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Home Q & A Board Biology-Related Homework Help Zoology and Botany (Moderator: ehd123)
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oapplesauce oapplesauce
wrote...
12 years ago
My lecture notes say that phloem and xylem are plant tissue. But isn't plant tissue like parenchyma, collenchyma and sclernchyma cells. I read somewhere that xylem and phloem actually contain these cells in different amounts. So is it incorrect to say that they are plant tissue?

Also could someone pleaes tell me what is meant by 'supporting tissue'??
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wrote...
#1
12 years ago
I believe phloem are dead cells since it allows water and nutients to go through, so they are dead plant tissues
wrote...
#2
12 years ago
Yes They can be considered plant tissue.
Phloem: carries sugar water from shoots to roots
Xylem: mineral water from rootss to shoots

My notes also say that parenchyma, collenchyma and sclerenchyma are plant tissue i also have the xylem and phloem as a tissue too
wrote...
#3
12 years ago
Cells are cells not tissues, however, cells do make up tissues.  Tissue is made up of a collective group of cells that function together.  Phloem and xylem are both tissues in a plant.

I believe it is xylem that is supporting tissue (but it may be phloem, I haven't studied this in a year or so now, and I have never liked plants), but it is stiff and is what makes the plant be able to stand upright.  Supporting tissue is firm (and supporting O.o) because it has a lot of chitin in it.

Hope this helps!
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