Answer the following statements true (T) or false (F)
1.A graded potential allows for variable, rather than all-or-none responses, in neurons.
2.During an action potential, sodium ions pour into the cell.
3.The purpose of the nodes of Ranvier is to start nerve impulses.
4.A nerve impulse does not spread backwards because of a refractory period in which the membrane reestablishes its resting potential and cannot generate another action potential.
5.The reason that we can tell light from sound is because different neurons transmit different stimuli.
1.TRUE
2.TRUE
3.FALSE
4.TRUE
5.TRUE
You might also like to view...
When a person dies, the body often experiences rigor mortis. In this condition, it is as if the muscles have become
inflexible and it is very difficult to manipulate the joints. Why does this occur? What will be an ideal response?
The oxygen content of air at sea level is approximately
a. 21 percent. b. 78 percent. c. 0.04 percent. d. 0.96 percent. e. 100 percent.
Procollagen chains are synthesized on the endoplasmic reticulum.
a. true b. false
After eating a Yummie cake, what molecule do you expect to be most abundant in your digestive system?
A) amino acids B) monosaccharides C) cellulose D) triglycerides