Question 54
Why are xylem and phloem called complex tissues? How are they different from one other?

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Solution

Complex tissues are made of more than one type of cells. Both xylem and phloem consists of more than one type of cells, which coordinate to perform a common function.
$\begin{matrix} X y l e m & P h l o e m C o n s i s t s o f t r a c h e i d s, v e s s e l s, x y l e m p a r e n c h y m a & C o n s i s t o f s i e v e t u b e s, c o m p a n i o n c e l l, p h l o e m a n d x y l e m f i b e r s . & p a r e n c h y m a a n d p h l o e m f i b e r s . T h e y t r a n s p o r t w a t e r a n d m i n e r a l s v e r t i c a l l y f r o m & T h e y t r a n s p o r t f o o d f r o m l e a v e s t o o t h e r p a r t s o f s o i l t o a e r i a l p a r t s o f t h e p l a n t . & t h e p l a n t . M o s t o f t h e c e l l s e x c e p t x y l e m p a r e n c h y m a a r e & M o s t o f t h e c e l l s e x c e p t p h l o e m f i b r e s a r e l i v i n g d e a d c e l l s & c e l l s . \end{matrix}$

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Why are xylem and phloem are called vascular or conducting tissues? [1 MARK]

Question 48
Fill in the blanks
(a) ___ are forms of complex tissue.
(b) ___ have guard cells.
(c) Cells of cork contain a chemical called ___.
(d) Husk of coconut is made of ___ tissue.
(e) ___ gives flexibility in plants.
(f) ___ and ___ are both conducting tissues.
(g) Xylem transports ___ and ___ from soil.
(h) Phloem transport ___ from ___ to other parts of the plant.

Q. Question 3
How are simple tissues different from complex tissues in plants?

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Question 54 Why are xylem and phloem called complex tissues? How are they different from one other?

Question 54
Why are xylem and phloem called complex tissues? How are they different from one other?