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CHEM AND BIO HELP AND TIPS HERE

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Ivo:
Also, why do epidermal cells contain no chloroplasts?

And so it looks like (from past papers) that artery is an organ then.  How odd!  I thought it was a tissue. 

Xylem tubes have no end walls?  What are end walls?

The Golden Girl =D:

--- Quote from: Ivo on June 07, 2010, 11:46:03 pm ---Also, why do epidermal cells contain no chloroplasts?

And so it looks like (from past papers) that artery is an organ then.  How odd!  I thought it was a tissue.  

Xylem tubes have no end walls?  What are end walls?

--- End quote ---


end walls is like a barrier that stops smthn from passin ..and in xylem there is no in order to transport water and salts up to the leaves .

nah it is an organ ...but if they point at a part of it then it's a tissue ;)

in order for the palisade cells to receive max light intesity to photosynthesize   then the epidermis is transparent hence no chloropasts ;)

got it ?

SNA:

--- Quote from: ~!Intoxication!~ on June 07, 2010, 11:44:11 pm ---Purple you fav. colour?

--- End quote ---
yup! again! ;D
haha..its actually pink and purple,but the pink colour is too light!hard for people to c! :)
hm..let me guess your..maybe black or dark blue i suppose?haha..or orange!!!wait...maybe white!
did i get any correct? ??? haha..

Vin:

--- Quote from: SNA on June 07, 2010, 11:49:25 pm ---yup! again! ;D
haha..its actually pink and purple,but the pink colour is too light!hard for people to c! :)
hm..let me guess your..maybe black or dark blue i suppose?haha..or orange!!!wait...maybe white!
did i get any correct? ??? haha..

--- End quote ---

yea pink is too light..

Black and orange! :D nice guess!.. :)

the_grim_reaper:
Black, black and nothing but black!!!!!!!!!!!!!!!!! The colour of elegance!!!

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