A man falls into deep sleep with one arm under his head. After awakening the arm is paralyzed but tingling sensation and pain sensation persists. This loss of motor function without the loss of sensory function is due to:

Pick out the wrong statement.

Which scientist in 1858 added that all cells arise from pre – existing cells ?

What is the magnification of a light microscope?

To enter or leave a cell, substances must pass through which of the following?

The study of cells.

Which statement is correct? 

Cells are:

An action potential in  a nerve:

Cellulose cell wall is fully: