osmotic pressure
turgor pressure
transpiration pull
suction pressure
root pressure.
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The question asks what keeps the stems of young herbaceous plants upright. The options provided are osmotic pressure, turgor pressure, transpiration pull, suction pressure, and root pressure. Out of these options, the correct answer is turgor pressure
Through the concentration of the cell sap, there is presence of concentration gradient, this water is drawn into the vocuoles, creating turgidity thus keeping the plant upright. Thus answer is A
The stem of young herbaceous plants is kept upright mainly by turgor pressure, which is the internal hydrostatic pressure of water pushing the cell membrane against the cell wall, making the cells rigid. This turgidity ensures the plant remains upright, whereas a loss of water leads to wilting.
