AQA BIOL1 Biology Unit 1 Exam - 16th May 2011

Reply 980

marijuana

5

Original post by ??????????????????

Was the table for the valve question showing pressure or volume?

pressure, i got 0.2 - 0.6 as this was the time pressure of ventricles were higher than atrium

Reply 981

Liam 09

12

Original post by ??????????????????

Was the table for the valve question showing pressure or volume?

Ohhhh crap. Horrible feeling I didn't read that properly now.
I think I read it as pressure.

2 marks for that I think (?)

Reply 982

liviaaa

I'm still confused if it was 85.7 or 100. I put 85.7, but considered both. Isn't 100 beats per min a bit fast?

Reply 983

matfenmagic

Original post by Reminisce

Wasn't asking about atrioventricular valves? So it would be closed between 0.1 - 0.5 (or something... basically, when ventricles were of higher pressure). Or is this another question...

That's what I put. The whole period where the ventricle had a higher pressure than the atrium would have a closed AV valve, surely.

Reply 984

Wonderwoman93

For the pressure i puy 0.2 and 0.6 i think, when the pressure is higher in the ventricles than the atria...

Im not even sure on how well i did, hopefully more than 68 ums this time!!!

Reply 985

liviaaa

Original post by marijuana

pressure, i got 0.2 - 0.6 as this was the time pressure of ventricles were higher than atrium

Original post by Wonderwoman93

For the pressure i puy 0.2 and 0.6 i think, when the pressure is higher in the ventricles than the atria...

Im not even sure on how well i did, hopefully more than 68 ums this time!!!

I think it was 0.1 - 0.5?

Reply 986

swiftylol

18

Does anyone have the questions ? (Last time someone had the questions because they took a spare after the exam)

Reply 987

Rahul.S

14

Original post by failingatm

I've got 1 bio, 2 chem, 2 history, 3 maths and 2 critical thinking exams left so far. you?

got m1, d1, chem1 (83 from before), chem2, bio2, c3, c4, physics 2 and fp1 -_-

Reply 988

Stratos

15

Original post by liviaaa

I think it was 0.1 - 0.5?

I got that too. :cool:

Reply 989

ambrin ox

4

Original post by liviaaa

30

yup i got 30 too!

Reply 990

ambrin ox

4

does anyone know how many marks the 1st question for the heart section was???

Reply 991

Currieg

4

I know that this has been covered already, but the question about the atrioventricular valve shutting was so poorly worded.

From memory, I read it as "between which two times is the valve between the atrium and the ventricle shut"

I interpretted this to mean that I had to find the two successive times between which the physical action of the valve shutting occured.. "between which two times". So I put 0.0 and 0.1 as at 0.0, pressure in atrium > pressure in ventricle, and at 0.1, pressure in atrium < pressure in ventricle. (this pattern didn't occur anywhere else through data).

Surely this is correct?

(edited 12 years ago)

Reply 992

studentofskhs

3

How did you answer the 'evaluate the vacine' question? Alot of people said they should use antibiotics ect. but i wrote;

1. Sample size was unknown
2. Experiment was not carried out on humans
3. long term side effect was unknown
4. no control group was used.

I'm starting to doubt myself now, did i miss interprit the question?

Reply 993

username607202

17

Original post by studentofskhs

How did you answer the 'evaluate the vacine' question? Alot of people said they should use antibiotics ect. but i wrote;

1. Sample size was unknown
2. Experiment was not carried out on humans
3. long term side effect was unknown
4. no control group was used.

I'm starting to doubt myself now, did i miss interprit the question?

How many marks was that question worth again?

Reply 994

tjmcerlean

Wasnt the chylamidia question (vaccine part) about the fact that it could be dangerous because the vaccine could trigger an immune response attacking heart protein?

Reply 995

Abby :)

8

Original post by studentofskhs

How did you answer the 'evaluate the vacine' question? Alot of people said they should use antibiotics ect. but i wrote;

1. Sample size was unknown
2. Experiment was not carried out on humans
3. long term side effect was unknown
4. no control group was used.

I'm starting to doubt myself now, did i miss interprit the question?

Well i wrote something completely different...

I wrote
- Yes it a good idea, because ingested drugs would not work because proteins will be digested
- Vacinnes will stimuate the production of memory cells against Chlamidia etc

Reply 996

kingsmod1

yeah i thought i done really well guys but i did lose marks on the maths equations and abit on the heart but other than that i think i got aorund 44, any ideas wat grade tht could be?

Reply 997

swiftylol

18

Original post by Wick3d

How many marks was that question worth again?

3.

Reply 998

studentofskhs

3

Original post by Abby :)

Well i wrote something completely different...

I wrote
- Yes it a good idea, because ingested drugs would not work because proteins will be digested
- Vacinnes will stimuate the production of memory cells against Chlamidia etc

I must had misread the question then. What was the acutal question?

Reply 999

kingsmod1

what was the answer to the very last question guys, u dont talk about active trnasport much do u

i thought u do like thin diffusion pathway etc. coz it asks how is it adapted!

AQA BIOL1 Biology Unit 1 Exam - 16th May 2011

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