Osmosis is controlled by the concentration of ............... molecules.
Answer
Osmosis is controlled by the concentration of water molecules.
An animal cell is kept in a lower solute concentration fluid. The cell will ............... . (Enlarge / Shrink)
Answer
An animal cell is kept in a lower solute concentration fluid. The cell will enlarge .
Plants absorb water from the roots because the cell sap is ............... (more, less) concentrated than the surrounding fluids.
Answer
Plants absorb water from the roots because the cell sap is more concentrated than the surrounding fluids.
Human red blood cells, when kept in a hypertonic solution, ............... occurs. (Osmosis, endosmosis, exosmosis)
Answer
Human red blood cells, when kept in a hypertonic solution, exosmosis occurs.
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 ............... .
Answer
The above experiment demonstrates osmosis .
After a few hours, the level of the sugar solution ............... in the thistle funnel.
Answer
After a few hours, the level of the sugar solution increases in the thistle funnel.
It allows only ............... molecules to pass through it freely.
Answer
It allows only water molecules to pass through it freely.
It prevents the passage of ............... molecules.
Answer
It prevents the passage of sugar molecules.
A control experiment can be set up by taking plain ............... in the thistle funnel and placing it in another beaker containing water.
Answer
A control experiment can be set up by taking plain water in the thistle funnel and placing it in another beaker containing water.