2.5 - Transport systems in plants Flashcards
1
Q
Plant organs are
A
Roots, stems, leaves
2
Q
Plants need water for
A
Transporting materials and for photosynthesis
3
Q
Leaf cells, from top to bottom are labelled:
A
Upper epidermis, palisade mesophyll, spongy mesophyll, vein (consisting of xylem and phloem), lower epidermis, guard cells, stomata
4
Q
Root hair cells
A
Absorb water and minerals from soil
5
Q
Xylem vessels are
A
Dead and contain lignin for support
6
Q
Xylem vessels transport
A
Water and minerals up the stem
7
Q
The evaporation of water through leaves
A
Transpiration
8
Q
Phloem is made of
A
Living cells: sieve tubes and companion cells
9
Q
Phloem vessels transport
A
Sugar up and down the stem
10
Q
The rate of transpiration is measured using
A
A potometer
11
Q
The rate of transpiration is affected by
A
wind speed, humidity, temperature and surface area.
