Complete the following statements:
(a) Hypotonic solution is one in which the solution kept outside the cell has a lower solute concentration than .............................. the cell.
(b) Active transport is one in which the ions outside the roots move in with expenditure of energy ..............................
(c) The bending movements of certain flowers towards the sun and the sleep movements of certain plants at night are examples of ..............................
Movements in plants are seen in the form of bending, twisting and elongation of certain parts.
Folding of leaves in the mimosa plant and growth of plant towards light are examples of tropic movements. Do you agree? Why or why not?