Question

Question 3
(a) The diagram given below represents a plant cell after being placed in a strong
sugar solution. Study the diagram and answer the questions that follow:
3
2.
(i) What is the state of the cell shown in the diagram?
(ii) Name the structure that acts as a selectively permeable membrane.
(iii) Label the parts numbered 1 to 4 in the diagram.
(iv) How can the above cell be brought back to its original condition? Mention
the scientific term for the recovery of the cell.
(v) State any two features of the above plant cell which is not present in animal
cells.

Answer 1

Answer:

1) plasmolysed cell

2) cell membranes act as a selective permeable membranes

3) 1- cell membranes, 2- space filled with strong sugar solution, 3- plasma membrane,4- nucleus

4) if the cell is placed in the hypotonic sugar solution, the cell will be brought to be it's original condition. this is called deplasmolysis.

5)

• presence of cell wall
• abliti to shrink the protoplasm and plasmolyse