BIO 353 Practice Exam Questions with Verified Solutions 100% Correct

BIO 353 Practice Exam Questions with Verified
Solutions 100% Correct

A new drug has been C. Voltage gated K+ Channels
discovered that will
prevent repolarization in
cells. What is the most
likely target of this drug?
A. Voltage gated Na+
Channels
B. K+ Leak Channels
C.Voltage gated K+
Channels
D. Na+-K+ Pump

, How do neurotransmitters C. Binding to the extracellular domains of ligand-
such as serotonin gated ion channels
stimulate target cells?
A. Binding to the
intracellular domains of
ligand-gated ion channels
B. Binding to the
intracellular domains of
voltage-gated ion
channels
C. Binding to the
extracellular domains of
ligand-gated ion channels
D. Binding to the
extracellular domains of
voltage-gated ion
channels

In a typical animal cell C. the concentration of K+ is higher inside of the cell
_________. but the concentration of Na+ is higher outside of the
A. the concentrations of cell.
both Na+ and K+ are
higher outside of the cell
than inside of the cell.
B. the concentration of
Na+ is higher inside the
cell but the
concentration of K+ is
higher outside of the cell.
C. the concentration of K+
is higher inside of the cell
but the concentration of
Na+ is higher outside of
the cell.
D. the
concentrations of Na+
and K+ are the same on