This discussion is now closed.

Check out other Related discussions

AQA BIOL1 ~ 14 May 2012 ~ AS Biology

Wow...everyone has gone into so much detail about the cyanide question...

I just said if respiration is prevented, ATP is not produced so active transport can not take place...oops :P

that's what i put, everyone here seems to be over thinking it...
or it might just be me who is thinking too simple about it...

Reply 1181

Whatever9999

I didn't sit this exam ,but i've been watching this thread for a while ,and oh my god those bastards did it again ,and made a horrible paper filled with werid questions ,i hate AQA exam board so much ,and guess what ?i'm siting bio2 bio4 bio5 this summer ,woow just woow this really made me panic :frown:

if i don't do well ,there is no way i'm getting into uni ,so if they put weridly written questions my life is over ! :frown:

Reply 1182

thegodofgod

19

Original post by Tullia

I've just done some reading on it and it seems you're correct with what you've said.

As I say though, I didn't sit the exam and so don't know what information was given to work with and so cannot really comment.

My view that cyanide is a non-competitive inhibitor to most enzymes was just something that I seemed to take for granted.

You're always learning though. :smile:

I haven't done the paper either; just came on to see how the paper went and what sort of a paper might come up for Unit 2 next week :colondollar:

Reply 1183

Project Peace

Original post by Whatever9999

I didn't sit this exam ,but i've been watching this thread for a while ,and oh my god those bastards did it again ,and made a horrible paper filled with werid questions ,i hate AQA exam board so much ,and guess what ?i'm siting bio2 bio4 bio5 this summer ,woow just woow this really made me panic :frown:

if i don't do well ,there is no way i'm getting into uni ,so if they put weridly written questions my life is over ! :frown:

hey, don't worry. the best thing to do now is just improve on exam technique for your other bio modules. I am sitting bio2 this monday :rolleyes:

Reply 1184

ummy123

Original post by Monster Mnch

You have to use the amount of sodium ions that were used (6) then divide it by the amount of time (30 minutes). (4) is how much is left, it was asking how much units were used per minute.

oh well. 1 mark for working :redface:

2 marks.

Reply 1185

Scienceisgood

21

So, hold on a minute guys;

Do I get ANYTHING in this paper for saying co-transport, facilitated diffusion and lack of glucose uptake for the cyanide Q?! :confused:

Reply 1186

sconter

11

Original post by Scienceisgood

So, hold on a minute guys;

Do I get ANYTHING in this paper for saying co-transport, facilitated diffusion and lack of glucose uptake for the cyanide Q?! :confused:

find out in august. we are only taking an educated guess.

Reply 1187

chill543

Original post by Scienceisgood

So, hold on a minute guys;

Do I get ANYTHING in this paper for saying co-transport, facilitated diffusion and lack of glucose uptake for the cyanide Q?! :confused:

i dont think so, i thought cyanider stoped the metabolic processes, so could only stop atp production and stop active transport?

Reply 1188

AspiringDoctor

13

Original post by Reina

Wow...everyone has gone into so much detail about the cyanide question...

I just said if respiration is prevented, ATP is not produced so active transport can not take place...oops :P

That's what I put too :colondollar:

Reply 1189

umair.khan

Hi everyone, just been reading the posts on this thread and thought id share my opinion.

I did this exam aswell and it was a good paper i guess, but some of the people on this thread are giving answers (referring to the cyanide one) as an inhibitor. There was no info in the stem of the question that said that cyanide was an inhibitor.

Some of you are making the answers seem overly complicated, remember this is biol1 and the exam boardcan't complicate it that much. the answers are straight forward, the deep thought answers you can save for biol4 and 5 :tongue:

, btw im an A2 student :biggrin:

Also my teacher, who is an AQA biology examiner, said the answer to the cyanide question was respiration decreased then stopped, so no ATP is produced, so ATP is not available for active transport, so uptake of Na+ ions ceases.

Sorry for sounding abit harsh with some of my comment, but the deep thought answers on this thread just got to me lol

Reply 1190

choccandy21

4

Original post by thegodofgod

I haven't don the paper either; just came on to see how the paper went and what sort of a paper might come up for Unit 2 next week :colondollar:

hello

you're doing unit 2 too? I'm do nervous about it!

Reply 1191

thegodofgod

19

Original post by halii_94

hello

you're doing unit 2 too? I'm do nervous about it!

Yeah, got 110 UMS in June 11 (2 UMS / 1 raw mark below an A) :mad:

Reply 1192

Scienceisgood

21

Original post by umair.khan

Also my teacher, who is an AQA biology examiner, said the answer to the cyanide question was respiration decreased then stopped, so no ATP is produced, so ATP is not available for active transport, so uptake of Na+ ions ceases.

Sorry for sounding abit harsh with some of my comment, but the deep thought answers on this thread just got to me lol

Never mind. :frown:

I know now of 4 marks I have lost, first Q and cyanide Q. =(

I thought I would at least get a mark for saying one of the following;

Co-Transport
Facilitated diffusion
Lack of glucose uptake
Stop Respiration.

(edited 11 years ago)

Reply 1193

ecokid

1

Did anyone find the content to be really boring? I mean, i know it's an exam and you're not meant to find it stimulating but normally there's something interesting that makes me chuckle - like the idea of catfish blushing in BIO2's Jan paper, but there was nothing today. Out of all the papers since 09, this was probably the least inspired.

Reply 1194

Nucleo

Mark needed for 80UMS (A grade) for June series for past years:
2009: 40/60
2010: 45/60
2011: 45/60

What do you think... lower or higher this year ?

Reply 1195

Scienceisgood

21

Original post by ecokid

Did anyone find the content to be really boring? I mean, i know it's an exam and you're not meant to find it stimulating but normally there's something interesting that makes me chuckle - like the idea of catfish blushing in BIO2's Jan paper, but there was nothing today. Out of all the papers since 09, this was probably the least inspired.