The charge in the neuron cytoplasm having DNA, RNA, proteins and amino acids will be……..
a) negative
b) positive
c) neutral
d) none of them
During resting membrane potential, the concentration of K+ ion is……greater in the fluid inside than outside.
a) 10times
b) 20 times
c) 30times
d) 40times
Explanation K+ ions 400 mM inside than 20 mM outside
During resting membrane potential, the concentration of Na+ ion is……greater outside the cell than the fluid inside.
a) 10times
b) 20 times
c) 30times
d) 40times
Explanation Na+ ions 50 mM inside than 450mM outside
For every two K+ ions that are actively transported inward, how many Na+ ions are pumped outward?
a) two
b) three
c) four
d) many
Explanation by this way inside becomes more negative than outside of neuron membrane
Which of the following negatively charged organic compounds in the neuron cytoplasm?
a) some amino acids and many proteins
b) RNA and DNA
c) carbohydrates and lipids
d) both a and b
Explanation presence of these ions in the neuron cytoplasm makes inside more negative
Which of the following ions are leaked outside continuously during resting membrane potential through non-voltage regulated gates?
a) sodium
b) potassium
c) Lithium
d) all of these
Explanation more K+ ions leakage increase negative inside
