water potential AB Bio Unit 2

What’s water potential measured in?

psi

What would happen if you poured salt water on a slug?

The slug would shrivel and die, the salt in the water decreased the waters potential because NaCl split into its ions, and the hydrogens of water molecules attach to the negative chlorine and the oxygens to the positive sodium which leaves free space

How many bars is pure water?

0, bars is a unit btw

In what direction does water flow

High—>low water potential (water potential is negative here)

High—>low concentration?

-allows water to go up roots of tree to stems and leaves