Xylem / Phloem Flashcards
1
Q
What are the xylem and phloem both part of
A
The vascular bundle
2
Q
What does the xylem do
A
Transports water and minerals up from the roots to the leaves
3
Q
What does phloem do
A
Transports assimilates like amino acids and sucrose in both directions around the plant
4
Q
What does lignin do
A
Makes the xylem cell walls water proof which kills of the cells causing them to be water proof tubes
5
Q
Which transport system is bidirectional
A
The phloem
6
Q
What is a ploem made from
A
Sieve elements and companion cells
7
Q
How are phloem sieve tube elements adapted
A
They have no nuclei
8
Q
What do boardered pits do
A
Allow fluids to pass from cell to cell
