Osmosis is controlled by the concentration of …………… molecules.

Plants absorb water from the roots because the cell sap is …………… (more, less) concentrated than the surrounding fluids.

Human red blood cells, when kept in a hypertonic solution, …………… occurs. (Osmosis, endosmosis, exosmosis)

Given below is an experimental setup. Read the information given below the diagram and answer the question.

Concentrated sugar solution is taken in the thistle funnel. The mouth of the thistle funnel is covered with cellophane paper. The thistle funnel is inverted in a beaker containing water.

The above experiment demonstrates …………… .