Plant systems 4.2.3.2 pt1

what does the phloem transport

dissolved sucrose and amino acids

from where to where does the phloem transport

from leaves to the storage and growing parts of the plant. also transports sucrose up the plant from starch stores

are phloem cells living or non

phloem cells are living, if they are damaged they can not work properly

structure of phloem

sieve tubes which have no nuclei and has a perforated end so its cytoplasm connects one cell to the next, companion cells which are attached to sieve tubes and provide energy (ATP) for transport.

direction of transport in phloem

upwards and downwards : two-way flow

how do phloem transport

translocation

what does the xylem transport

dissolved mineral ions and water

from where to where does the xylem transport

roots to shoots

what direction does xylem transport

upwards

xylem structure

they have thick impermeable cellulose cell walls strengthened by lignin. they are arranged in a long thin hollow tube

are xylem living or dead

once the xylem cells have formed the xylem they die

how does the xylem transport

transpiration stream