P-The cell membrane (cytoplasm) pulled away from the cell wall.
Q - Vacuole: Water diffuses across the cell membrane by osmosis from high water potential to low water potential.
R - The cell wall
2. Location R is The cell wall
- The solution outside the cell has higher water potential than the cells. Water diffuses across the cell membrane by osmosis from high water potential to low water potential.
In Fig. 1.2, the plant cells have been placed in a concentrated salt solution. This has caused water to move out of the cells by osmosis, making them shrink. As a result, the cell membrane has pulled away from the cell wall in some places, creating the appearance of gaps between the two layers.
So, The cell wall is a rigid outer layer that provides support and protection for the cell. It is made of cellulose, a type of sugar molecule
See text below
Fig 1.1
Fig. 1.2 shows cells taken from the same plant tissue when mounted on a slide with concentrated salt solution.
P
Q
R
Fig 1.2
(a) (i) Identify structures P and Q in Fig. 1.2.
P
Q
(ii) State the contents of location R in Fig. 1.2.
[2]
[1]