Competition - post a photo you've taken of nature >>

Higher Biology 2012 Discussion

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Reply 320

mimx

Original post by Imfeelingthis

CAn somebody quote me the correct Mc's please? :smile:

Original post by mimx

Multiple choice scan:

http://www.sendspace.com/file/2h6okm

Answers:

1. B
2. A
3. A
4. D
5. A
6. B
7. C
8. C
9. D
10. D
11. C
12. C
13. D
14. A
15. B
16. A
17. B
18. B
19. C
20. B
21. B
22. C
23. A
24. D
25. B
26. D
27. C
28. D
29. A
30. C

^^^

Reply 321

daisyclouds

phytoalexins are definitely plants, its in the really old textbook i used :P i thought you could write resin or insect gall? seeing they are both isolating the area damaged?

Reply 322

OpenArms

Original post by spagan_

my computer keeps blocking it and so will not let me open :frown:

someone please upload multiple choice as an attachment? :smile:

Don't say I'm not good to you :wink:

EDIT: They may look small but click on them then zoom in.

(edited 11 years ago)

Does anyone have the answers to the exam??

Reply 324

mmcc123

Original post by mimx

^^^

Are these the actual answers or your answers?

Reply 325

mimx

Original post by daisyclouds

phytoalexins are definitely plants, its in the really old textbook i used :P i thought you could write resin or insect gall? seeing they are both isolating the area damaged?

Well they ask for a 'substance' so I think resin will be the only one they'll take. Insect galls are more growths than a substance.

Reply 326

mimx

Original post by mmcc123

Are these the actual answers or your answers?

Mine but agreed on by a couple of others and an apparent Biology teacher.

Reply 327

spagan_

Original post by OpenArms

Don't say I'm not good to you :wink:

EDIT: They may look small but click on them then zoom in.

thank you so much!!! turns out i got 26/30 :smile:

Reply 328

OpenArms

Original post by spagan_

thank you so much!!! turns out i got 26/30 :smile:

one better than me :mad:

Well done! :rolleyes:

Reply 329

pinkpaper94

Original post by mimx

Not sure. It will discourage grazing, but I don't think it's actually toxic to herbivores - it just tastes bad. Not sure if that will make a difference though so you might get it.

I learned that nicotine just discourages insect attack so i didn't write that...

Reply 330

mimx

Original post by pinkpaper94

I learned that nicotine just discourages insect attack so i didn't write that...

Insects can be herbivores :smile:

Reply 331

mmcc123

Original post by mimx

Mine but agreed on by a couple of others and an apparent Biology teacher.

I got the same apart from

8. B
11. B
20. C
21. C
26. C

I know how to do % calcs but for 21 i just couldn't get any of the percentages given so I just guessed!!

Reply 332

pinkpaper94

Original post by mimx

Insects can be herbivores :smile:

I didn't think of that... that is actually weird now that I think about it :colondollar:

Reply 333

pinkpaper94

I think I am sitting around 65%, hope that is enough for a B :smile:

Reply 334

Imfeelingthis

Original post by mimx

^^^

Thanks!

Reply 335

Imfeelingthis

Has anybody got the marks for the essay question about mitochondrion and cytochrome system? :smile:

Reply 336

Imfeelingthis

And what % do you think an A will be this year? :/

Reply 337

JackoGeddes

Guys please someone asure me, i did it all in pencil the woman muttered something 5 minutes in to do with pen but i was kinda busy.

think i got 70% going over paper with answers posted here, i'd be ****ing enraged if they didn't mark it when i got an A?!

Reply 338

qwerty1507

Original post by Imfeelingthis

Has anybody got the marks for the essay question about mitochondrion and cytochrome system? :smile:

Not a marking scheme but here is what I put which parts of were confirmed with my teacher afterwards:

•

Mitochondria contains a double membrane, cristae and the fluid-filled central matrix

•

Cristae is site of cytochrome system and provides a large surface are for these respiritory processes

•

Central matrix is site of Krebs cycle

•

NO MENTION OF GLYCOLYSIS

•

Hydrogen is brought into cytochrome by the hydrogen carrier NAD

•

This hydrogen drives the production of 36 ATP from 36 ADP + 36 Pi

•

Oxygen acts as final hydrogen acceptor and produces water

I need to emphasise that this is by no means a marking scheme and there will be more to it than this I'd imagine but those are basic points.

(edited 11 years ago)

Reply 339

mammy

Original post by mimx

Full paper scan:

http://www.sendspace.com/file/1khqvz

Make sure you click on 'click here to start download from sendspace'.

Cant see the short anwer questions could someone please put them up in picture format would be very very grateful!!!