8.transport in plants Flashcards
1
Q
lignin
A
a hard strong waterproof substance that forms the walls of xylem vessels
2
Q
xylem
A
a plant tissue made up of dead empty cells joined end to end that transports water and mineral ions and helps support the plant
3
Q
phloem
A
a plant tissue made up of living tissues joined end-to-end that transports substance made by the plant
4
Q
transpiration
A
loss of water vapour from a plant
5
Q
transpiration pull
A
a force produced by the loss of water vapour from a leaf which reduces the pressure at the top of xylem vessels
6
Q
conditions that affects transpiration rate
A
temp, wind, humidity
7
Q
translocation
A
the movement of sucrose and amino acids in phloem from sources and sinks
