Question

1) If a neuron were poisoned to stop ATP production, what would happen?

a. Action potentials would continue indefinitely

b. Continue production of action potentials for a period of time

2) Cell adhesion molecules:

a. neither of these choices

b. are membrane proteins that stabilize the pre-synaptic and post-synaptic membranes in synapses

c. make gap junctions that permit two cells to be electrically coupled

Answer 1

1) If a neuron were poisoned to stop ATP production, what would happen?

Answer:Continue production of action potentials for a period of time.

In a neuron, action potential are always the same size under normal conditions because the concentrations of the inward and outward flowing ions dont change over time in normal cells.

2) Cell adhesion molecules:

Answer: are membrane proteins that stabilize the pre-synaptic and post-synaptic membranes in synapses

cell adhesion molecules is a group of transmembrane proteins that mediate cell-cell and cell-ECM interactions.for e.g. nectins are distict family of cell adhesion molecules.