Qualification > Sciences
CHEM AND BIO HELP AND TIPS HERE
Raywin:
--- Quote from: aangel42 on June 07, 2010, 05:06:43 pm ---that sounded pretty experienced to me... lol
anyone think we'll get as hard a question as this tomorrow???
what is agar jelly specifically? how does foil prevent it? how does the jelly allow it?
--- End quote ---
I have the same Qs.. :D all i noe is tht agar jelly solidifies.. :/ but im not sure how it implys to this Q.
And i doubt well get this hard Qs tomoz, but hey who wants to take the risks? ;)
Vin:
--- Quote from: weaam on June 07, 2010, 04:31:08 pm ---*Ehem*Ehem* Please ::)
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REALLY SORRY FOR THE DELAY I was having my dinner... :-[
29) Difficult to explain .. tried my best..Drawing a punett square would make life easier.. Q. says n.blindness is caused by a dominant allele. If we take them to be N-dominant and n-recessive
then..attached
35) Decomposers always produce CO2 and H2O while decomposing and NOT N2
37) B,
opt. A belongs to only to water cycle
opt. C is neither
opt.D is again water cycle
EDIT:: Image slightly modified.
Vin:
--- Quote from: weaam on June 07, 2010, 05:00:58 pm ---Pretty pleasse! :-*
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SORRY check my post^^ https://studentforums.biz/index.php/topic,1411.msg259616.html#msg259616
Airhead:
--- Quote from: aangel42 on June 07, 2010, 05:06:43 pm ---that sounded pretty experienced to me... lol
anyone think we'll get as hard a question as this tomorrow???
what is agar jelly specifically? how does foil prevent it? how does the jelly allow it?
--- End quote ---
Haha, thanks :)
I just know that agar jelly is used to grow plants artificially in laboratories, so it can absorb chemical substances. That's how it allows the auxin to pass through. Foil is pretty much impermeable, so I assume it wouldn't let auxin get through.
You could check this out if you want a more detailed description though:
http://en.wikipedia.org/wiki/Agar
Raywin:
--- Quote from: Airhead on June 07, 2010, 05:11:10 pm ---Haha, thanks :)
I just know that agar jelly is used to grow plants artificially in laboratories, so it can absorb chemical substances. That's how it allows the auxin to pass through. Foil is pretty much impermeable, so I assume it wouldn't let auxin get through.
You could check this out if you want a more detailed description though:
http://en.wikipedia.org/wiki/Agar
--- End quote ---
Thx ;) +rep
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