Dictionary » P » Parenchyma



(Science: pathology) The essential elements of an organ, used in anatomical nomenclature as a general term to designate the functional elements of an organ, as distinguished from its framework or stroma.

Origin: gr. = anything poured in beside

(plant) The parenchyma exists in the vascular bundle. It has a thin cell wall when compare with sclerenchyma. It is a living cell in the plant.

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Transport In Plants

... Sapwood is xylem and mostly alive It is the principal water conducting tissue of vascular plants. Xylem consists of tracheids , vessels , xylem parenchyma and xylem fibres. Also ray parenchyma Also the xylem of softwoods (Gymnospermae) do NOT contain vessels. Phloem: It is a living complex permanent ...

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by kika
Tue Aug 02, 2011 10:40 am
Forum: Botany Discussion
Topic: Transport In Plants
Replies: 3
Views: 11660


Hi! I've studied a cross section(40X) of a Nymphaea leaf and were supposed to locate hydrenchyma. I know that hydrenchyma is water storing parenchyma cells, which makes sense since Nymphaea is a water lily of some sort. however, all the anatomical features I was able to identify were spongy ...

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by Nelsson
Thu Aug 28, 2008 9:40 am
Forum: Botany Discussion
Topic: Hydrenchyma
Replies: 2
Views: 5396

Biology Hangman Game

H and Y!! palisade parenchyma?

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by SgtSlaughter
Tue Feb 26, 2008 4:55 pm
Forum: General Discussion
Topic: Biology Hangman Game
Replies: 582
Views: 206935


... it produces positive hydrostatic pressure. Eventually water moves to the xylem vessels behind ions that are passively transported from the xylem parenchyma to the xylem through the inwardly rectifying channels. New portions of water entering xylem vessels push it higher and higer. Such situation ...

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by SU_reptile
Wed May 09, 2007 8:27 pm
Forum: Botany Discussion
Topic: Xylem!!
Replies: 1
Views: 6643

polar transport of auxin

... The current model is that this polar transport is due to an assimetry in auxin transport proteins, that they are only located at the bottom of parenchyma xylem cells(through which auxin moves). However, if auxin transport proteins are only located at the bottom of cells, how does the auxin ...

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by MrMistery
Sat Jan 27, 2007 11:02 am
Forum: Botany Discussion
Topic: polar transport of auxin
Replies: 9
Views: 8210
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