Fill in the Blanks

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

An animal cell is kept in a lower solute concentration fluid. The cell will ............... . (Enlarge / Shrink)

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 questions from 26-30.

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 ............... .

After a few hours, the level of the sugar solution ............... in the thistle funnel.

It allows only ............... molecules to pass through it freely.

It prevents the passage of ............... molecules.

A control experiment can be set up by taking plain ............... in the thistle funnel and placing it in another beaker containing water.