AP BIOLOGY

Detailed explanation-1: -The turgor pressure is the pressure exerted on the walls of a cell due to the liquid or fluid present in it. Thus, it is true that turgor pressure is positive hydrostatic pressure applied by swelled protoplasm on the cell wall. Therefore, it is correct.

Detailed explanation-2: -A Turgor Pressure is the pressure that water places on the inside of a PLANT cell. An increase in turgor pressure can cause the cell membrane to press up against the cell wall and a decrease in turgor pressure can cause the cell membrane to shrivel.

Detailed explanation-3: -In a nutshell, turgor is water pressure inside any plant cell. The fluid presses the cell membrane against the cell wall so that turgor is what makes living plant tissue rigid. Low turgor, in other words, low water pressure, makes your plant soft and lifeless, and it’s the first sign of dehydration.

Detailed explanation-4: -Turgor pressure is best known in plant cells but also occurs in walled cells of other organismal kingdoms. The build-up and maintenance of turgor pressure requires five key components: water, solutes, a selectively permeable membrane, a wall and metabolic energy.

Detailed explanation-5: -In plants, because of the stiff cell wall surrounding the plasma membrane, as in other walled cells such as bacteria or fungi, hydrostatic pressure has values of the order of the atmospheric pressure, reaching as high as 20 bars.