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Author Topic: BIOLOGY P32 DISCUSSION ONLY ( AS LEVEL )  (Read 13182 times)

Offline examfreak

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Re: BIOLOGY P32 DISCUSSION ONLY ( AS LEVEL )
« Reply #45 on: June 01, 2009, 06:11:04 pm »
is there any difference between the transverese section of a dicot and a monocot?
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Offline pikutata

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Re: BIOLOGY P32 DISCUSSION ONLY ( AS LEVEL )
« Reply #46 on: June 01, 2009, 06:13:53 pm »
Quote from: examfreak on June 01, 2009, 06:11:04 pm
is there any difference between the transverese section of a dicot and a monocot?

monocot leaf:
dicot:
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Offline musicfreak

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Re: BIOLOGY P32 DISCUSSION ONLY ( AS LEVEL )
« Reply #47 on: June 01, 2009, 06:22:45 pm »
mono cot has gaurd cells on both upper and lowe epidermis
but diocot only hs on the lower epidermis
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Offline blablabla17

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Re: BIOLOGY P32 DISCUSSION ONLY ( AS LEVEL )
« Reply #48 on: June 01, 2009, 06:29:49 pm »
hey...if it's a plan diagram...can we draw the stomata?
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Offline hacker911

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Re: BIOLOGY P32 DISCUSSION ONLY ( AS LEVEL )
« Reply #49 on: June 01, 2009, 06:30:39 pm »
NaCl with yeast mite come.....iv bin gettin info from many ppl sayin its gonna come........Yeast produces CO2 (which reduces PH) by respiration.......NaCl disrupts the osmotic balance and reduces yeast growth....thus less CO2 wiull be produced and PH drop will be less.............the question mite tel us to test different concentrations of NaCl and record the number of bubbles in a specific time and the PH drop at every concentration......it mite ask to draw a graph and put forward a conclusion....
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Offline hacker911

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Re: BIOLOGY P32 DISCUSSION ONLY ( AS LEVEL )
« Reply #50 on: June 01, 2009, 06:39:35 pm »
By reason for xerophytes i meant that it could ask abt the visible adaptations for low transpiration in the slide and the reasons how its slows water loss...........

PLAN DIAGRAMS ONLY HAVE LINES TO SHOW DIFFERENT TISSUES....U CANNOT AND SHOULD NOT DRAW GUARD CELLS.....however, i usually leave blank spaces in lines to show presence of stomata.........here in monocots...stoma'll b present on both upper n lower surfaces....

Yea....concentration of NaCl increase......PH drop decreases......and number of bubbles decreases.....but watch out for it in the practical....
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Offline blablabla17

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Re: BIOLOGY P32 DISCUSSION ONLY ( AS LEVEL )
« Reply #51 on: June 01, 2009, 06:46:09 pm »
shyt...

wrong...

i dunno how to use the line to draw...

any one help please...

draw out a plan diagram with guard cell on both epidermis please...

thanks
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Offline bottlerockets

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Re: BIOLOGY P32 DISCUSSION ONLY ( AS LEVEL )
« Reply #52 on: June 01, 2009, 06:47:06 pm »
Quote from: blablabla17 on June 01, 2009, 06:44:49 pm
Quote from: hacker911 on June 01, 2009, 06:39:35 pm
By reason for xerophytes i meant that it could ask abt the visible adaptations for low transpiration in the slide and the reasons how its slows water loss...........

PLAN DIAGRAMS ONLY HAVE LINES TO SHOW DIFFERENT TISSUES....U CANNOT AND SHOULD NOT DRAW GUARD CELLS.....however, i usually leave blank spaces in lines to show presence of stomata.........here in monocots...stoma'll b present on both upper n lower surfaces....

Yea....concentration of NaCl increase......PH drop decreases......and number of bubbles decreases.....but watch out for it in the practical....



ok thanks...
\
   

   









     



is it something like this?




Woah. SO many lines.   :o
I don't think you need to incorporate so many lines into your plan drawing, if you'll look back, someone has drawn the lines for it, I think that person was right.
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Offline hacker911

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Re: BIOLOGY P32 DISCUSSION ONLY ( AS LEVEL )
« Reply #53 on: June 01, 2009, 06:48:03 pm »
L0l yea....sumthin like dat........just take it easy on the lines.....

__________________ _______________ ______________ ________________
_________________________________________________________________




_________________________________________________________________






_________________________________________________________________
_________________________________________________________________
__________ ________________ _________ ___________ ________________
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Offline blablabla17

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Re: BIOLOGY P32 DISCUSSION ONLY ( AS LEVEL )
« Reply #54 on: June 01, 2009, 06:49:45 pm »
not i want to draw so many lines...


it's i dunno how to use the line here to draw...


LOL...

anyway...

the one he drew...does nt have guard cell...

i want to include guard cell like what harker said...
you can put spaces in between to show guard cells present...

anyone wanna show how to draw?
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Offline blablabla17

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Re: BIOLOGY P32 DISCUSSION ONLY ( AS LEVEL )
« Reply #55 on: June 01, 2009, 06:51:06 pm »
Quote from: hacker911 on June 01, 2009, 06:48:03 pm
L0l yea....sumthin like dat........just take it easy on the lines.....

__________________ _______________ ______________ ________________
_________________________________________________________________




_________________________________________________________________






_________________________________________________________________
_________________________________________________________________
__________ ________________ _________ ___________ ________________



why urs doesnt have cuticle layer on top?

and why is there another extra layer after the spongy and before the lower epi?

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Offline blablabla17

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Re: BIOLOGY P32 DISCUSSION ONLY ( AS LEVEL )
« Reply #56 on: June 01, 2009, 06:58:11 pm »
hacker...

can we draw the vascular bundle as a circle...

to show it's present?

but no the individual cells in it...
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Offline hacker911

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Re: BIOLOGY P32 DISCUSSION ONLY ( AS LEVEL )
« Reply #57 on: June 01, 2009, 07:01:03 pm »
umm...i jus misplaced the layers........

__________________________________________________          cuticle
________ _____________ __________ _________________
                                                                                          Upper epidermis
__________________________________________________


                                                                                          Palisade


__________________________________________________





                                                                                          Spongy


___________________________________________________
                                                                                          Lower epidermis
______ _________ ___________ __________ ____________
___________________________________________________        Cuticle...........


Is this rite.... :P
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Offline bottlerockets

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Re: BIOLOGY P32 DISCUSSION ONLY ( AS LEVEL )
« Reply #58 on: June 01, 2009, 07:02:42 pm »
Quote from: hacker911 on June 01, 2009, 07:01:03 pm
umm...i jus misplaced the layers........

__________________________________________________          cuticle
________ _____________ __________ _________________
                                                                                          Upper epidermis
__________________________________________________


                                                                                          Palisade


__________________________________________________





                                                                                          Spongy


___________________________________________________
                                                                                          Lower epidermis
______ _________ ___________ __________ ____________
___________________________________________________        Cuticle...........


Is this rite.... :P



Yeah, this is right. I mean, this is how you draw a plan diagram.
But how do you show the stomatal pore? Or will that be a separate part to the question?
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Offline hacker911

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Re: BIOLOGY P32 DISCUSSION ONLY ( AS LEVEL )
« Reply #59 on: June 01, 2009, 07:06:12 pm »
@ bottlerockets..................presence of stomatal pores imply absence of lower epidermis........so i usually leave spaces in the epidermis...u cant draw guard cells because its not a tissue....

@ blablabla........................yea, u hav to draw vascular bundles where required as circles.....not perfect circles but u have to make three or four portions of it.....namely....xylem, cambium, phloem n then sclerenchyma(if present)...hope it helps... :)
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