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

Reply 1380

Rick_095

Original post by purplemind

I think both B and C were phagotytes.
One was a monocyte and another one was a neutrophil. :smile:

Me too, I also put B and C. I took the fact that they said "cell(s)" as a hint.

Reply 1381

ellemcjelly

Original post by Sam_1996

Does it matter that I drew a solid line for hydrogen bonds but labelled them?

you might get one mark, where did you draw them anyway?

Reply 1382

TheSnail

17

I thought that was okay :smile:

Lovely phagocytosis question :smile:

I put B and C for the phagocytes, is that right? I know it was defo C but I was debating about B :smile:

Reply 1383

Dr. Django

12

Oh ****. On the selective breeding question I didn't mention the terms 'longterm' and 'short term' :/ everything I said was correct and I included the stuff about ensuring no future disease susceptibility but I completely forgot to specify long told short term :/ will I automatically get 0?

Reply 1384

MarkProbio

7

Personally I loved this paper.

Posted from TSR Mobile

Reply 1385

otrivine

14

Original post by rival_

The question about why complementary based pairing is important was hard, asexual selective reproduction was just a myth lol

The importatance of complementary base pairing is so that the bases have to be correct in order for a double helix strand to form , and also so that a amino acid can be coded to form a protein molecule (polypeptide)

Reply 1386

Sam_1996

Original post by ellemcjelly

you might get one mark, where did you draw them anyway?

On the diagram

Reply 1387

Rick_095

Original post by frogut

What did everyone put for the domain and kingdom of the water bear thing in that last question? I guessed protoctist and eukaryote?

I think I lost one or two marks on that, I realised last minute that the "water bear" was actually that microscopic organism on the insert...not an actual bear, silly me.

Reply 1388

MedMed12

21

Original post by otrivine

The importatance of complementary base pairing is so that the bases have to be correct in order for a double helix strand to form , and also so that a amino acid can be coded to form a protein molecule (polypeptide)

how did you find it otrivine? :smile:

Reply 1389

Stacie0395

6

Original post by frogut

What did everyone put for the domain and kingdom of the water bear thing in that last question? I guessed protoctist and eukaryote?

They're animals :smile:

Reply 1390

Caroline680

I thought it went alright :smile:

Completely blanked on some things like the TB (I put something like Mycelium tuburculosis??) and 3 ways why low income was more susceptible.. Also I think the 7 mark potato question was a bit silly.. I talked about selective breeding, using the wild South African potato, antibiotics (??), fertilisers and stuff?

Who knows, I'm hoping just under 70 is an A because I think that's how many I've got ://

Reply 1391

rival_

10

Thanks to everyone who replied to me about the female anopheles this morning, little bit funny how the females always suck in most context/s lol

Reply 1392

TheSnail

17

Original post by Dr. Django

Oh ****. On the selective breeding question I didn't mention the terms 'longterm' and 'short term' :/ everything I said was correct and I included the stuff about ensuring no future disease susceptibility but I completely forgot to specify long told short term :/ will I automatically get 0?

I didn't either but I don't think you had to actually specify. Although I think I may have put which ones were long term, just not the short terms ones :smile:

Reply 1393

ellemcjelly

Original post by frogut

What did everyone put for the domain and kingdom of the water bear thing in that last question? I guessed protoctist and eukaryote?

thats what i said but loads of my friends said it was animalia coz it was a bug :s

Reply 1394

purplemind

6

Original post by ellemcjelly

what was the answer to why people dont wanna cull squirrels?

I said that there are moral reasons, they have right to live.

Reply 1395

TheSnail

17

Original post by Caroline680

I thought it went alright :smile:

Completely blanked on some things like the TB (I put something like Mycelium tuburculosis??) and 3 ways why low income was more susceptible.. Also I think the 7 mark potato question was a bit silly.. I talked about selective breeding, using the wild South African potato, antibiotics (??), fertilisers and stuff?

Who knows, I'm hoping just under 70 is an A because I think that's how many I've got ://

I think its Mycobacterium tuberculosis and Mycobacterium bovis. That's what I put (Don't think you'll need both)

Reply 1396

rival_

10

Original post by otrivine

The importatance of complementary base pairing is so that the bases have to be correct in order for a double helix strand to form , and also so that a amino acid can be coded to form a protein molecule (polypeptide)

That can be done without complementary based pairing, RNA still synthesise proteins from a non complimentary based paired strand?

Reply 1397

otrivine

14

Original post by MedMed12

how did you find it otrivine? :smile:

No I did not do the paper,already did it in Jan 2013 and got an A, just curious if it was harder than our paper in Jan :biggrin:

How was it for you :smile:

Looking at peoples comment , the paper was nice

Reply 1398

TheSnail

17

Original post by Rick_095

I think I lost one or two marks on that, I realised last minute that the "water bear" was actually that microscopic organism on the insert...not an actual bear, silly me.