Amoeba moves when

Options

A. Upper part of plasma-gel changes to plasmasol
B. Lower part of plasmasol changes into gel
C. Upper part of plasmasol changes into plasmagel
D. All the above

Answer

C

Explanation

The sol – gel theory was first advocated by Hymen. This theory is based upon the fact that the plasmasol change into a plasmagel and vice versa. The plasmasol changes into a rigid plasmagel at the anterior end and at the posterior end the plasmagel changes into plasmasol causing a forward streaming of the more fluid plasmasol.