A typical root pumps out H+ to maintain a strong membrane potential of about
A. -12 V.
B. 120 V.
C. 60 Hz.
D. -160 mV.
E. pH 5.0.
D. -160 mV.
Proton pumps move H+ ions out of the root creating a membrane potential of about -160 mV.
You might also like to view...
Why is water not able to dissolve or break down oil? a. Water is polar and oil is nonpolar
b. Water is polar and oil is polar. c. Water is nonpolar and oil is nonpolar. d. Water is nonpolar and oil is polar.
The correct sequence going from smallest to largest is
A. molecule - atom - organelle - tissue - cell. B. tissue - cell - organelle - molecule - atom. C. atom - molecule - organelle - cell - tissue. D. cell - molecule - tissue - organelle - atom. E. cell - tissue - organelle - molecule - atom.
The somatic senses are those whose receptors are associated with which areas of the body?
a. skin b. muscles c. and joints d. all of the above
Which is NOT an indigenous microbe used for bioremediation?
A) Piscirikettsis salmonis B) Pseudomonas aeruginosa C) Phanerochaete sordida D) E. coli E) Deinococcus radiodurans