xylem

Question 1

the xylem transports w…. and m…….. from r….->s…->l…..

Answer 1

water
minerals
roots
stem
leaves

Question 2

i is made up of long h….. tubes formed by d… cells joined cells. the ater and minerals can only be transported o.. way. the only way is ..

Answer 2

hollow
dead
one
up

Question 3

l

what do the walls of the xylem have to give it strength and structure

Answer 3

ligin

Question 4

transpiration
Evaporation of w…. from plants surface eg l…..

Answer 4

water
leaves

Question 5

cohesion
water molecuels are a……. to other by hy…… bonding

Answer 5

attached
hydrogen

Question 6

stage 1 of cohesion tension therory:
water tr…….. from levaes. this reduces the w….. pot…….. in cells therefore watre is drawn out of xylem via os……

Answer 6

transpires
water potential
osmosis

Question 7

stage 2 of cohesion tension therory:
this create ten….. (negative pr……) and becuase water is co…… water is drawn up through xylem

Answer 7

tension
pressure
coheasive

Question 8

stage 3 of cohesion tension therory:
also allows more water to enter roots via os…..
w….. pot….. in root cells d……)

Answer 8

osmosis
water potential
decreases