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Author Topic: CHEM AND BIO HELP AND TIPS HERE  (Read 350877 times)

Offline Shazizzzle

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3195 on: June 07, 2010, 07:57:28 pm »
Quote from: ~VIN1094~ on June 07, 2010, 07:55:34 pm
Arteries and veins are BLOOD VESSELS

Blood cannot be a tissue, though it may have RBCs or WBCs, collection if cells as you say.. they don't really "join up" to do specific tasks. Let's just say the blood is a mixture of cells, ions etc. etc.

So... an artery is a tissue? Or an organ?
Tissue, right?
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Offline Vin

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3196 on: June 07, 2010, 07:58:47 pm »
Quote from: Shazizzzle on June 07, 2010, 07:53:46 pm
Umm, M/J 2000, P1,  Q 27.
How is the answer D?
Shouldn't it be C, because the foliage leaves have begun to develop, and as soon as they do, photosynthesis starts, thus increasing the mass.
Though there is also a possibility that the production and usage is at equilibrium, because they plant is still growing, so the is making use of the resources?
But, point is, the increase should start as leaves have formed, and that is C.
???

Can you like, post the paper/question/which page is it from the big 350 paged pdf? Would be great help.. :)
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Offline Ivo

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3197 on: June 07, 2010, 08:00:19 pm »
Quote from: ~VIN1094~ on June 07, 2010, 07:41:55 pm
Don't really break your head because its not it the syllabus! ;)

What?  I thought there was stuff about auxin?
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"In helping others, we shall help ourselves, for whatever good we give out completes the circle and comes back to us."

Offline the_grim_reaper

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3198 on: June 07, 2010, 08:02:25 pm »
Quote from: ~VIN1094~ on June 07, 2010, 07:55:34 pm
Arteries and veins are BLOOD VESSELS

Blood cannot be a tissue, though it may have RBCs or WBCs, collection if cells as you say.. they don't really "join up" to do specific tasks. Let's just say the blood is a mixture of cells, ions etc. etc.

You seem right VIN but we had that dumb question in our mocks. It was from GCE and it called blood to be a tissue I think. Not really sure of the year. Anyway, screw it. GCE doesn't count :D :D. But about an artery, isn't it a tissue?? Cause I came across a question in MJ 00 that called it an organ. (the mark scheme for those years is just downright nuts...). Just 3 pm tomorrow and after that no force other then that of God can force me to study for at least 6 weeks. Fifa 2010 here I come!!!!!
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Offline Ivo

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3199 on: June 07, 2010, 08:03:22 pm »
Quote from: deadman786 on June 07, 2010, 08:02:25 pm
You seem right VIN but we had that dumb question in our mocks. It was from GCE and it called blood to be a tissue I think. Not really sure of the year. Anyway, screw it. GCE doesn't count :D :D. But about an artery, isn't it a tissue?? Cause I came across a question in MJ 00 that called it an organ. (the mark scheme for those years is just downright nuts...). Just 3 pm tomorrow and after that no force other then that of God can force me to study for at least 6 weeks. Fifa 2010 here I come!!!!!

I play FIFA10 as well, it' so fun.

By the way, past paper said artery is organ?
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Always willing to help!  8)
"In helping others, we shall help ourselves, for whatever good we give out completes the circle and comes back to us."

Offline 8T

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3200 on: June 07, 2010, 08:04:32 pm »
Quote from: ~VIN1094~ on June 07, 2010, 07:11:07 pm
D
B
B

want explanation?
Yes please for 7 & 8 if possible :)
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Offline Vin

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3201 on: June 07, 2010, 08:04:42 pm »
Quote from: Shazizzzle on June 07, 2010, 07:57:28 pm
So... an artery is a tissue? Or an organ?
Tissue, right?

Um, I'm not sure because they are different compositions of elastic and muscle tissue, so I don't know if they are called tissue alone. They are usually referred to as blood vessels. There are different arteries with different compositions of elastic and muscle tissue, like pulmonary artery and a normal artery (I don't know any other arteries).
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Offline SNA

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3202 on: June 07, 2010, 08:05:49 pm »
Quote from: ~VIN1094~ on June 07, 2010, 07:55:34 pm
Arteries and veins are BLOOD VESSELS

Blood cannot be a tissue, though it may have RBCs or WBCs, collection if cells as you say.. they don't really "join up" to do specific tasks. Let's just say the blood is a mixture of cells, ions etc. etc.
then,can we say blood to be a system?
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Offline NidZ- Hero

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3203 on: June 07, 2010, 08:06:26 pm »
Quote from: aangel42 on June 07, 2010, 04:09:54 pm
X and Z?
Or maybe the metal foil would reflect the light or mess it up or something, so only X?
Maybe the agar jelly is too heavy? Or maybe it makes no difference and Y too?
I DON'T KNOW  :'(  :'(  :'(  :'(  :'(  :'(
X, Y Z
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Offline Vin

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3204 on: June 07, 2010, 08:12:05 pm »
Quote from: 8T on June 07, 2010, 08:04:32 pm
Yes please for 7 & 8 if possible :)

Got 4 right? Always more auxin is on the darker side.

7th ::::

Quote from: ~VIN1094~ on June 07, 2010, 07:41:55 pm

Don't really break your head because its not it the syllabus! ;)

Quote from: ~VIN1094~ on June 07, 2010, 07:50:48 pm

LOL ... This is what I can't understand too. Anyway, apparently the explanation is :: The sugar agar allows the auxin to pass through as it is organic and the metal doesn't.


OK 8 ) Auxin always go away from light and multiply cells in that region. This results in the bending of the plant due to excessive growth.


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Offline Vin

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3205 on: June 07, 2010, 08:16:38 pm »
Quote from: SNA on June 07, 2010, 08:05:49 pm
then,can we say blood to be a system?

OK you are confusing me and yourself :P

Circulatory System

Arteries and veins : Blood Vessels (which carry blood), they are simply combination of muscles and tissues.

Blood : Medium of transportation throughout the body.
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Offline aangel42

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3206 on: June 07, 2010, 08:17:15 pm »
Quote from: ~VIN1094~ on June 07, 2010, 07:58:47 pm
Can you like, post the paper/question/which page is it from the big 350 paged pdf? Would be great help.. :)

M/J 2000 question 27, page 208/351.
I don't get it either.
It's such a vaguely worded question for which ANY of the choices could be the right answer.
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Offline Vin

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3207 on: June 07, 2010, 08:20:55 pm »
Quote from: aangel42 on June 07, 2010, 08:17:15 pm
M/J 2000 question 27, page 208/351.
I don't get it either.
It's such a vaguely worded question for which ANY of the choices could be the right answer.

What is the answer? Is it D?
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Offline the_grim_reaper

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3208 on: June 07, 2010, 08:27:12 pm »
Quote from: ~VIN1094~ on June 07, 2010, 08:20:55 pm
What is the answer? Is it D?

Yes but why!! It should be C in my view. I mean the folliage leaves photosynthesise don't they???
Anyway,

Well after some searching, I've come across this...

http://wiki.answers.com/Q/Is_blood_concidered_a_connective_type_tissue

the only thing I get is that blood is some sort of a tissue. Plus they're calling artery to be the same type (connective?) tissue. AHHHH!!!! I hate Bio!!! Why did I choose this subject!!!!

@ Ivo YOU play Fifa 2010??? Surprising. I suppose you're a girl (guessing from you avatar). Not many girls I know like it lol. My sister never plays it with me cause I beat here with scores like 3-0 or 5-0 loool :D...
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Offline thisishard

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3209 on: June 07, 2010, 08:30:08 pm »
does anyone have markscheme for bio unit 2 speciman papers ! fast reply please!
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