Chapter 6

Question 1

diffusion

Answer 1

transport of material due to random movement of particles; high to low concentration

Question 2

hyperosmotic

Answer 2

organisms with body fluids with a lower concentration of water and higher solute concentration than external environment

Question 3

hypoosmotic

Answer 3

organisms with body fluids with higher concentration of water and lower solute concentration than external environmetn

Question 4

isosmotic

Answer 4

organisms with body fluids containing same concentration of water and solutes as external environment

Question 5

matric forces

Answer 5

force resulting from waters tendency to adhere to walls of containers such as cell walls or soil particles in lining a soil pore

Question 6

metabolic water

Answer 6

water released during oxidation of OMolecules

Question 7

osmoregulation

Answer 7

regulation of internal salt concentration and water suing variety of anatomical structures and physiological processes

Question 8

osmosis

Answer 8

diffusion of water down its concentration gradient

Question 9

relative humidity

Answer 9

measure of water content of air relative to content at saturation; relative humidity = water vapor density/saturation water vapor density x 100

Question 10

saturation water vapor pressure

Answer 10

pressure exerted by water vapor in air that is saturated with water vapor

Question 11

vapor pressure deficit

Answer 11

VPD - difference b/t actual water vapor pressure and saturation water vapor pressure at particular temp

Question 12

water potential

Answer 12

capacity of water to do work, which is determined by its free energy content

Question 13

water vapor pressure

Answer 13

atm pressure exerted by water vapor in air; increases as water vapor in air increases