** 2013 Biology HL Before/After **

weirdspider

Lucan Bohs wrote: »

Same. I wonder if secondary sexual characteristics is needed for full marks?!

Well like secondary characteristics of what? I'd say it would be needed but if its particularly badly answered you'd probably only lose 1/2 marks if 5 were going for it

Lucan Bohs

Explain why hormonal responses are slower than nervous responses?

kevin12345

Lucan Bohs wrote: »

Explain why hormonal responses are slower than nervous responses?

I said because they were carried by blood, where as nervous responses are sent along quick electrical impulses throughout the CNS?

weirdspider

Lucan Bohs wrote: »

Explain why hormonal responses are slower than nervous responses?

Must be carried by the blood to the area where they will have an effect. The electric impulses generated by the nervous systems initiate an immediate reaction

shawki

Lucan Bohs wrote: »

Explain why hormonal responses are slower than nervous responses?

Hormonal are chemical, nervous are electrical which is faster

weirdspider

Gaahh I need to get off this thread and stop procrastinating for French!

woopah92

aimzLc2 wrote: »

nope in revise wise it is just secondary trait or characteristic

Revise wise isnt the SEC marking scheme though

aimzLc2

woopah92 wrote: »

Revise wise isnt the SEC marking scheme though

yea true.. but the info is very accurate and corresponds to the marking scheme , the question about traits will not be worth many marks but i am sure secondary traits will be full marks

11Charlie11

I said secondary sex characteristics.. Does that count?

Vito Corleone

I would have thought the question implied sexual, I mean, what else would you be referring to? Secondary characteristics of the Mezzogiorno? :pac:

HugsiePie

I've decided. I'm unhappy with my paper and wish I could do it over.

I really needed an A, for me. I'll be expecting the B on results day but I'll still be absolutely gutted when I see it.

(If its a C I'm repeating, no ifs or buts about it)

MissD93

:eek: I thought i did a really good paper before i seen this thread

Peaceoutdude

I was just wondering ya know when they ask you for a reason if you give 2 do you loose marks?

Lucan Bohs

Name a plant growth regulator that promotes growth and give a precise location for a site of its action. - I said iaa and root tip


Through which part of a stem are growth promoters transported - I said meristem

HugsiePie

MissD93 wrote: »

:eek: I thought i did a really good paper before i seen this thread

Yep, Boards will that to you :rolleyes:;)

Eva213

Will there be the answers available online anywhere soon?

aguywholikes

INEEDSTOKNOW! What were we supposed to do for the heat denaturization graph??

ladymacbeth

Lucan Bohs wrote: »

Name a plant growth regulator that promotes growth and give a precise location for a site of its action. - I said iaa and root tip


Through which part of a stem are growth promoters transported - I said meristem

I said Auxin and the root and shoot cells.
Transported in the phloem

I liked the paper. I'm still hoping I got an A1 considering I answered every question comfortably.

ladymacbeth

Eva213 wrote: »

Will there be the answers available online anywhere soon?

The official marking schemes come out in August me thinks

aguywholikes

Lucan Bohs wrote: »

Name a plant growth regulator that promotes growth and give a precise location for a site of its action. - I said iaa and root tip


Through which part of a stem are growth promoters transported - I said meristem

I said Vasculer tissue (Xylem)..pretty sure that's right

HugsiePie

aguywholikes wrote: »

INEEDSTOKNOW! What were we supposed to do for the heat denaturization graph??

I did a graph from my book, continuous line going upwards, stops at 25 degrees and then starts to decline (nit sure if 25 degrees is optimum temperature for plants though)

ahmdoda

man i cant believe i missed that stuff about puberty i wrote: a person is said to have entered teenage year when this happen. ahhhhhhhhhhhhh

bluejay14

It was just a very unusual paper overall.

I'm not saying that I knew any of the systems/unit 3 very well but I would have liked to see more questions on them because they usually aren't too bad. Despite my dislike of photosynthesis, I was actually very pleased with that question, it was fairly straight forward, no waffle like there was in some of the other questions. The reproduction question wasn't too bad either considering it was one of the chapters I wasn't too sure of. We will never have to describe the process of birth again, thank god!

HugsiePie

Deleted User wrote: »

I liked the paper. I'm still hoping I got an A1 considering I answered every question comfortably.

*sigh*

aguywholikes

Crap. I hope saying xylem after vasculer tissue dosn't cancel out the right answer??

Vito Corleone

I said it was transported in the xylem.

aguywholikes

HugsiePie wrote: »

I did a graph from my book, continuous line going upwards, stops at 25 degrees and then starts to decline (nit sure if 25 degrees is optimum temperature for plants though)

Isn't that the effect of temperature graph? I SUSPECT they might have ****ed that one up.

HugsiePie

aguywholikes wrote: »

Isn't that the effect of temperature graph? I SUSPECT they might have ****ed that one up.

More likely I fecked it up

ladymacbeth

Phloem