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

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

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Reply 1540

CCFielding

Original post by Loiks94

Was the kingdom animale or protoctist for the water bear and why?

I put animalia because it was in the domain eukaryotae?

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Reply 1541

Majeue

Original post by niceguy95

that's disappointing, wrote that then crossed and put protoctusta as t was called water bear

same here.

Reply 1542

MrMeep2580

Original post by theCreator

As the label for X I put "Organic base cytosine", and my friend said I wouldnt get the mark. Would I get the mark?

I was deciding between nitrogenus base or Cytosine. I went to Cytosine

Reply 1543

wingscarletx

I thought the friggin' water bear was in Protoctista because it's so tiny :mad:

Reply 1544

Onkar-M

Original post by jollygood

I did

Me too !
It's always in the mark schemes :smile:

Reply 1545

Karishma

i completely forgot what phylogeny was! and i read about it last night :frown:

Reply 1546

amar9kan

Original post by niceguy95

Can someone explain, about the high concentration of ethanol question after the break down part

acts as competitive inhibitor. Fills active site.
Fewer substrate(D..) and enzyme complexes form.
Slower Rate of Reaction

Reply 1547

MrMeep2580

Original post by MedMed12

cabn you explain this? cant remember what I put
definitely had one higher up on r1

I think the bacteria were getting used to the N14 as its still the same element just an isotope. so i put it higher as its still using some N15

Reply 1548

Majeue

Original post by wingscarletx

I thought the friggin' water bear was in Protoctista because it's so tiny :mad:

Same here

Reply 1549

exams567

Original post by Karishma

i completely forgot what phylogeny was! and i read about it last night :frown:

me too

Reply 1550

MarkProbio

Original post by wingscarletx

I thought the friggin' water bear was in Protoctista because it's so tiny :mad:

Vertebrate was a hint :smile:

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Reply 1551

Sam_1996

Original post by amar9kan

acts as competitive inhibitor. Fills active site.
Fewer substrate(D..) and enzyme complexes form.
Slower Rate of Reaction

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

Reply 1552

QuantumSuicide

Does it matter if u put the R group above or below the carbon?

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Reply 1553

MrJiggly

Original post by jollygood

I did the same thing but its a biological molecule and enzymes are proteins too. I don't think so we will lose this mark :smile:

Hopefully, but I'm in two minds about this as they've already written protein in the question...

Reply 1554

TheSnail

Original post by Sam_1996

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

This is what I thought too, breaking down the DNS (or whatever it was) produced the toxin

Reply 1555

Liberty.

Original post by Majeue

Same here

I thought it was Animalia because it stated it was invertebrate. I just assumed it was some crappy insect thing :tongue:

Reply 1556

MrMeep2580

Original post by g.k.galloway

I put that but in r2 the one above was in line with the far right test tube

think about it like this...
in the first test tube with the band given the DNA strands were XX
after replicating once in the new nitrogen it was XY
after replicating again it was YY and XY
then the final test tube was YY

It may be wrong but it made sense to me :smile: