Edexcel A2 Biology Unit 4(6BIO4) 13/06/11 - OFFICIAL THREAD !

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Reply 300

GdotNizzle

Good luck for tomoz everyone!!

Reply 301

doobucks

Original post by LibbyU

1) Study on the ecology of a habitat
2) Effects of temperature on the development of organisms
3) DNA amplification using PCR
4) Gel electrophoresis
5) Effect of different antibiotics on bacteria

DNA analysis isn't a core practical :confused:

Reply 302

darkiee

Original post by jam277

DNA analysis isn't a core practical :confused:

He didnt mention anything about DNA analysis, PCR is a core practical which they CAN ask and gel ELECTROPHORESIS

Reply 303

Samia99

Original post by LibbyU

1) Study on the ecology of a habitat
2) Effects of temperature on the development of organisms
3) DNA amplification using PCR
4) Gel electrophoresis
5) Effect of different antibiotics on bacteria

Brine Shrimps came for unit 6

And effectiveness of Anti-biotic has come in Jan11

So....Guess it's Ecology/PCR this tym? :tongue:

Reply 304

InItToWinItGetIt?

Original post by Samia99

Brine Shrimps came for unit 6

And effectiveness of Anti-biotic has come in Jan11

So....Guess it's Ecology/PCR this tym? :tongue:

what?

Reply 305

doobucks

Original post by darkiee

He didnt mention anything about DNA analysis, PCR is a core practical which they CAN ask and gel ELECTROPHORESIS

Oh ok. But the core practicals usually aren't in the normal book. It's usually in the activity sheets/revision guide. So I thought it isn't a core practical.

Reply 306

doobucks

Original post by InItToWinItGetIt?

what?

Unit 6 for international I presume. They do an exam instead of coursework.

Reply 307

lw:)

You know how in the Jan11 paper, they asked us about the structure of carbohydrates? i think, would synoptic elements are possible?

Reply 308

darkiee

Original post by InItToWinItGetIt?

what?

I think he did the practical exam, instead of the investigation

Reply 309

bashx

Does anybody have the january/ june past papers for edexcel?? unit 4. I cant find them anywhere. Also if you have a look at the january 10 and january 11 paper, you will notice they have asked similar questions on similar topics. for examplem abiotic biotic factors, and DNA profiling. So try and compare the june past paper!

Reply 310

doobucks

Original post by Samia99

Brine Shrimps came for unit 6

And effectiveness of Anti-biotic has come in Jan11

So....Guess it's Ecology/PCR this tym? :tongue:

DNA profiling came up in jan 10 though. So did Ecology. But the actual exam didn't have like what are the procedures? I think it'll probably be gel Electrophoresis.

Reply 311

darkiee

Original post by jam277

Oh ok. But the core practicals usually aren't in the normal book. It's usually in the activity sheets/revision guide. So I thought it isn't a core practical.

All core practical are in the book, they just dont go on about it

Page 107- Antibiotic Investigation
Page 22- The ecosystem 1
Page 50-Brine shrimps
Page 78-79 - Gel electrophoresis
Page 80- PCR

This is the Ann Fullicks Book

Reply 312

InItToWinItGetIt?

Original post by jam277

DNA profiling came up in jan 10 though. So did Ecology. But the actual exam didn't have like what are the procedures? I think it'll probably be gel Electrophoresis.

I'm putting my money on brine shrimp hatch rates and seedling growth rates.

Original post by jam277

Unit 6 for international I presume. They do an exam instead of coursework.

Oh ok cheers.

Original post by bashx

PAGE 8 of this thread

Reply 313

doobucks

Original post by lw:)

You know how in the Jan11 paper, they asked us about the structure of carbohydrates? i think, would synoptic elements are possible?

Ecology in unit 2. That might be there e.g. biodiversity.
Anything synoptic can come up. DNA analysis might involve chromosomes/protein synthesis.

Reply 314

LibbyU

Original post by jam277

DNA analysis isn't a core practical :confused:

PCR and electrophoresis are practicals that you can carry out, with procedures you have to know. I got the list of core practicals from the edexcel website :smile:

I made a list of all the core practicals for every unit and these are the ones for unit 4

Reply 315

Samia99

Original post by jam277

DNA profiling came up in jan 10 though. So did Ecology. But the actual exam didn't have like what are the procedures? I think it'll probably be gel Electrophoresis.

Umm yeah! That was Dna profiling!
PCR's still didn't :tongue:

Evn though Dna's amplifyd thru it and used in the gel electrophoresis to create a Profyl ... Relatd :tongue:

Ahan, let's just focus on PCR & Gel Elctrophoresis , Ecology too!

Brine Shrimps came up this year! for 6BIO8!
They nevr give the same practical for 6BIO8 & 6BIO4!

Although there's no harm in revising :tongue:

Reply 316

LibbyU

Original post by Samia99

Brine Shrimps came for unit 6

And effectiveness of Anti-biotic has come in Jan11

So....Guess it's Ecology/PCR this tym? :tongue:

Just had a quick flick through the past papers...

June 2010 had antibiotic bacteria one
Jan 2011 had a gel electrophoresis question and had a few shorter questions on quadrats/ecology
Jan 2010 also had gel electrophoresis and quadrats