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Author Topic: CHEM AND BIO HELP AND TIPS HERE  (Read 356788 times)

Offline MasterMath

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3270 on: June 07, 2010, 10:33:39 pm »
Quote from: the golden girl on June 07, 2010, 10:32:25 pm
well then go study ,what r u doin here :P :P :P
I dunno , i started my holiday already.. and i never have any problems with math.. just find it REALLY easy >_< .. just gunna do one past paper tomorrow then im done :P wohoo
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Offline the_grim_reaper

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3271 on: June 07, 2010, 10:34:03 pm »
Quote from: the golden girl on June 07, 2010, 10:31:41 pm

u kno we can make a team so that we take our revenge without troublin anyone u kno
i've already teamed up with some

*shhh don't tell the CIE * :P .lol  ::)

hahaha it's just a joke. LOL. Not that I'm ever going to sue anyone. Surely not CIE. If they give me 5A*s, then God Save the Queen!!!!
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Offline SNA

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3272 on: June 07, 2010, 10:34:25 pm »
Quote from: Ivo on June 07, 2010, 10:29:18 pm
I'm kinda confused.  But surely if it was B (it is), then the grandparents will have genotype of Nn.  If you cross them, it will be Nn * Nn, which will give offspring: NN, Nn, Nn, nn.  But that's 3:1, but it shows 1:1 in the diagram.

Majorly confused.
yea...i got confused too and honestly, i do not know how to explain it!i just crossed out all the answers that i was sure it was impossible and it left me with B..somebody help us!
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Offline The Golden Girl =D

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3273 on: June 07, 2010, 10:34:50 pm »
Quote from: MasterMath on June 07, 2010, 10:33:39 pm
I dunno , i started my holiday already.. and i never have any problems with math.. just find it REALLY easy >_< .. just gunna do one past paper tomorrow then im done :P wohoo

me too lol


grim , iwas kiddin loooooooooooooool
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Offline the_grim_reaper

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3274 on: June 07, 2010, 10:37:37 pm »
Quote from: Ivo on June 07, 2010, 10:29:18 pm
I'm kinda confused.  But surely if it was B (it is), then the grandparents will have genotype of Nn.  If you cross them, it will be Nn * Nn, which will give offspring: NN, Nn, Nn, nn.  But that's 3:1, but it shows 1:1 in the diagram.

Majorly confused.

Listen, listen Ivo you are majorly confused. Yes. See the ratios of male:female is always 1:1 but here you don't have it!!! It's different. It's just a matter of eliminating the wrong ones here. See C and D are definitely not correct. A can't be too either cause you won't have dominant individuals in that situation. So only B is left ;D. Just relax. Listen to Eminem lol and then start again :D :D :D....
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Offline SNA

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3275 on: June 07, 2010, 10:37:58 pm »
Quote from: Ivo on June 07, 2010, 10:29:18 pm
I'm kinda confused.  But surely if it was B (it is), then the grandparents will have genotype of Nn.  If you cross them, it will be Nn * Nn, which will give offspring: NN, Nn, Nn, nn.  But that's 3:1, but it shows 1:1 in the diagram.

Majorly confused.
By the way, why is the first doubt the answer excretion?
doesnt respiration remove co2 also?
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Offline the_grim_reaper

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3276 on: June 07, 2010, 10:40:19 pm »
Quote from: SNA on June 07, 2010, 10:37:58 pm
By the way, why is the first doubt the answer excretion?
doesnt respiration remove co2 also?

Lady where are you!!!! Respiration PRODUCES IT!!! It doesn't remove it. You really need to listen to Eminem lol :D :D :D :D.....
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Offline SNA

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3277 on: June 07, 2010, 10:43:54 pm »
Quote from: the_grim_reaper on June 07, 2010, 10:40:19 pm
Lady where are you!!!! Respiration PRODUCES IT!!! It doesn't remove it. You really need to listen to Eminem lol :D :D :D :D.....
haha..thanks!
its almost 2am here.
im too scared to listen to eminem or any other music at this hour! :P
no...seriously, im afraid =,=
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Offline NidZ- Hero

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3278 on: June 07, 2010, 10:44:37 pm »
Quote from: ~!Intoxication!~ on June 07, 2010, 08:20:55 pm
What is the answer? Is it D?
can u plz post question ppr it appear 2 damge in freexam :) :)
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Offline the_grim_reaper

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3279 on: June 07, 2010, 10:47:11 pm »
Quote from: SNA on June 07, 2010, 10:43:54 pm
haha..thanks!
its almost 2am here.
im too scared to listen to eminem or any other music at this hour! :P
no...seriously, im afraid =,=

Don't worry. I'll listen to your share of music :D :D.....
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Offline Ivo

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3280 on: June 07, 2010, 10:50:35 pm »
Hard doubt, please
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Offline The InViSiBlE GIrl (Eva)

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3281 on: June 07, 2010, 10:51:46 pm »
The answer is Mineral Salts for sure

Quote from: Ivo on June 07, 2010, 10:50:35 pm
Hard doubt, please

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Offline The InViSiBlE GIrl (Eva)

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3282 on: June 07, 2010, 10:54:59 pm »
Hey guys plzzzzzz can someone plzz tell me all the answers for the MAY/JUNE 2004 Ppr 1. I looked up the answer in the markscheme on freeexam and on extreme papers but all the answers r wrong even the ones that im 100% sure are right. The MS is giving the wrong answers!! Can someone put it up hurry exam start in like 6 hrs  :-[ :'(
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Offline SNA

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3283 on: June 07, 2010, 10:55:10 pm »
Quote from: Dizzy on June 07, 2010, 10:51:46 pm
The answer is Mineral Salts for sure

isnt it nitrogen? from the nitrogenous wastes?
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Offline the_grim_reaper

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3284 on: June 07, 2010, 10:56:02 pm »
Quote from: Dizzy on June 07, 2010, 10:51:46 pm
The answer is Mineral Salts for sure


Yep I'm with you on this one. See Ivo decaying doesn't produce proteins lol. It doesn't make nitrogen or oxygen. It makes ammonium which is converted to nitrate (in other words the final product is nitrates). And nitrates are mineral salts :D..
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