Stomata Quiz

What is stomata movement caused by

response by guard cells to osmosis

What radial wall thickings do guard cells ahve

liginins

what is the structural compnents of nucleci acids and lipids

phosphrous

what is abudnant in the middle lamella of the plant cell wall and Smooth ER

calcium

What do plants take up

nitrogen phosphrous and potassium

what are the three reagents you will have that interfere with opening adn closing of the stomata

ABA, vanadate (porotn pumps) , adn fusicoccin (proton pump of guard cells)

where are stomata located

small pores located on the underside of the leaf

K

Ca
CL

Intake of K opens stomata

ABA increase CA to close stomata

CL acts as a counter balance

Mechansim of the stomata opening oart one

absorbance of blue light via phototropin

reg. activity of protien kinase

PK prmotos binding of protien to plasma membrane H+ atpase stabiling proton pump in active state

mechanism of stomata opening part two

memmrbaen hyperpolariation drives k na and ca uptake

decrease in water potential drives water uptain adn opens stomta

aquaporin channels allow bulk of water to enter guard cells