plant nutrition

by what process does water enter the roots

osmosis

drawing of TS of root

showing dermal tissue + vascular + root hair

name two irish scientists who first described the upward movement of water in plants

Henry Dixon John Joly

describe the upwards movement of water in plants

root pressure pushes water in xylem

vascular tissue that transports photosynthesis products

pholem

structural features

companion cells sieve tubes sieve plates

relationship

as water uptake increases transpiration also increases

reason

high water uptake makes more water available for transpiration

conditions for highest rate

hottest
brightest

cell controlling stomata

guard cells

advantages of stomata underneath

reduces water loss by transpiration

disadvantages of high transpiration rate

wilting

plant response to (v)

close stomata