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AQA Biology B2 and B3 13th May 2014

On the B2 paper, what was the answer to one of the first questions, the name of the acid? Everyone at me school seems to have put different answers.

The stomach acid? I'm pretty sure it's hydrochloric.

I don't know if anyone's already asked this but was the question about magnesium ions in the chlorophyll in the spec? At my school loads of people were saying it wasn't which would take the total marks of the paper down by 2. Anybody know?

Reply 1381

leahkatexo

Original post by gcser

it's hydrochloric

Yes!! I put that:-)

Reply 1382

biochephy

4

Original post by 5sos

for some reason i put amino acids?
but i know it is hydrochloric acid

i put that as well...i think thats right

Reply 1383

SukhS

Original post by Ollywhat

Omg that made me laugh too much ahahhahahha I wish I'd remembered!

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My biology teacher is weird so it kind of helps LOL.

Reply 1384

interstitial

18

Original post by IWasCoolOnce

The stomach acid? I'm pretty sure it's hydrochloric.

I don't know if anyone's already asked this but was the question about magnesium ions in the chlorophyll in the spec? At my school loads of people were saying it wasn't which would take the total marks of the paper down by 2. Anybody know?

It didn't need to be in the spec, it told you about it in the question.

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Reply 1385

rosedunster

Original post by IWasCoolOnce

The stomach acid? I'm pretty sure it's hydrochloric.

I don't know if anyone's already asked this but was the question about magnesium ions in the chlorophyll in the spec? At my school loads of people were saying it wasn't which would take the total marks of the paper down by 2. Anybody know?

nope youre right it wasnt on the spec

Reply 1386

Funkyfish24

3

Original post by 5sos

Am i the only one who found the B2 paper dreadfully hard?

It was hell! I didn't do well at all. Gutted since I've been revising since before easter and I feel like I guessed 90% of the answers! ;(

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Reply 1387

Kitty201322

2

the question about cells, was the answer meiosis? because that's what i did D;

Reply 1388

B-E-A-S-T

Original post by biochephy

for B2 revise fossils,plants,respiration>exercise also enzymes and transect diffusion :smile:

Bit late telling him now isn't it?

Reply 1389

IWasCoolOnce

Original post by majmuh24

It didn't need to be in the spec, it told you about it in the question.

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I guess but I know it left a few people stumped thinking they needed to know more about it.

Reply 1390

manoornadim

6

Original post by Whizbox

I can't be the only person that thought B2 was easier than B3 can I?

No quite a few people I know did

Reply 1391

js171

2

THE GREASE STOMATA QUESTION AND DEFORESTATION QUESTION were on a different paper if you do additional and further addtional science!

Reply 1392

Duckielurve

1

Original post by leahkatexo

On the B2 paper, what was the answer to one of the first questions, the name of the acid? Everyone at me school seems to have put different answers.

It's hydrochloric, I thought that was easy- and the amino acids one but a lot of people wrote other stuff at my school too but I'm certain hydrochloric acid was the answer to that one and that amino acids were are the product f digesting protein- no offence but the first bit of b2 was really easy imo and then it got harder after that :smile:

Reply 1393

rosedunster

Original post by Funkyfish24

It was hell! I didn't do well at all. Gutted since I've been revising since before easter and I feel like I guessed 90% of the answers! ;(

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Yes felt exactly the same AAHHH

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Reply 1394

leahkatexo

Original post by 5sos

for some reason i put amino acids?
but i know it is hydrochloric acid

I put hydrochloric, everyone I know put amino acids :/

Reply 1395

SukhS

What was the name of the molecules chemical substance making up Genes, I put Amino Acids

Reply 1396

js171

2

Is there a thread for OCR GCSE ICT

Reply 1397

n2697

11

For the cyclist question in B3 where it asked to look at the graph. Was it vasodilation or vasoconstriction?? Because half of my friends say it's constriction and some say vasodilation

Reply 1398

Beefman10

3

What do you think the grade boundaries will be for aqa b2 additional higher?? I found some of the questions straight forward however the exam totally knocked me off edge. Couldn't concentrate and was slightly panicking. I couldn't think straight ever. Don't think i did too well. What really bugged me was the questions along the lines of magnesium ions. THAT WASN'T IN THE SPEC?!? How was i suppose to know that?

What did everyone get for the first 2 questions (Can't remember the question) ;
1. amino acids
2. protease

And what did everyone get for the question about genetic inheritance where you have to draw a diagram to work it out?
i got, 1/4 and 25%

The 2, 6 marker questions were about diffusions and species of shrimps.
For diffusion i mentioned the red blood cell and how they diffuse oxygen into muscular tissues (Not sure if that's correct) And mentioned the diffusion of oxygen and carbon dioxide in the cell membrane.. stupidly forgot to say something about plants..
And for the shrimp questions.. didn't have much time so i didn't write much.

This was my first exams so i was slightly shocked up when i opened the paper and it was everything i revised the least.

I only hope the grade boundaries will be very low ... Moving on to chemistry now.. Got 2 days to revise the whole syllabus. GREAT!

Reply 1399

Charlotte1998

Original post by billsminaj

Hey everyone. I found b3 better than b2, personally. Those asking about the nitrate one, it says in the textbook to make proteins. Also, the magnesium question explained chlorophyll before that. DONT WORRY, I'm SURE the grade boundaries will be pretty low for b2. For b3, I enjoyed the paper. And the question for blood vessels was only asking about vasconstriction, not vasodilation because his temp DROPPED.

Just think about NAILING b1 after half term. REALLY go for it. Best of luck ��

Is it not vasodilation because his body is still above normal temperature? It is going down because of the effects of dilation, but is still higher than before. I thought that the skin temperature increased because the blood vessels are closer to the skin's surface so heat energy is carried to the skin where it is lost to the air. :smile:

I'm sure chemistry and physics will be better!

AQA Biology B2 and B3 13th May 2014

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