Question

Complete the following statements: a) Hypotonic solution is one in which the solution kept outside the cell has ................ solute concentration than inside the cell.
b) Active transport is one in which the ions outside the roots move in by utilising ...............
c) The bending movements of certain flowers towards the sun and the sleep movements of certain plants at night are examples of ................​

Answer 1

Answer:

Explanation:

C The bending movements of certain flowers towards the sun and the sleep movements of certain plants at night are examples of turgor movements. When placed in a more concentrated solution, the cell contents will shrink. Active transport is in a direction opposite to that of diffusion.

B In active transport, the mineral ions are forcibly carried from the surrounding soil i.e. the region of their lower concentration into the roots i.e. the region of their higher concentration through the cell membrane by expenditure of energy. This energy is supplied by the cell in the form of ATP.

AA hypotonic solution has a low solute concentration than the inside of the cells (solute concentration in the cell is high). Osmotic forces then cause water from a solution to enter the cells. The cell eventually stretches and bursts in the process becoming lysis.