Question

Each of these statements was made by a candidate in an examination. Each one contains at least one error.

Decide what is wrong with each statement, and rewrite it correctly.

a.If Visking tubing containing a sugar solution is put into a beaker of water, the sugar solution moves out
of the tubing by osmosis.
b.Plant cells do not burst in pure water because the cell wall stops water getting into the cell.
c.When a plant cell is placed in a concentrated sugar solution, water moves out of the cell by osmosis,
through the partially permeable cell wall.
d.Animal cells plasmolyse in a concentrated sugar solution.

Pls i really need help
And thanks later!!

Answer 1

A) In the option A, the sugar solution moves out that is wrong. If Visking tubing is immersed in hypertonic or hypotonic solution, the water moves out or in respectively. The sugar does not move in or out.
B) In the option B, the cell wall stops water getting into the cell that is wrong. After a plant cell is immersed in pure water, water enters by osmosis. However, the relatively inelastic cell wall will expand, and it exerts a back pressure on the cell. The back pressure is called turgor pressure which opposes further water uptake.
C) In the option C, the partially permeable cell wall is wrong. The characteristics of cell walls is full permeability.
D) In the option D, animal cells plasmolyse that is wrong.
The phenomenon of plasmolysis is found in the cell with cell walls such as plants, fungi, and bacteria. Animal cells are not surrounded by cell walls, so plasmolysis does not be found in animal cells.