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Upcoming Edexcel AS Biology: Unit 2 exam on 26 May 2011

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Reply 60

britchick

I hate using snab. :frown:

Reply 61

The Polar Dude

Original post by Bright

I didn't even look at the solutions and had a dream the night before that I saw the solutions and got everything wrong so not risking feeling depressed lol.

OK C2 HERE WE COME!

lool :biggrin:

im back, finished C2 for today, will do some tomorrow morning
now imma eat, and then do biologyyyyy :biggrin:

i actually like biology, is just memorising stuff lol

Reply 62

Bright

Original post by The Polar Dude

im back, finished C2 for today, will do some tomorrow morning
now imma eat, and then do biologyyyyy :biggrin:

i actually like biology, is just memorising stuff lol

I keep making stupid mistakes on C2.. :mad:

I hope the proof of geometric equation and the whole compound interest stuff doesn't come up! :/

Reply 63

aqua05

Original post by Hanz_a93

Trust me stuff like these have never/will not come up

What do you think is likely to come then ?? i feel soo screwed in bio :confused:

Reply 64

nadzzdan

Original post by aqua05

What do you think is likely to come then ?? i feel soo screwed in bio :confused:

Topics likely to come up...
Cell structure
Stem cells
mitosis
fertilisation
taxonomy
differential gene expression
transpiration and cohesion theory in plants

and maybe a plant tissue culture core practical but not sure about that.

Reply 65

aqua05

Original post by The Polar Dude

i dont wanna talk about stats, that was awful but chem on monday was nice, right im gonna do those 2 C2 papers, im off, good luck and stay focused loool

You doo edexcel chem ?? Goshh i hated the multiple choices in it !! It was horrible

Reply 66

aqua05

Original post by nadzzdan

Thankks

Reply 67

aqua05

Original post by nadzzdan

ohh btw could you please explain taxotomy !! i dont get it alot

Reply 68

ammarlaila

does anyone have jan 2011 unit 2 bio markscheme?

Reply 69

insertcoinhere

water paths isn´t in the specification

Reply 70

aqua05

Original post by ammarlaila

does anyone have jan 2011 unit 2 bio markscheme?

Here you goo :smile:

bio unit 2 ms jan 2011.pdf198.9KB

Reply 71

aqua05

Original post by insertcoinhere

water paths isn´t in the specification

Whaaat !!! :O OMG !! i studied like crazy for that !!! :angry:

Reply 72

The Polar Dude

Original post by Bright

I keep making stupid mistakes on C2.. :mad:

I hope the proof of geometric equation and the whole compound interest stuff doesn't come up! :/

i cant afford to make mistakes if i want to get that A
and shiiiiiit i completely forgot to revise the prooof
thank you so much, it COULD come up, like 4 marks lol

Reply 73

nadzzdan

Original post by aqua05

ohh btw could you please explain taxotomy !! i dont get it alot

right here goes,
Threee Domains
A scientist named carl woese developed a theory of naming animals according to their ancestors. according to him there are three domains.

Eukarya
Archaea
Bacteria

we belong to the eukaya domain (of course, us being eukaryotes), along with plants and the rest of animals and plants who HAVE a NUCLEUS. Fungi and other weird stuff is also here.

Archaea an bacteria are both prokaryotes. however on a molecular level they have clear differences which caused them to be in two different domains.

Bacteria are of course in the bacteria domain and Archaea you dont need to worry about much yet. This system is to show that even though bacteria and archaea are both prokaryotes, ARCHAEA are more closely related to EUKARYA on a molecular level.

Fivee Kingdoms
Now in this way of taxonomy Carl (yes both are Carls) Linneus developed 5 kingdoms (groups) in which different kinds of organisms go.

Animalia - Multicellular eukaryotes that are heterotrophs.
Plantae - Multicellular eukaryotes that are autotrophs
Fungi - obvious
Prokaryote - Prokaryotic organisms.
Protoctista - a group for organisms that dont fit into other groups. this is sloppy

Hierarchy you need to know
Kingdom Kinky
Phylum People
Class Can
Order Often
Family Find
Genus Good
Species Sex

:wink:

good so far

The 5 kingdom system was first developed and still used. We use the Genus and species name in latin to make organism naming easy. For eg.Homo sapiens = Humans.
"australians call a type of bird Flaming Galahs (best said in an australian accent) and americans call it cuckatoos. if Eolophus roseicapillus is used theres no confusion"(CGP)

the three domain system was developed later because Woese found out something carl linneus didnt. You dont need to know about that.

There, then they lived happily ever after... :biggrin:

Reply 74

The Polar Dude

Original post by aqua05

You doo edexcel chem ?? Goshh i hated the multiple choices in it !! It was horrible

hey the edexcel chem MCQ were alright, apart from the mg per gram and a few others :s-smilie:

U ready for friday unit 2?

Reply 75

The Polar Dude

Original post by Bright

HAHA I know I was thinking that aswell! :P

I just do it without drawing anything! :l

I WANT AN A!!! :l

Haha so what u doing now, I'm just going through bio past papers :smile:

Reply 76

Bright

Original post by snow leopard

I don't understand why the proof is so problematic, it's the only thing you don't have to think about in the exam - plus the geometric proof is a lot shorter than the arithmetic proof. Very easy marks...

Because I am lazy to memorise it. Memorisng= Biology

I haven't even looked at it tbh so it's probably ok :smile:

Reply 77

Bright

Original post by The Polar Dude

Haha so what u doing now, I'm just going through bio past papers :smile:

Umm... I was.. wasting time on facebook.. :colondollar:

BUT NOW going to do more past papers! :smile:

Reply 78

sunshinesmile10

Original post by aqua05

Here you goo :smile:

thank you! ! needed that too :smile:

Reply 79

The Polar Dude

Original post by Bright

Umm... I was.. wasting time on facebook.. :colondollar:

BUT NOW going to do more past papers! :smile:

i would have been on fb too but NO-ONE is on... literally everyone in my year is revising chem/bio/maths or watever
but in the evenings, its like 65+ online looool