Higher Biology Exam?!

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Reply 60

hello_world1234

Original post by Kh19

I put deoxyribose sugar? Is that the same thing?

Yeah it is :smile:

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Reply 61

JackoGeddes

for the phototropism one.. first bit was phototropism

something like the benefit of it to the plant i said ; able to curve towards light source needed for photosynthisis thus growth

and how it occurs was ; IAA destroyed by light, most IAA on the dark side so elongation occurs at that side which causes the plant to curve towards the direction of light

and the substance made by shoot tips was obviously; IAA.

Reply 62

JackoGeddes

and for the DNA one at the beggining - first box was hydrogen bonds break between base pairs
second box was - chemical bond form between phosphate of one nucleotide and deoxyribose of another giving it 'backbone'

help :P

Reply 63

Hype en Ecosse

Original post by Kh19

I put deoxyribose sugar? Is that the same thing?

Deoxyribose sugar is the best answer of all. :biggrin:

Original post by xoJennyox

Yep I know :smile:

. But the SQA want the word Deoxyribose on the paper and not just sugar!

The question consisted of a diagram of a nucleotide.

Understood, captain!

Reply 64

Kh19

Original post by Hype en Ecosse

Deoxyribose sugar is the best answer of all. :biggrin:

Understood, captain!

Woo!

Reply 65

lion542

What headings did you guys have for the osmoregulation headings?

*ERQ's

Original post by lion542

What headings did you guys have for the osmoregulation headings?

"Regulation of blood water concentration"
"Decrease in blood water concentration"
I panicked and done them haha.

See for DNA replication for number 4, did anyone write about strong sugar phosphate bonds forming between adjacent nucleotides? My mind went blank and I was like eh I'll write that haha

Reply 68

hello_world1234

Original post by JackoGeddes

Ahh I never wrote that hydrogen bonds broke, I just said that the DNA unzipped :frown:

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Reply 69

Kh19

Original post by danaa

Ahh I never wrote that hydrogen bonds broke, I just said that the DNA unzipped :frown:

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.

I put DNA unzips too!

Reply 70

hello_world1234

Original post by Kh19

.

I put DNA unzips too!

Did you say anything about the hydrogen bonds breaking tho?:/ hope just saying that it unzips is sufficient

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Reply 71

mwellno1

see for the first question of the written bit, did we get a mark each for phosphate and deoxyribose sugar or 1 point altogether ?

Reply 72

lion542

Original post by CSM1996

I only said Regulation of blood water concentration but put everything under it. You think I'll lose the coherence mark?

Reply 73

Nessie162

I'm pretty sure part 1 said that DNA unzips... that's why I wrote that hydrogen bonds break...

Reply 74

hello_world1234

Original post by mwellno1

see for the first question of the written bit, did we get a mark each for phosphate and deoxyribose sugar or 1 point altogether ?

It was a mark each was it not?:/ I cant quite remeber! What order did you put them, as in which did you write down first?:/

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Reply 75

hello_world1234

Original post by Nessie162

I'm pretty sure part 1 said that DNA unzips... that's why I wrote that hydrogen bonds break...

For part one it just said that the DNA uncoiled I think?:/

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Reply 76

CSM1996

Original post by lion542

I only said Regulation of blood water concentration but put everything under it. You think I'll lose the coherence mark?

I doubt it, they didn't specify anything so I doubt they could really take a mark of for that. It was only really one part to the question which I've never seen before in ma puff.

Reply 77

lion542

Original post by danaa

It was a mark each was it not?:/ I cant quite remeber! What order did you put them, as in which did you write down first?:/

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No I think it was 1 for both and then 1 for the bond.

Reply 78

hello_world1234

Original post by lion542

No I think it was 1 for both and then 1 for the bond.

Oh, my bad! Sorry!

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Reply 79

OliviaTurner

Original post by Gt1996

Well, that question was worded strangely

In the question it said work out how many hours the spend on average per MONTH but the answer part said hours per day

I remember getting 5 hours a day though?

I think that stumped everyone, what a lot of people didn't see was that it had 0.0 (start) and then (0.5) then went up in hours, so there was half an hour in the answer whereas everyone counted it as an hour!!!

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