MUSCLE
SKELETAL MUSCLE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
Inside a muscle cell that is at rest, the internal charge is ____
|
|
Negative
|
|
|
Positive
|
|
|
Neutral
|
|
|
None of the above
|
Explanation:
Detailed explanation-1: -The negative charge within the cell is created by the cell membrane being more permeable to potassium ion movement than sodium ion movement. In neurons, potassium ions are maintained at high concentrations within the cell while sodium ions are maintained at high concentrations outside of the cell.
Detailed explanation-2: -Key Points. When the neuronal membrane is at rest, the resting potential is negative due to the accumulation of more sodium ions outside the cell than potassium ions inside the cell.
Detailed explanation-3: -The resting potential of electrically excitable cells lies in the range of −60 to −95 millivolts (1 millivolt = 0.001 volt), with the inside of the cell negatively charged.
There is 1 question to complete.