Maintenance of normal resting potential via movement of K+ inside the cell and na+ out is a/an ___________ process?

Related Mcqs:

1. Normal resting membrane potential of a neuron is_____________?

   A. – 50 mv
   B. – 60 mv
   C. – 70 mv
   D. – 80 mv

2. Normal action potential of a neuronal cell is ___________?

   A. plus 50 mv
   B. plus 60 mv
   C. plus 70 mv
   D. plus 80 mv

3. The movement of water molecules from a region of higher water potential to a region of lower water potential (through membrane)

   A. Deffusion
   B. Osmosis
   C. Active transport
   D. None of these

4. Value of resting membrane potential is_____________?

   A. 0.03 V
   B. 0.05 V
   C. 0.07 V
   D. 0.09V

5. Cell membrane under resting conditions is impermeable to all the ions except_____________?

   A. Na+
   B. K+
   C. Cl-
   D. PO4-2

6. ___________ potential is the measure of the change in water potential of a system due to the presence of solute molecules?

   A. Osmotic
   B. Pressure
   C. Both of these
   D. None of these

7. Extremely long molecule of DNA that is tightly folded to fit inside the cell component is called_____________?

   A. Nucleus
   B. Chromosome
   C. Chromatid
   D. Chromatin body

8. 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.

9. Transport of minerals from soil to epidermal cells of roots via carrier protein molcules along their concentration gradient is called___________?

   A. Diffusion.
   B. Facilitated diffusion.
   C. Passive transport.
   D. Active transport.

10. Which of the following CANNOT be transmitted via infectious droplets?

    A. Rubella
    B. Common cold
    C. Influenza
    D. None of the above

    Submitted by: Lubaba