**Higher level Biology 2012 Before/After**

hollingr

reznov wrote: »

No mitosis! Surprised. I forgot the damn purine for nitrogen base types. Bah. Ridiculuously little time for revision.

I thought they were just asking for the actual base pairs, as in guanine-cytosine
and then adenine-thymine?

FaoiSin

I said femur.

I used the Ag Science definition for Active Transport that they are moving against a concentration gradient. Overall a fairly weird paper in my opinion. Was grand though.

biohaiid

Mista wrote: »

Both. Photosynthesis question was really weird though

There was temperature effect on enzymes, leaf yeast, and another with a whole bunch of experiments.

Weird?
Do you not mean brilliant?
It was just reading it off a graph.

smithy77

finality wrote: »

I said femur. It's the LONGEST OF THE LONG, I should get bonus marks for it.

I think you're grand as long as you didn't say something like skull or vertebra. :L

edit: I mean, you could say ulna, radius, metatarsal...

What about humurous? thats a long bone:p

finality

Brianna Clean Drunkard wrote: »

I said active transport is where there is material constantly moving in and out of the cell i.e. it is the same concentration s to whatever else is around it. So I guess I got that wrong?

Yeah I'm afraid so, active transport is the movement of substances against a concentration gradient, requiring energy

leaveiton

finality wrote: »

I said femur. It's the LONGEST OF THE LONG, I should get bonus marks for it.

I think you're grand as long as you didn't say something like skull or vertebra. :L

edit: I mean, you could say ulna, radius, metatarsal...

I think that definitely warrants some bonus marks! :P

Now that you mention the vertebra that reminds me, did anyone answer that question on the nervous system, the part where it asked to distinguish between white and grey matter? All I said was "Grey matter is found on the outside of the brain. White matter is found on the inside. White matter is found on the outside of the spinal cord. Grey matter is found on the inside." Would that be okay or what? :P There are probably functions that I was forgetting but that was the extent of my knowledge.

Mista

biohaiid wrote: »

Weird?
Do you not mean brilliant?
It was just reading it off a graph.

Well yes, brilliant i admit :P But weird.. almost seems like a project maths style question

finality

hollingr wrote: »

I thought they were just asking for the actual base pairs, as in guanine-cytosine
and then adenine-thymine?

That was the second question

Chuchoter

NO MORE BIOLOGY EVER AGAIN :DDDD

That was grand, weird paper though. Lots of suggesting and making it up yourself

Hayezer

Gah mixed up the two bone parts in the short question, and mixed up the functions aswell :L.

Would I get marks for Active Transport with "Non-passive exchange process that requires energy" ?
Also anyone know what grey and white matter are? Overall, good paper I thought, hopefully A1

hollingr

Mista wrote: »

Well yes, brilliant i admit :P But weird.. almost seems like a project maths style question

here is dot a, and here is dot b. connect the two dots. (9 marks)

all that practise in senior infants finally pays off!!!!!

finality

leaveiton wrote: »

I think that definitely warrants some bonus marks! :P

Now that you mention the vertebra that reminds me, did anyone answer that question on the nervous system, the part where it asked to distinguish between white and grey matter? All I said was "Grey matter is found on the outside of the brain. White matter is found on the inside. White matter is found on the outside of the spinal cord. Grey matter is found on the inside." Would that be okay or what? :P There are probably functions that I was forgetting but that was the extent of my knowledge.

Grey matter is composed of dendrites and cell bodies, white matter is composed of axons only.

QueenOfLeon

leaveiton wrote: »

Now that you mention the vertebra that reminds me, did anyone answer that question on the nervous system, the part where it asked to distinguish between white and grey matter? All I said was "Grey matter is found on the outside of the brain. White matter is found on the inside. White matter is found on the outside of the spinal cord. Grey matter is found on the inside." Would that be okay or what? :P There are probably functions that I was forgetting but that was the extent of my knowledge.

If it was a description going for a few marks that would probably be a valid point. The main thing they were probably looking for was that white matter is made up of axons and grey matter is made up of cell bodies.

Hayezer

And lads for the ecology question you think they'll be generous with the marking scheme? Gonna be a whole loada answers, they can't really mark them wrong if they're logical

diarmo06

Ahh, Always think i've nailed it until i come home get on boards & see tthat i've read a host of questions wrong.. Name two nitrogenous bases... DURH TYPES :'/

Schonie

finality wrote: »

Grey matter is composed of dendrites and cell bodies, white matter is composed of axons only.

Oh no...I mixed them up:( I said grey was axons and white dendrites and cell bodies...gah:(

Cruel Sun

Hayezer wrote: »

And lads for the ecology question you think they'll be generous with the marking scheme? Gonna be a whole loada answers, they can't really mark them wrong if they're logical

I hope so.

smithy77

For the differences between amino acid and monosaccaride i answered:

'Amino acid contains nitrogen'

Thats correct right?

leaveiton

finality wrote: »

Grey matter is composed of dendrites and cell bodies, white matter is composed of axons only.

Ah well :P

Nazata

smithy77 wrote: »

For the differences between amino acid and monosaccaride i answered:

'Amino acid contains nitrogen'

Thats correct right?

Most definitely.

biohaiid

smithy77 wrote: »

For the differences between amino acid and monosaccaride i answered:

'Amino acid contains nitrogen'

Thats correct right?

Yep.

c28omzk7ihsxv0

I actually really like biology.

finality

Schonie wrote: »

Oh no...I mixed them up:( I said grey was axons and white dendrites and cell bodies...gah:(

I got it wrong in the exam too, I said grey matter was cell bodies and white was axons and dendrites... I hope they'll give me the marks for grey though, it's essentially right...

Hayezer

Thought the genetics question was pretty weird, for the linkage part about the genotype of the gametes that would be produced most, I didn't really put down the genotypes as in Big letter Small letter, I put down the drawings of the chromosomes with the letters on them, this ok?

biohaiid

diarmo06 wrote: »

Ahh, Always think i've nailed it until i come home get on boards & see tthat i've read a host of questions wrong.. Name two nitrogenous bases... DURH TYPES :'/

I just post what I thought of the papers really. I really would rather not know what I got wrong. :L

Hayezer

Anyone think they work out how many marks for grey and white matter? 6 marks hopefully :P!

smithy77

SS Yy x SS Yy ?

QueenOfLeon

Hayezer wrote: »

And lads for the ecology question you think they'll be generous with the marking scheme? Gonna be a whole loada answers, they can't really mark them wrong if they're logical

If your answers make sense and you've backed them up the marking scheme is usually generous. If you look back in previous years, for some questions the marking scheme just says "any valid answer" because there's such a range of answers that could have been given.

jibs

Mista wrote: »

I said it would be reflected as it wasn't being absorbed or something.

It is absorbed and it causes little photosynthesis. It's green that doesn't get absorbed, thats why plants are green.

c28omzk7ihsxv0

jibs wrote: »

It is absorbed and it causes little photosynthesis. It's green that doesn't get absorbed, thats why plants are green.

FUUUUUUUUUUUUUUUUUUUUUUUUUUP it anyway..... :mad:


What was the growth inhibitor used? (Experiments question)