NEET BIOLOGY

Detailed explanation-1: -The movements of water is through the root hairs to the cortical cells and then to the layer of endodermis is through the process of osmosis down the concentration gradient. The water enters the cortex mostly by apoplast pathway and then crosses endodermis through symplast to reach xylem vessels.

Detailed explanation-2: -In the symplast pathway (symplastic route), water passes from cytoplasm to cytoplasm through plasmodesmata (Figure 17.1. 4. 4). In the transmembrane pathway, water crosses plasma membranes, entering and exiting each cell.

Detailed explanation-3: -Movement of water into roots Water can get into xylem vessels by two routes-the symplast pathway and the apoplast pathway. If water travels via the symplast pathway then it travels from cell to cell through the cytoplasm. Neighbouring cells are connected by small channels in the cell walls called plasmodesmata.

Detailed explanation-4: -Osmosis plays a central role in the movement of water between cells and various compartments within plants. In the absence of transpiration, osmotic forces dominate the movement of water into roots.

Detailed explanation-5: -Water enters the root hair cells by osmosis. This happens because soil water has a higher water potential than the cytoplasm of the root hair cell.