A2 Biology OCR June 2015 Revision Thread

Original post by ChoccyPhilly

I thought last years paper was very good and am a bit annoyed that wasn't our real exam as long questions on transcription and translation and biotech are all really good and it tested our unit 5 knowledge at least!

I like to feel challenged and I actually enjoyed last years paper, I thought it was genuinely interesting to see what they had done. This year however I did not get that satisfaction, it felt like a cheap rip off of a real F215.

Reply 4902

Original post by a123a

What ums do you think 75 would get? I thought an A would be around the same as last year, because last year had a lot more recall questions.

On one hand, those who didn't learn the content well would have been ok compared to them doing last years paper but people who did might not have done as well as a paper that had so many recall questions. So I think it brings people up but lowers the really studious people at around 50-80 and no higher. I think the grade boundaries will be marginally higher as a result

Reply 4903

Original post by NilaJ

I like to feel challenged and I actually enjoyed last years paper, I thought it was genuinely interesting to see what they had done. This year however I did not get that satisfaction, it felt like a cheap rip off of a real F215.

Same! I thought last year had a good balance of how they tried to test as many areas as possible in applied contexts but not ones that were too far out of our comfort zone. It was challenging in a good way and possible if you worked hard but this year's one feels like a guess game and I feel cheated out of my hard work.

Reply 4904

TeeLisa55

6

Does anyone know the average ums needed for a B overall? An A is out of the window after that paper..

Reply 4905

Original post by TeeLisa55

Does anyone know the average ums needed for a B overall? An A is out of the window after that paper..

420 across all units, if you maintained an A throughout your coursework and other exams, you'd need like an E to get a B overall from this paper

Reply 4906

TeeLisa55

6

Original post by ChoccyPhilly

420 across all units, if you maintained an A throughout your coursework and other exams, you'd need like an E to get a B overall from this paper

Gracias

Reply 4907

Miller_r

1

Original post by ChoccyPhilly

420 across all units, if you maintained an A throughout your coursework and other exams, you'd need like an E to get a B overall from this paper

This paper anoyed me soo much i forgot that this was the case i suppose it is not tat bad when you look at it like that

Reply 4908

Lychees

Can someone point me.to the page that has the picture of all the grade boundaries that have been set over the years

Reply 4909

Original post by Miller_r

This paper anoyed me soo much i forgot that this was the case i suppose it is not tat bad when you look at it like that

Yeah I was like this for all my subjects - basically secured a B but the difference in getting an A over a B involved getting an A over an E in my final exam. Frustrating that you're so close but it happens...

Reply 4910

TheWorthyy

Unofficial mark scheme?

Reply 4911

Student23478

So are interphase and telophase not correct?? Also I didn't put 1 division or 2 division for mitos meoisis will that deduct marks?

Reply 4912

Original post by Student23478

So are interphase and telophase not correct?? Also I didn't put 1 division or 2 division for mitos meoisis will that deduct marks?

I don't think telophase is correct and did you mean that you just put mitosis and meiosis rather than meiosis 2? If you put meiosis 1 or 2, you'd be wrong

Reply 4913

Student23478

Original post by ChoccyPhilly

I don't think telophase is correct and did you mean that you just put mitosis and meiosis rather than meiosis 2? If you put meiosis 1 or 2, you'd be wrong

I just put mitosis and meoisis surely that will be sufficient? Also is interphase right just not telophase?

Reply 4914

Original post by Student23478

I just put mitosis and meoisis surely that will be sufficient? Also is interphase right just not telophase?

Mitosis and meiosis by itself is correct. If it were meiosis 2 then the DNA mass would halve only once but it showed that the mass halved twice.

Well, all that happens in telophase is that nuclear envelope forms and chromosomes recondense. The cells don't divide yet, so this all happens in one cell and then cytokineses finally separates the DNA into two separate cells

Reply 4915

Student23478

Original post by ChoccyPhilly

Mitosis and meiosis by itself is correct. If it were meiosis 2 then the DNA mass would halve only once but it showed that the mass halved twice.

Well, all that happens in telophase is that nuclear envelope forms and chromosomes recondense. The cells don't divide yet, so this all happens in one cell and then cytokineses finally separates the DNA into two separate cells

Interphase would he right though for the first box ?

Reply 4916