Question
Biology Question on Transport in Plants
Which of the following is not observed during an apoplastic pathway?
A
Movement of water occurs through intercellular spaces and wall of the cells
B
The movement does not involve crossing of cell membrane
C
The movement is aided by cytoplasmic streaming
D
Apoplast is continuous and does not provide any barrier to water movement
Answer
The movement is aided by cytoplasmic streaming
Explanation
Solution
The apoplast refers to the interconnected system of cell walls that runs throughout the plant body, with the exception of certain regions such as the Casparian strips in roots. As a result of this separation, the apoplast cannot rely on cytoplasmic streaming for its transport mechanisms nor can it utilize plasmodesmata for movement between cells.