Water potential is the
combination of turgor pressure and pressure potential
difference between pressure potential and osmotic potential
combination of pressure potential and solute potential
product of pressure potential and osmotic potential
The reason that a column of water in a tall tree does not sink because of its weight is
the formation of hydrogen bonds with the plants vessels
bubbles form that are too large to be transported
the presence of strong ion concentrations near the top of the tree
Which of the following is a correct list of contents of the organic material in soil?
humus,roots and decomposed material
roots and small animals
minerals, small animals, and roots
About _______________ % of the water taken in by roots is lost by transpiration.
100
The blood also carries _________ which are fragments of cells.
Blood
Platelets
Plasma
None
The combination of pressure potential and solute potential is
water potential
transpiration potential
stem potential
Stomata close when the guard cells:
gain chloride ions.
become turgid.
A common adaptation of plants to an aquatic existence is the formation of
chlorenchyma
aerenchyma
collenchyma
sclerenchyma
Specific ions are acquired by root hairs by the process of
simple diffusion
osmosis
facilitated diffusion
Guttation is:
movement of soluble organic materials through plants
movement of water through the apoplast.
evidence of root pressure.
negative pressure created by transpiration.
