A cell wall is a tough and flexible layer surrounding the cell membrane in plants, algae, and most prokaryotes.
impermeability
A cell wall is a tough and flexible layer surrounding the cell membrane in plants, algae, and most prokaryotes. The cell wall shows complete permeability as it helps to transport substances in and out of the cell.
So, the correct answer is A) 'Complete permeability'.
A bob of heavy mass \(m\) is suspended by a light string of length \(l\). The bob is given a horizontal velocity \(v_0\) as shown in figure. If the string gets slack at some point P making an angle \( \theta \) from the horizontal, the ratio of the speed \(v\) of the bob at point P to its initial speed \(v_0\) is :
Read More: Fundamental Unit of Life: Cell
The different parts of a cell and their functions are as follows: