for a2 jan 2013 biology 6b paper. does anyone have a link to it?
Papers and MS: https://studentforums.biz/index.php?topic=17153.0
Examiner reports: http://www.mediafire.com/?w95dnxo92ookc/
-
Can anyone make me understand DNA GEL ELECTROPHORESIS and Abundance of species..this two r the ones i don't understand.
-
Let me try
DNA Gel Electrophoresis is a huge topic
in this process actually what you are supposed to do is to try to get the DNA profile of the introns of the suspect, criminal or whoevers it is, this is a refrence profile that will be compared with the profile made by us only if it matches then the Suspect is said to be the criminal, that is done after you get your bands on the profile and then you compare the position of the bands.
this is not it, we can also use a gene probe to see the degree of hybridisation of DNA
as far as the process is concerned
you use restriction enzymes to cut the DNA at the specific base sequences, the DNA then goes through PCR
where the DNA is amplified(copied many times) going through a cycle of temperature changes
after this is done and remember this is done on the fragments of DNA.
NOW GEL ELECTROPHORESIS
it is a large tank with agarose gel and buffer solution in it, it has wells in one side and 2 electrodes are attatched to the tank, the nucleotides have been labelled with radioactive Nitrogen that will floresce under UV light or they are stained with ethidium bromide when there is a potential applied across the tank since phosphate group of nucleotide is negative it will move towards positive electrode or the anode another small dye is also put on the gel that is smaller then DNA fragments and when it reaches near to the cathode the electric supply is stopped -REMEMBER this fragments travel according to their size and charge
then comes Southern Blotting when you place nitrocellulose paper over the gel and wads of filter paper on top of it this will soak up all the gel and buffer solution leaving behind the fragments of DNA on the paper which can then be check for hybridisation with the gene probe if hybridisation between complementary base pair occurs at more than 11 sites then you confirm that you are sure of who the criminal is.
HOPE THAT EXPLAINS
now abundance of species is simply the number of species present in an ecosystem at any one time
just consider them as many different species
hope it is helpful for you, Pray for all of us
that our hardwork gets it reward ,INSHALLAH
there might be some mistakes you can look them up in books and correct them
-
Thanks a lot! :D In Sha Allah we will all do good..:)
-
Hi, I feel depressed with edexcel physics unit 3B which is the As...I am appearing exams after 2 days...what should I study??? Pls help me...
:-[ :'(
-
Does any one of you have exact timing schedule for the Edexcel examination in Saudi Arabia. Our school never gave it to us. If someone has it, can you please upload it here.
Thanks.
-
ASdude, have you got your statement of entry?
Timing in Kuwait is 11 am for morning session (reporting time 10:30am) and 3:30 pm for the afternoon session (reporting time 3:00 pm)
Don't know about KSA but probably the same.
http://www.edexcel.com/iwantto/Documents/5882-June-2013-GCE-imetable-FINAL-3-new.pdf
Hi, I feel depressed with edexcel physics unit 3B which is the As...I am appearing exams after 2 days...what should I study??? Pls help me...
:-[ :'(
I don't know anything about physics but solving papers and reading examiner reports helps.
You may also want to check this board for resources: https://studentforums.biz/index.php?board=95.0
-
Hi, I feel depressed with edexcel physics unit 3B which is the As...I am appearing exams after 2 days...what should I study??? Pls help me...
:-[ :'(
As Abod said, solve past papers as much as you can . It really helps.
Good luck
-
If yur taking bio then the exam is tommo and the starting time for the paper is 11:00 A.M. but you should be there by 10:45 A.M. ASdude
-
any ideas on whats "really" important ? :-\
There is no such thing as "this" is not important. If it's in your specification then it's important.
-
Any suggestions on chemistry unit 3b?????/
-
is there any thing for biology 6b practical, like a guide?
-
Papers and MS: https://studentforums.biz/index.php?topic=17153.0
Examiner reports: http://www.mediafire.com/?w95dnxo92ookc/
thanks. do you have link to a practical guide for paper 6b biology?
-
thanks. do you have link to a practical guide for paper 6b biology?
Something like this:
http://www.mediafire.com/?1q3e1ed4nnih573
-
Can any one please explain the plants transport system?? its very complicated and the only hard chapter ((this is A2 CIE biology))
-
Can any one please explain the plants transport system?? its very complicated and the only hard chapter ((this is A2 CIE biology))
This thread is for Edexcel exam discussions.
CIE Biology doubts here: https://studentforums.biz/index.php?topic=10524.0
CIE exam discussions here: https://studentforums.biz/index.php?topic=17304.0
Sorry I can't help you; I'm doing Edexcel A2 biology.
-
can anyone please explain hess,s law and chapter 10 from math c2 book?
-
Does anyone know a link for jan 2013 chemistry unit 6 please link me ??
:-\
-
Is there a higher possibility that Gel Electrophoresis/PCR, or Investigating Breathing will appear in tomorrow's Biology Unit 6B International paper?
-
Does anyone know a link for jan 2013 chemistry unit 6 please link me ??
:-\
https://studentforums.biz/index.php?topic=17153.0
Is there a higher possibility that Gel Electrophoresis/PCR, or Investigating Breathing will appear in tomorrow's Biology Unit 6B International paper?
Possible. I hope we get an easy one. How's your preparation going?
-
Does anyone have the physics unit 5 jan 2013 mark scheme in PDF?
I NEED IT ASAP. THANK YOU :)
-
Does anyone have the physics unit 5 jan 2013 mark scheme in PDF?
I NEED IT ASAP. THANK YOU :)
MS Here : http://www.mediafire.com/?iarlr68y02hcd7y
Jan 2013 Papers : http://www.mediafire.com/?5djntd8dd7ykb#myfiles
-
MS Here : http://www.mediafire.com/?iarlr68y02hcd7y
Jan 2013 Papers : http://www.mediafire.com/?5djntd8dd7ykb#myfiles
I can't open them.
Could you send them to me in pdf please????
-
You need winrar or any other software to open the .rar folders. The files are in pdf.
-
You need winrar or any other software to open the .rar folders. The files are in pdf.
I downloaded the winrar tried to use but apparently I had to buy it. So still can't view the files
-
I downloaded the winrar tried to use but apparently I had to buy it. So still can't view the files
Ignore that post. It did work eventually and I can view all the files. Thank you for your help :)
-
Winrar keeps telling you to buy but just ignore it and it will work forever :D
-
Gud luk with S1 every1!!! ;) :)
-
Does anyone have the mark scheme for the scrapped C4 June 2012 Edexcel paper? :)
-
https://studentforums.biz/index.php?topic=13351.0
-
https://studentforums.biz/index.php?topic=13351.0
Thank you but I need a link to the mark scheme for c4 june 2012 edexcel 'scrapped paper' - the paper that got leaked
-
Why would you need that? It's one year old. This is the official MS.
No idea where to get it from.
-
C2 On Juma'ah, May Allah Make us succesfull in anything we attempt
-
hey guys can someone please answer this.how do you extract the cells from a blatocyst?.whats the method of extraction?you cant just take the cells from the blastocyst.so how do you extract the cells?
-
dont really know.. but i guess dey r not gonna ask such a q. :) :-\
-
dont really know.. but i guess dey r not gonna ask such a q. :) :-\
They won't, indeed. I've answered his question here: https://studentforums.biz/index.php?topic=7382.675 (https://studentforums.biz/index.php?topic=7382.675)
In case you're wondering too :)
-
does any1 hav the chem 6 may 2013 unofficial mark scheme??
-
does any1 hav the chem 6 may 2013 unofficial mark scheme??
No, but we have the official mark scheme.
-
ASdude, have you got your statement of entry?
Timing in Kuwait is 11 am for morning session (reporting time 10:30am) and 3:30 pm for the afternoon session (reporting time 3:00 pm)
Don't know about KSA but probably the same.
http://www.edexcel.com/iwantto/Documents/5882-June-2013-GCE-imetable-FINAL-3-new.pdf
I don't know anything about physics but solving papers and reading examiner reports helps.
You may also want to check this board for resources: https://studentforums.biz/index.php?board=95.0
abod what subjects do you take?
-
A2 biology.
-
http://www.docbrown.info/page19/EDEXCELchemistryA2.htm#Unit_6
-
does anyone know if i have to maintain a constant significant value in my chemistry paper 2.or can i just write everything that appears on my calculator?even if i take am sf value if my answer and the mark scheme answer varies slightly will there be any issues?
-
can anyone please describe the whole totipotency in plant cells experiment?i really need it.and any clues for the upcoming biology 6BI02 paper.please share.
-
how was the bio unit 2 paper guys?i would say it was pretty good Alhamdulillah.but i do have doubts in a few questions.
-
how was the bio unit 2 paper guys?i would say it was pretty good Alhamdulillah.but i do have doubts in a few questions.
Keep them for tomorrow ;)
-
does anyone know if i have to learn the collision theory,stearic factor,transition state theory,heterogenous catalysis and autocatalysis for my chemistry unit 2 exam?please do inform.
-
does anyone know if i have to learn the collision theory,stearic factor,transition state theory,heterogenous catalysis and autocatalysis for my chemistry unit 2 exam?please do inform.
If they are in the specification then it's better if you read about them.
-
All the best for Chemistry Unit 2. Biology Unit 2 was great Allahamdulliah.
-
All the best for Chemistry Unit 2. Biology Unit 2 was great Allahamdulliah.
Good to hear. Good luck.
-
hey guyz...anyone writing A2 psychology Unit 3 this Monday?? ideas for the 12 marker in criminology and child psych sections? and what do you think will be the main topic's covered in criminology and child psych sections?
-
When do they release the edexcel mark schemes?
Thanks.
-
When do they release the edexcel mark schemes?
Thanks.
Late July, I guess.
-
Late July, I guess.
But for the Jan 2013 exams, "saadmanan" uploaded the mark schemes like around 1 month after the exams.
-
But for the Jan 2013 exams, "saadmanan" uploaded the mark schemes like around 1 month after the exams.
Late July is about 1 month after the exams. 25th of June is the last exam
-
can anyone plzzz tell me where i can get the markschemes for the pjilip allan practice papers?
-
no idea
-
Hey everyone I have a Bio unit 3 exam tomorrow and im very worried. Does anyone have an idea of what to practice more ?
-
Hey everyone I have a Bio unit 3 exam tomorrow and im very worried. Does anyone have an idea of what to practice more ?
Solve past papers. Practice writing bibliography. Read examiner reports. If you have any doubts post them or send me a message.
-
I have practiced almost all of th epracticals but I don't know what exactly to focus on. I'll read the examiner reports but do you have any idea what I should mainly focus on?
-
I have practiced almost all of th epracticals but I don't know what exactly to focus on. I'll read the examiner reports but do you have any idea what I should mainly focus on?
I don't know what to exactly focus on, just revise all the practicals.
Patrice writing references and plotting/sketching graphs.
in this paper for example: http://www.edexcel.com/migrationdocuments/QP%20GCE%20Curriculum%202000/June%202013%20-%20QP/6BI07_01_que_20130507.pdf
4 marks for writing references correctly, 3 for sketching a graph and 5 for plotting a graph correctly. That's a total of 12 easy marks
-
Does anyone have the active book for AS BIOLOGY WITH STAFFORD ? If, yes please upload it here.
-
somebody PLEASEEEE HELP ME!!!iwrote all of my paper 6 exams with blue ink pen.how bad is it?