A. Na+
B. K+
C. Cl-
D. PO4-2
Related Mcqs:
- Under resting membrane potentials:
A. Outer surface of neuron is more positive
B. Inner surface of neuron is more positive
C. Both of these surfaces are equally positive
D. none of these. - Normal resting membrane potential of a neuron is_____________?
A. – 50 mv
B. – 60 mv
C. – 70 mv
D. – 80 mv - Value of resting membrane potential is_____________?
A. 0.03 V
B. 0.05 V
C. 0.07 V
D. 0.09V - Maintenance of normal resting potential via movement of K+ inside the cell and na+ out is a/an ___________ process?
A. Active
B. Passive
C. Diffusional
D. None of these. - Intake of liquid material by cell membrane is called___________?
A. Endocytosis
B. Exocytosis
C. Phagocytosis
D. Pinocytosis - Percentage of proteins in cell membrane is____________?
A. 20-40%
B. 40-50%
C. 60-80%
D. 80-100% - Movement of the material across the cell membrane which does not requiring expenditure of metabolic energy is called__________?
A. Active transport
B. Passive transport
C. Co-transport
D. Counter transport - Which of the statement about cell membrane is not true?
A. It contains protein molecules embedded in lipid bilayer
B. It is a differentially permeable membrane.
C. It contains charged pores thus ions being charged particles cross cell membrance much easier than neutral particles.
D. It may get infolded to engulf solid or liquid material. - Which adaptation is acquired by plants of cooler areas to prevent lipid crystal formation in cell membrane?
A. Change in membrane protein composition.
B. Change in the solute composition of the cell membrane which prevents crystallization.
C. Increase in proportion of unsaturated fatty acids.
D. Development of heat shock proteins. - Which of the following ions are involved in the initiation of nerve impulse_______________?
A. Na+
B. K+
C. Fe
D. none of these
