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

Related Mcqs:

1. Sodium ions are “pumped” from a region of lower concentration to a region of higher concentration in the nerve cells of humans. This process is an example of

   A. Diffusion
   B. Passive transport
   C. Osmosis
   D. Active transport

2. ___________ 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

3. Breakdown of large molecules into smaller ones utilizing water molecules is_________?

   A. Hydration
   B. Hydrolysis
   C. Dehydration synthesis
   D. Electrolysis

4. Normal resting membrane potential of a neuron is_____________?

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

5. Value of resting membrane potential is_____________?

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

6. 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

7. Water potential of pure water is__________?

   A. zero
   B. one
   C. negative
   D. two

   Submitted by: Maryam Aftab

8. 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.

9. Normally, in the process of osmosis, the net flow of water molecules into or out of the cell depends upon differences in the ?

   A. Concentration of water molecules inside and outside the cell
   B. Concentration of enzymes on either side of the cell membrane
   C. Rate of molecular motion on either side of the cell membrane
   D. None of these

10. Non polar organic molecules are ___________ in water?

    A. Soluble
    B. Insoluble
    C. Partially soluble
    D. Depends upon condition