Question

The given figure represents a plant cell after being placed in a strong sugar solution. The different parts have been labelled as a, b, c, d and e. Which of the following is the correct labelling?

• A. a- Cell wall, b- Sugar solution, c- Protoplasm, d- Vacuole, e- Cell membrane
• B. a- Cell membrane, b- Sugar solution, c- Protoplasm, d- Vacuole, e- Cell membrane
• C. a- Cell wall, b- Sugar solution, c- Vacuole, d- Protoplasm, e- Tonoplast
• D. a- Cell membrane, b- Sugar solution, c- Vacuole, d- Protoplasm, e- Tonoplast

Answer 1

The correct option is A a- Cell wall, b- Sugar solution, c- Protoplasm, d- Vacuole, e- Cell membrane

The cell wall is the outermost layer of the plant cell. The Large vacuole is also a characteristic feature of plant cell present at the center of the cell. Plant cells always have a strong cell wall surrounding them.
When plant cells are placed in concentrated sugar solutions they lose water by exosmosis and they become flaccid; this is the exact opposite of turgid and the contents of the cells have shrunk and pulled away from the cell wall: they are said to be plasmolysed. During osmosis, sugar solution is gather at the space between the protoplasm and cell wall. Thus, the correct answer is option A.