OCR Biology F212 Revision [3rd June 2013] (Now Closed)

The awkward moment when you come out of the exam thinking you've got 90+, as soon as you come on tsr that figure keeps going down like an elevator........

Reply 1562

lauren1brown

6 marks on the structure of collagen?!

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Reply 1563

TheSnail

17

Original post by MrMeep2580

At first when i read that I went "CHROMOSOMES WHAAAAAAAAAAAAT.' But now it makes sense you're just using algebra. :biggrin:

yeah i did that too kinda.

Maths solves everything :biggrin:

Reply 1564

milworthy

1

Original post by niceguy95

Protocrista due to size (0.1 micro meters) and it being a water bear

Protoctusta are usually found in water

In the question it said it was an invertabrate, meaning it had to be animal

Reply 1565

Original post by theCreator

Water bear I put animalia purely because it was multicellular.

My mind went blank on cellulose structure ffs. Then I put virus for the TB transmitter..... But other than that it was amazing when compared to F211. Unfortunately I think I'll probably lose about 20 marks because the markscheme is so bloody picky and precise even if you have the right idea.

Cellulose structure?! did I miss out a question or do you mean collagen?

Reply 1566

username1107833

Original post by Liamnut

Cellulose structure?! did I miss out a question or do you mean collagen?

Woops, sorry collagen

Reply 1567

MrMeep2580

why the grey squirrel populus may be lower than the red squirrel even though the sampling of people says the opposite?

I put:
Red squirrels only come out at night, people not around at night.
Grey squirrels may be counted twice by two different people.

Reply 1568

Original post by milworthy

In the question it said it was an invertabrate, meaning it had to be animal

Just give people who think they're not animals this link: http://en.wikipedia.org/wiki/Tardigrade

First line is particularly interesting, "Tardigrades (commonly known as waterbears or moss piglets)[2] are small, water-dwelling, segmented animals with eight legs."

Reply 1569

skywalker12

Was there a question about the order of classification?

Reply 1570

MrMeep2580

Original post by niceguy95

Protocrista due to size (0.1 micro meters) and it being a water bear

Protoctusta are usually found in water

it wasnt micro metre is was milli metre.

Reply 1571

Original post by theCreator

Woops, sorry collagen

Thank god, I **** myself lol

Reply 1572

username1107833

Original post by MrMeep2580

why the grey squirrel populus may be lower than the red squirrel even though the sampling of people says the opposite?

I put:
Red squirrels only come out at night, people not around at night.
Grey squirrels may be counted twice by two different people.

I put because grey squirrels are in plain sight more often since they are mostly on the ground. Then I also put they may have counted some squirrels twice.

I don't think red squirrels come out at night...Squirrels aren't nocturnal.

Reply 1573

Majeue

1

Original post by Sam_1996

It wasn't an inhibitor as it was also broken down by the enzyme

This. It reduces conc. of toxic products in liver by mixing with non toxic from ethanol and also less DHG in wine to begin so effects are less s there is less of the toxin

Reply 1574

wingscarletx

Darn OCR and their tricks! :mad:

Reply 1575

Moon1ight

15

Original post by skywalker12

Was there a question about the order of classification?

Last question - just followed the sequence - think I put order as one of the things though

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Reply 1576

Original post by g.k.galloway

That confused me too...I settled with putting protein lol, probably wrong but only 1 mark :smile:

I noticed they had protein in the question, so it was between polypeptide and enzyme. I just put enzyme.

Reply 1577

ellie2996

7

Help!

Did you have to draw the amino acid or write its formula!?!

Reply 1578

LostPlanet2Luke