Introduction Flashcards
Translocation?
and by cytoplasmic streaming supplemented by active transport.
Transport over longer distances proceeds through the vascular system
(the xylem and the phloem) and is called translocation.
In rooted plants, transport in xylem (of ……and …..) is
essentially….from roots to the stems.
Water and minerals
Unidirectional
……and ….. however, undergo multidirectional transport
Organic nutrients
and
mineral nutrients
…. synthesised in the photosynthetic leaves are exported to all
other parts of the plant including …
Organic compounds
Storage organs
From the storage organs
Organic compounds are later …
Reexported
The ….are taken up by the
roots and transported upwards into the stem, leaves and the growing
regions.
Mineral nutrients
When any plant part undergoes senescence, nutrients may be…
withdrawn from such regions and moved to the growing parts.
1…2..and 3…are also transported,
though in very small amounts, sometimes in a strictly …. or…
manner from where they are synthesised to other parts.
1.Hormones
2.plant growth regulators and 3.other chemical stimuli
polarised
unidirectional
Hence, in a flowering plant there is a ….. (but probably very orderly) moving in different directions, each organ receiving
some substances and giving out some others.
Complex traffic of compounds