Learn more about our help with Assignments: Biology
Comments
Assignment Expert
28.04.14, 08:09
We are glad to be helpful. If you really liked our service please
press like-button beside answer field. Thank you!
qwerty
25.04.14, 11:59
Very well explained. Thanks.
Assignment Expert
25.04.14, 11:33
Resting membrane potential is the steady transmembrane potential of a
cell that is not producing an electric signal. By convention,
extracellular fluid is assigned a voltage of zero, and the polarity
(positive or negative) of the membrane potential is stated in terms of
the sign of the excess charge on the inside of the cell. For example,
if the intracellular fluid has an excess of negative charge and the
potential difference across the membrane has a magnitude of 70 mV, we
say that the membrane potential is -70 mV (inside relative to
outside). – 70 mV is a typical value of resting membrane potential
for neurons. Action potentials are rapid, large alterations in the
membrane potential during which time the membrane potential may change
100 mV, from -70 to +30 mV, and then returns to its resting membrane
potential. Transient changes in the membrane potential from its
resting level produce electrical signals.
Qwerty
24.04.14, 16:43
What does the no.45 and 0 indicate ? And what is the sign - and + ?
Rest explanation is good.
Leave a comment
Thank you! Your comments have been successfully added. However, they need to be checked by the moderator before being published.
Finding a professional expert in "partial differential equations" in the advanced level is difficult.
You can find this expert in "Assignmentexpert.com" with confidence.
Exceptional experts! I appreciate your help. God bless you!
Comments
We are glad to be helpful. If you really liked our service please press like-button beside answer field. Thank you!
Very well explained. Thanks.
Resting membrane potential is the steady transmembrane potential of a cell that is not producing an electric signal. By convention, extracellular fluid is assigned a voltage of zero, and the polarity (positive or negative) of the membrane potential is stated in terms of the sign of the excess charge on the inside of the cell. For example, if the intracellular fluid has an excess of negative charge and the potential difference across the membrane has a magnitude of 70 mV, we say that the membrane potential is -70 mV (inside relative to outside). – 70 mV is a typical value of resting membrane potential for neurons. Action potentials are rapid, large alterations in the membrane potential during which time the membrane potential may change 100 mV, from -70 to +30 mV, and then returns to its resting membrane potential. Transient changes in the membrane potential from its resting level produce electrical signals.
What does the no.45 and 0 indicate ? And what is the sign - and + ? Rest explanation is good.
Leave a comment