Download statements about phloem

Group the following statements about phloem into the following categories
O
F
P
S
Position in plant organs
Functions of phloem and processes that occur within and between cells
Pathway taken by substances within phloem tissue
Structure of phloem tissue including cell structure and cell shape
No.
1 phloem tissue is between ‘arms’ of xylem in vascular tissue in root
Category
2 transport of sucrose from roots to leaves
3 movement of hydrogen ions and sucrose into companion cell
4 phloem sap moves through phloem tissue in root
5 phloem sap moves through phloem tissue in stem
6 sieve pores in sieve plate
7 sieve tube elements have peripheral cytoplasm
8 carrier proteins in companion cell membranes
9 sieve tube elements have thin cell walls that are not lignified
10 companion cells contain mitochondria
11 transport of amino acids from roots to leaves
12 mitochondria provide ATP for active transport across companion cell
membrane
13 on outside of vascular bundles in stems
14 on upper side of veins in leaves of dicotyledonous plants
15 phloem sap moves through phloem tissue in minor veins in leaf
16 sieve tube elements are stacked end to end
17 movement of sucrose between companion cell and sieve tube element
18 sieve tube elements are elongated
19 phloem sap moves through phloem tissue in petiole and main vein of leaf
20 phloem sap flows easily, there is little resistance to flow
21 plasmodesmata between companion cell and sieve tube element
22 hydrogen ions are pumped out of companion cell
23 sieve plates
24 sieve tube elements have no nuclei
25 sieve tubes form continuous columns
26 transport of sucrose from source to sink
Match the structural features (S) of phloem tissue (sieve tube elements and companion
cells) with the ways in which those features help the transport in phloem (F). Use the
numbers from the table above. You may wish to use some of the functions more than once.
Structural
feature of
phloem tissue
How it helps
transport in
phloem