Go to first unread
Back
to top
Edexcel GCE Biology Unit 4 6BI04 June 2013
Watch
Announcements
I've looked around, but there doesn't seem to be a thread about this. This is one of the harder exams, I feel and if we could all share some resources etc, it might be helpful!
Grade boundaries are as follows for A*/A/B:
Jan 2013 - 67/63/59
June 2012 - 63/58/53
Jan 2012 - 67/62/57
June 2011 - 60/56/52
Jan 2011 - 58/54/50
June 2010 - 63/58/53
Jan 10 - No A*/59/55
all out of 90.
Grade boundaries are as follows for A*/A/B:
Jan 2013 - 67/63/59
June 2012 - 63/58/53
Jan 2012 - 67/62/57
June 2011 - 60/56/52
Jan 2011 - 58/54/50
June 2010 - 63/58/53
Jan 10 - No A*/59/55
all out of 90.
1
reply
Report
#2
(Original post by nukethemaly)
I've looked around, but there doesn't seem to be a thread about this. This is one of the harder exams, I feel and if we could all share some resources etc, it might be helpful!
Grade boundaries are as follows for A*/A/B:
Jan 2013 - 67/63/59
June 2012 - 63/58/53
Jan 2012 - 67/62/57
June 2011 - 60/56/52
Jan 2011 - 58/54/50
June 2010 - 63/58/53
Jan 10 - No A*/59/55
all out of 90.
I've looked around, but there doesn't seem to be a thread about this. This is one of the harder exams, I feel and if we could all share some resources etc, it might be helpful!
Grade boundaries are as follows for A*/A/B:
Jan 2013 - 67/63/59
June 2012 - 63/58/53
Jan 2012 - 67/62/57
June 2011 - 60/56/52
Jan 2011 - 58/54/50
June 2010 - 63/58/53
Jan 10 - No A*/59/55
all out of 90.
Posted from TSR Mobile
0
reply
(Original post by amberee)
This unit will probably be my downfall :L how confident do you feel about biology on the whole?
Posted from TSR Mobile
This unit will probably be my downfall :L how confident do you feel about biology on the whole?
Posted from TSR Mobile
1
reply
Report
#4
(Original post by nukethemaly)
I feel the same way! i've made notes etc, but i have done a few papers, but I haven't done them under exam conditions, and I also need to do a few old spec papers. NOT ENOUGH TIME! How's your revision going?
I feel the same way! i've made notes etc, but i have done a few papers, but I haven't done them under exam conditions, and I also need to do a few old spec papers. NOT ENOUGH TIME! How's your revision going?
been mostly revising. My class is still on topic 8 and we've only just started the article so the pressure is on! I just make notes using the spec it's quite helpful Posted from TSR Mobile
0
reply
(Original post by amberee)
Haven't done many past papers yet
been mostly revising. My class is still on topic 8 and we've only just started the article so the pressure is on! I just make notes using the spec it's quite helpful
Posted from TSR Mobile
Haven't done many past papers yet
been mostly revising. My class is still on topic 8 and we've only just started the article so the pressure is on! I just make notes using the spec it's quite helpful Posted from TSR Mobile
0
reply
Report
#7
(Original post by EstebanK0)
How's everyone doing?
How's everyone doing?
0
reply
Report
#8
It makes me a bit worry everyone's doing past papers for unit 4 whereas I'm still making notes and learning it all before I do any past papers! However as well as this got unit 5 and unit 2 biology :/
Posted from TSR Mobile
Posted from TSR Mobile
0
reply
Report
#9
(Original post by huma95)
It makes me a bit worry everyone's doing past papers for unit 4 whereas I'm still making notes and learning it all before I do any past papers! However as well as this got unit 5 and unit 2 biology :/
Posted from TSR Mobile
It makes me a bit worry everyone's doing past papers for unit 4 whereas I'm still making notes and learning it all before I do any past papers! However as well as this got unit 5 and unit 2 biology :/
Posted from TSR Mobile
Im also sitting unit 5 this June (much more worried about that unit and the pre release article arrgghh!). I did my first past paper yesterday and still have a lot to really get to grips with, so dont worry you arent the only one!
So any body have any thoughts as to what might come up?
0
reply
Report
#10
It's good in a way to know I ain't the only one but tbh in unit 5 there isn't much in it so they can ask you anything as I have looked at previous past papers and they ask nearly everything! But if yu look at unit 5 January 2013 that was an easy paper so I'm assuming June one is gonna be hard :/
Posted from TSR Mobile
Posted from TSR Mobile
0
reply
Report
#11
Literally haven't revised for it much or attempted past papers and its in two weeks time 
1
reply
Report
#12
(Original post by Satta101)
Literally haven't revised for it much or attempted past papers and its in two weeks time
Literally haven't revised for it much or attempted past papers and its in two weeks time
I'm doing Unit 1, 2, 4 and 5 this summer and I think this is one of the easier ones. Unit 2 (I REALLY HATE PLANTS!!!) and 5 are the ones I'm really worried about. I've literally just finished doing all my notes for biology so it's flashcards and past papers for the next couple of weeks!
0
reply
Report
#13
(Original post by explicit4u)
Still plenty of time depending on how many exams you have
I'm doing Unit 1, 2, 4 and 5 this summer and I think this is one of the easier ones. Unit 2 (I REALLY HATE PLANTS!!!) and 5 are the ones I'm really worried about. I've literally just finished doing all my notes for biology so it's flashcards and past papers for the next couple of weeks!
Still plenty of time depending on how many exams you have
I'm doing Unit 1, 2, 4 and 5 this summer and I think this is one of the easier ones. Unit 2 (I REALLY HATE PLANTS!!!) and 5 are the ones I'm really worried about. I've literally just finished doing all my notes for biology so it's flashcards and past papers for the next couple of weeks!
0
reply
Report
#15
(Original post by huma95)
It makes me a bit worry everyone's doing past papers for unit 4 whereas I'm still making notes and learning it all before I do any past papers! However as well as this got unit 5 and unit 2 biology :/
Posted from TSR Mobile
It makes me a bit worry everyone's doing past papers for unit 4 whereas I'm still making notes and learning it all before I do any past papers! However as well as this got unit 5 and unit 2 biology :/
Posted from TSR Mobile
(Original post by peanutt)
Hi
Im also sitting unit 5 this June (much more worried about that unit and the pre release article arrgghh!). I did my first past paper yesterday and still have a lot to really get to grips with, so dont worry you arent the only one!
So any body have any thoughts as to what might come up?
Hi
Im also sitting unit 5 this June (much more worried about that unit and the pre release article arrgghh!). I did my first past paper yesterday and still have a lot to really get to grips with, so dont worry you arent the only one!
So any body have any thoughts as to what might come up?
(Original post by Satta101)
Literally haven't revised for it much or attempted past papers and its in two weeks time
Literally haven't revised for it much or attempted past papers and its in two weeks time
. Done unit 2 to death
0
reply
Report
#16
I'm still making notes too. Did a mock in school and got a low B. Haven't revised much for unit 4 or 5 tbh
0
reply
Report
#17
Has anyone revised over the immune system yet? I have a question, during the humoral response could it be either a B cell or a macrophage that becomes a antigen-presenting cell to activate the T-helper cells? Or is it just macrophages that become APCs?
0
reply
(Original post by Satta101)
Has anyone revised over the immune system yet? I have a question, during the humoral response could it be either a B cell or a macrophage that becomes a antigen-presenting cell to activate the T-helper cells? Or is it just macrophages that become APCs?
Has anyone revised over the immune system yet? I have a question, during the humoral response could it be either a B cell or a macrophage that becomes a antigen-presenting cell to activate the T-helper cells? Or is it just macrophages that become APCs?
Hope this helps!
1
reply
(Original post by EstebanK0)
I'm still making notes too. Did a mock in school and got a low B. Haven't revised much for unit 4 or 5 tbh
I'm still making notes too. Did a mock in school and got a low B. Haven't revised much for unit 4 or 5 tbh
0
reply
Report
#20
(Original post by nukethemaly)
Both B cells and macrophages have the ability to become APCs, however with macrophages when T helper cells bind to them, thats when clone of T memory cells and clone of active T helper cells are produced. These clone of active T helper cells will then bind to the B cell APC and produce cytokines that stimulate the B cell which causes it to further differentiate into clone of B effector cells and B memory cells.
Hope this helps!
Both B cells and macrophages have the ability to become APCs, however with macrophages when T helper cells bind to them, thats when clone of T memory cells and clone of active T helper cells are produced. These clone of active T helper cells will then bind to the B cell APC and produce cytokines that stimulate the B cell which causes it to further differentiate into clone of B effector cells and B memory cells.
Hope this helps!
0
reply
X
Quick Reply
