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AQA Biology AS New Spec - 26th May and 7th June

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Reply 180

SANTR

Original post by CrazyFool229

Might have been two marks - One for identifying the correct test and one for the justification? Can't really remember!

Actually I remember, surprisingy it was a one marker.

Reply 181

laney1999

Original post by liziepie

I put that the extra thing before the fatty acid changed it's shape so it won't be complementary to the enzyme anymore, so no ES complexes would form.

Same! 😀

Reply 182

sharmonraja

What did everyone put for the uses of hydrolysis of ATP

Reply 183

Luchamb

Original post by SANTR

Yes 10 cm^3 of water. How many marks was it?
I didn't mention the part about 90cm^3 of inhibitor :frown:

Wasnt it 90 of water because it only wanted 1000 of 10000 so it was 100 divided by 10 for the concentration one

Reply 184

username2488725

Original post by SANTR

Yes 10 cm^3 of water. How many marks was it?
I didn't mention the part about 90cm^3 of inhibitor :frown:

Was it two marks? No idea. And someone else on the page before wrote an answer opposite to mine - No idea who is right.

Reply 185

Meat-Ball

I found the paper ok-ish. What annoyed me is how a lot of topics weren't on it. Lets hope the next paper is better.

Reply 186

laney1999

Original post by SANTR

Yes 10 cm^3 of water. How many marks was it?
I didn't mention the part about 90cm^3 of inhibitor :frown:

I put 10 of inhibitor 90 water

Reply 187

saulgreen

Original post by laney1999

10cm^3 inhibitor to 90cm^3 distilled water

think I put that too, can't even remember aha

Reply 188

Luchamb

Original post by sharmonraja

What did everyone put for the uses ofh ydrolysis of ATP

Phosphorylation and active transport

Reply 189

laney1999

Original post by Luchamb

Phosphorylation and active transport

Active transport and needed for respiration

Reply 190

username2488725

10 inhibitor and 90 water is correct. I just got confused when I made my other post on it - Sorry for the confusion

Reply 191

Hbassett26

Original post by laney1999

Active transport and needed for respiration

I think active transport was correct! But respiration makes ATP it isn't used in respiration so i put about how atp is also used in synthesis of molecules such as proteins in ribosomes

Reply 192

lilyjacks

for the question on Alzheimer's and it said why can it fit 2 active sites I said because antigen variability😂, was such a hard paper, what did everyone get for the ror at 10c I got 11

Reply 193

sharmonraja

Original post by Hbassett26

I think active transport was correct! But respiration makes ATP it isn't used in respiration so i put about how atp is also used in synthesis of molecules such as proteins in ribosomes

I said active transport and movement (ATP energy needed in muscle tissues), is that correct?

Reply 194

Hbassett26

Original post by lilyjacks

for the question on Alzheimer's and it said why can it fit 2 active sites I said because antigen variability😂, was such a hard paper, what did everyone get for the ror at 10c I got 11

Think I got 14.5 really depended on the tangent you drew so the exam board usually has quite a big range for what they'll allow you

Reply 195

sharmonraja

Original post by lilyjacks

for the question on Alzheimer's and it said why can it fit 2 active sites I said because antigen variability😂, was such a hard paper, what did everyone get for the ror at 10c I got 11

I said that the protein has two regions on it which is complementary to each enzyme

Reply 196

Hbassett26

Original post by sharmonraja

I said active transport and movement (ATP energy needed in muscle tissues), is that correct?

Yeah pretty sure that's ok

Reply 197

username2488725

Original post by lilyjacks

for the question on Alzheimer's and it said why can it fit 2 active sites I said because antigen variability😂, was such a hard paper, what did everyone get for the ror at 10c I got 11

I put down that they could have similar shaped active sites because only the secondary structure was affected as the only thing different was the fact one was Alpha and one was Beta, so the tertiary structure could be the same so it could be a similar 3D Shape for both.

Reply 198

saulgreen

Original post by SANTR

Yes 10 cm^3 of water. How many marks was it?
I didn't mention the part about 90cm^3 of inhibitor :frown:

I put 10cm3 of the inhibitor and 90cm3 of water to make 100cm3 of the inhibitor with a concentration of 1000 nmol dm-3. Because they started with 10000, so 10000 x 0.1 (90%) = 1000 and therefore you put 90cm3 of water - not the inhibitor. If you do it the other way round you are diluting it by 10% to get 9000 rather than by 90% to get 1000. I think thats right anyway... my maths sucks tbh