xylem, phloem, foods Flashcards
Transpiration involves the movement of…
water
Do plants need living phloem in order to transport sugars?
yes
Xylem is found in the…
root, stems & leaf
Water leaves the plant leaves through…
stomata
Which plant tissue is woody and dead.
xylem
Name the process by which mineral ions move from the soil into the root.
active transport
Can Xylem vessels be blocked by air bubbles?
yes (They are extremely tiny and so the forces of surface tension are high enough to ‘glue’ the air bubble to the walls of the xylem vessels, blocking the transpiration stream)
Which specialised plant tissue transports dissolved sugars?
phloem
If we use a poison which inhibits respiration, which of the following processes is not blocked?
xylem, because it is a dead tissue
Name the special tissue which transports water and mineral ions.
xylem
What is active transport?
the movement of molecules across a cell membrane from a lower concentration to higher concentration
What is osmosis?
osmosis is the movement of water molecules from a solution with a high concentration
