Dictionary » P » Phloem

Phloem

Definition

noun

A tissue in a vascular plant that functions primarily in transporting organic food materials (e.g. sucrose) from the photosynthetic organ (leaf) to all the parts of the plant.


Supplement

Phloem is comprised of the following major components:
(1) sieve tube
(2) companion cell
(3) phloem fibers
(4) phloem parenchyma

The tissue is responsible for translocation, a process in plants responsible for transporting the photosynthate materials to all parts of a vascular plant.

Phloem may be classified into the following based on the stage or origin of growth:


Word origin: from the Greek phloos (bark)

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Results from our forum


Monocot leaf cross section

yeah, it should be the phloem/xylem orientation

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by JackBean
Sun Dec 02, 2012 6:42 pm
 
Forum: Botany Discussion
Topic: Monocot leaf cross section
Replies: 1
Views: 613

Monocot leaf cross section

... Since monocot leaves don't have palisade tissue, and have stomata on both side, I'm wondering if the answer lies in finding the phloem? Thanks!

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by johntdlemon
Tue Nov 13, 2012 2:46 am
 
Forum: Botany Discussion
Topic: Monocot leaf cross section
Replies: 1
Views: 613

Question on Xylem and Phloem; primary and secondary

... getting graded. It is purely for my own benefit... Anyway. Here is my question. "What is the difference in the formation of primary xylem and phloem versus secondary xylem and phloem?" What I put/am thinking, is that primary x&p is formed by primary growth and an apical meristem whereas ...

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by naturalgoats
Wed Nov 23, 2011 7:43 pm
 
Forum: Botany Discussion
Topic: Question on Xylem and Phloem; primary and secondary
Replies: 2
Views: 2268

Plant & animal cell - sucrose & glucose

Also sucrose and glucose are the most common saccharides occuring in the phloem and blood of plants and animals, respectively.

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by aptitude
Sun Sep 11, 2011 8:09 pm
 
Forum: Cell Biology
Topic: Plant & animal cell - sucrose & glucose
Replies: 2
Views: 2491
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