Competition - post a photo you've taken of nature >>

OCR Biology F212 (Molecules, Biodiversity, Food and Health)- 21st May 2012

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I might copypasta this and send it to them haha... Completely agree with everything you said. Nearly the whole of the first question was suggest, which basically just put me off to a really bad start... I was really hoping for an A, but now I'm really doubting myself :frown:

I definitely agree! Really revised hard, learnt the specification and all the past questions....it wasn't really a test of your scientific ability but more application and logic! Too vague and I was doomed from question 1! :frown:

lets hope the boundaries are extremely low!

Reply 4461

otrivine

Original post by AS01

ya the paper was quite good
ya a lot on enzymes I had thought better to keep exm on enzymes rather than writing F212 :biggrin:

ya its about how they feeding on flies creates selection pressure so the one which can produce inaudible sound will feed on fly and the same mutated genes passed on and the one which cannot produce inaudible sound died as they cannot feed anymore.
yup I described the type of variation giving examples of bats
which one you find the hardest?

the hardest was the one with what happens if have no calorimeter? ?
i said you light bulb something and use stop watch and calculate % transmission
then for second one said boil with HCL neutralise hydrogen carbonate e..t.c

Reply 4462

kj14

Original post by AS01

I put random, sample,species evenness,abundance(as the question does not specify the species in the quadrat) and species richness

thats 5 werent there 6 marks?

Reply 4463

MrMeep2580

Original post by Corryms

habitat was there too.

yeah and that! you got the same? :biggrin:

Reply 4464

AS01

Original post by otrivine

is bacteria heterotrphic ?

and for that question i said domain 3 and are archeae bacteria and eukaryote and said based on trna research like rna polymerase?

same i wrote parasitic and heterotrophic

Reply 4465

Ellodie

Although grade boundaries will be based on general results, a little help from protesting and complaints may reduce the grade boundaries slightly. I mean after all, every mark counts.

Example: http://news.bbc.co.uk/1/hi/8482880.stm

Reply 4466

otrivine

Original post by MrMeep2580

Swear the question wasn't about bacteria being heterotrophic it was about Fungi, in which i said they are Sacrophytic therefore they are heterotrophic :smile:

no you had to complete like the names got plants protoctist cellulose cell wall e,t,c

Reply 4467

funkscam

Original post by MrMeep2580

Swear the question wasn't about bacteria being heterotrophic it was about Fungi, in which i said they are Sacrophytic therefore they are heterotrophic :smile:

I thought it was asking whether Prokaryotes were heterotrophs or autotrophs?

Reply 4468

kj14

Original post by otrivine

is bacteria heterotrphic ?

and for that question i said domain 3 and are archeae bacteria and eukaryote and said based on trna research like rna polymerase?

dunno i wrote heterotrophic too
and its based on rRNA

Reply 4469

raj007007007

one of the words was habitat as it was 'the place where an organism lives'

Reply 4470

jawsonthefloor

Original post by superduperr

no it was a beta glucose?

i put polysaccharide too, i had no idea! :frown:

Reply 4471

otrivine

Original post by AS01

same i wrote parasitic and heterotrophic

wait only said write nutriton write? so only wrote heterotrophic?

Reply 4472

AS01

Original post by otrivine

I said just look at the intensity of the colour of solution if darker then more sugar present if light then less.
What did you keep why they are said models?

Reply 4473

MrMeep2580

Original post by otrivine

You can't caculate transmission without a calorimeter, I said use different concentrations of reducing sugars and use them to compare and find a qualative or quantative result :smile:

Reply 4474

phaseshift

Original post by kj14

thats 5 werent there 6 marks?

6 Marks available for 6 words you had to fill in, I think..

Reply 4475

samar786

Original post by Corryms

What did people put for the question that said to suggest one way the farmer can increase production.
I put vaccinations?

I put feed them with antibiotics :s

This was posted from The Student Room's iPhone/iPad App

Reply 4476

otrivine

Original post by kj14

dunno i wrote heterotrophic too
and its based on rRNA

shoot made a mistake if i said like RNA polymerase will they allow it?

Reply 4477

AS01

Original post by kj14

thats 5 werent there 6 marks?

I don't know but as far as I reckon its just 5 of them

Reply 4478

Corryms

Original post by MrMeep2580

yeah and that! you got the same? :biggrin:

I put random, sample,species evenness, species richness, habitat, and biodiversity.
Not sure if I actually put biodiversity, I just know I didn't put abundance, simpsons, or percentage cover.

Reply 4479

Crowseph

For the question about similarities and differences between agarose and amylose...

I put they are both straight chain, i.e. neither of them are branched
And that Agarose has 1-3 glycosidic bonds as well as 1-4 bonds, whereas amylose just has 1-4 bonds.

Do you think this is right???